bulones spring pin

8/2/2019 Bulones Spring Pin

1/8

ISO 8752

ASME B18.8.2

ASME B18.8.4M

SLOTTED SPRING PINS


2/8

SPIROL Slotted spring pins manufactured to

ISO 8752 (EN 28752), ASME 18.8.4M Type B (Metric),

and ASME B18.8.2 (Inch) are available from stock.

SLOTTED SPRING PINS

MATERIALS

Carbon steel: AISI 1070 - 1080Equivalents: DIN 177222 WkNr 1.1248 CK75 & WkNr 1.1231 CK67

BS 1449 67CS & 70CS

Martensitic Stainless Steel: AISI 420Equivalents: DIN 17441 WkNr 1.4021

BS 1449-2 420S45

Austenitic Stainless Steels: AISI 302/304Equivalents: EN 10088 / DIN 17224 WkNr 1.4300 & WkNr 1.4301

BS 1449-2 304S31

DIN 1481 is interchangeable with ISO 8752 (EN 28752) except fora variation in length tolerance.

The ASME 18.8.2 range meets the requirement of NASM10971 (formerly MIL-P-1091), NASM 16562 (formerly 16562),

NAS 561, SAE J496, and SAE AS7207 (Superseded AMS 7207and MS 17140-17190).

ISO 13337 (DIN 7346), lightweight Slotted Pins, are available made-to-order for volume applications.

ISO 9002 and QS-9000 Certifications

are your guarantee for consistent quality.

PART DESCRIPTION

SLTP 4 X 10 BK ISO 8752

StandardFinish

MaterialLength

DiameterPin Type (Slotted)

Beryllium Copper: UNS C17200Equivalents: DIN 17666 WkNr 2.1248

ISO CuBe2Pb

Contract Review / Quality Planning. A formal procedure

exists for the specification and acceptance of new orders bysales, manufacturing and quality.

Document / Drawing Control. All drawings, standards and

specifications are controlled through engineering.

SQA Approval of Suppliers and Subcontractors is

maintained by supplier system audits and monitoring ofsupplier quality performance.

System Audits are carried out regularly by independent

auditors with written reports submitted for management action.

Calibration and Gauge Control. All gauges are calibrated

on a regular basis, traceable back to national standards. Thecontrol records are computerized.

All parts are traceable through each manufacturing process

and heat treatment back to the original raw material testcertificate. Each lot has a unique identification number on thepackaging which should be retained by the customer andquoted in the event of any inquiry.

Manufacturing Controls. There is clear identification of job

and quality status with controlled routings. Capability studiesare used to verify machine and process capability; statistical

process control is used for all processes, using variable andattribute data; and there are final audit checks of completedparts and stock.

Non-Conforming Parts. These are segregated with a "hold"

label and quarantined pending a decision on disposal. Anautomated corrective action system ensures managementcontrol for quick and accurate responses to customer inquiries.


3/8

THE CHOICE ASME OR ISO

SPIROL produces Slotted Pins to both the American National Standard, ASME B18.8.4M and the InternationalStandard, ISO 8752 (EN 28752). It is our recommendation that you consider ASME pins for all new applications andfor your current applications if you are experiencing insertion problems or performance failures. Our recommendationis based on these important advantages of ASME pins:

LOWER INSERTION FORCE as a result of the smaller free diameter of the pin in relation to the nominal hole. The pin is

securely retained in the hole based on increased wall thickness, higher minimum hardness, and the minimal slot afterinsertion.

NO INTERLOCKINGbecause the maximum gap in the free diameter state is always less than the wall thickness of the pin.

HIGHER SHEAR STRENGTH based on increased wall thickness, a higher minimum hardness, and narrower slots which

close under load to ensure that the pins fail instantaneously rather than progressively in shear.

COMPARISON OF TECHNICAL SPECIFICATIONS

COMPARISON OF RECOMMENDED HOLES

ASME pins 3 mm and larger can besubstituted for ISO pins without anyreview or change. 1.5 to 2.5 mmpins require a change in themaximum specified hole.

ASME recommends tolerance classH10 for holes up to 2.5 mm and H12for diameters 3 mm and larger. ISOrecommends H12 for all diameters.

Nom. Dia. ISO ASME

1.5 1.5 / 1.6 1.5 / 1.56

2 2 / 2.1 2 / 2.07

2.5 2.5 / 2.65 2.5 / 2.58

3 and up No difference No difference

EXPANDED DIAMETER ASME pins have a smallerexpanded or free diameter relative to the nominal hole.

CHAMFER SPECIFICATION ASME specifies a maximum

chamfer diameter from 0.1 to 0.5 mm smaller than the nominalhole diameter whereas ISO only specifies a chamfer diameterless than the nominal hole diameter. ASME specifies aminimum and maximum chamfer length whereas the chamferlength in ISO is only a reference dimension.

STRAIGHTNESS ASME specifies a straightness requirement.ISO does not address it at all.

SHEAR STRENGTH ASME specifies a minimum doubleshear strength for austenitic stainless steel. ISO does not.

MATERIAL ASME includes Beryllium Copper. ISO does not.

LENGTH TOLERANCE The differences are minimal:

WALL THICKNESS ASME pins have a wall thickness equalto or greater than ISO pins and a greater cross sectional areabased on both thickness and strip width.

HARDNESS The ASME specification for carbon steel ishigher (HV 458-560 vs HV 420-520) to maximize the tensilestrength and for chrome stainless it is slightly lower (HV 423-544 vs HV 440-560) to avoid the risk of brittleness.

Nom. Dia. ISO kN ASME kN Increase %

1.5 1.58 1.8 +11.4

2 2.82 3.5 +12.4

2.5 4.38 5.5 +12.6

3 6.32 7.8 +12.44 11.24 12.3 +9.4

5 17.54 19.6 +11.2

6 26.04 28.5 +9.4

8 42.76 48.8 +11.4

10 70.16 791 +12.6

12 104.1 111.6* +7.2

14 144.7 170.0 +17.5

16 190.0 171.0 +11.1

18 250.0 222.5 +12.4

20 320.0 280.6 +11.4

SHEAR STRENGTH COMPARISON

* SPIROL standard.

Pin Length ASME ISO

4 - 10 mm

0.25 mm

0.40 mm12 - 24 mm 0.50 mm 0.40 mm

26 - 50 mm 0.50 mm 0.50 mm

55 -75 mm 0.75 mm 0.60 mm

80 - 100 mm 0.75 mm 0.75 mm


4/8

STANDARD LENGTHS AND WEIGHTS (Kg PER 1,000 PCS.)

2.5

0.1180.1420.1890.2360.2830.3300.3770.4240.4710.5190.5650.6130.6600.7070.754

0.8250.9421.06

3

0.2040.2720.3400.4070.4750.5430.6110.6790.7460.8140.8820.9501.021.09

1.191.361.531.70

4

0.4780.5970.7160.8360.9551.071.191.311.431.551.671.791.91

2.092.392.682.983.283.58

Diameter

2

0.0610.0770.0920.1220.1530.1840.2140.2440.2750.3050.3360.3670.3970.4270.4580.489

0.5340.610

1.5

0.0340.0430.0510.0680.0850.1030.1200.1370.1540.1710.1890.2060.2230.240

5

0.9421.131.321.511.701.882.072.262.452.642.833.02

3.313.774.244.715.185.65

6

1.661.942.212.492.773.043.323.603.874.154.43

4.845.546.236.927.618.308.999.6910.4

8

3.584.034.484.925.375.826.266.717.16

7.838.9510.111.212.313.414.515.716.818.019.020.121.322.4

10

7.388.128.869.5910.311.111.8

12.914.816.618.420.322.124.025.827.729.531.433.235.036.9

12

13.314.415.616.717.8

19.422.225.027.830.533.336.138.941.744.447.250.052.855.5

Length

4568101214161820222426283032

35404550556065707580859095

100

PIN MATERIALS AND HARDNESS PIN FINISHES

1.52.02.53.03.54.04.5

5.06.08.0

10.012.014.016.018.020.0

1.602.102.603.103.624.124.62

5.126.128.1510.1512.1814.1816.1818.1820.21

1.582.824.386.329.09

11.2415.36

17.5426.0442.7670.16104.1

144.7 3

171.0 3

222.5 3

280.6 3

NominalPin

Diameter

Pin Diameter

DMax.2Min.1

Chamfer Length

CWall Thickness

SRecommended

Hole SizeDouble Shear StrengthCarbon & Chrome S.S.

Nominal Nominal Min. Max.

B Carbon Steel HV 420-520 K Plain*C Chrome Stainless Steel HV 440-560 P PassivatedD Nickel Stainless Steel Work Hardened T Zinc Plated

1.52

2.53

3.54

4.5*

568

101214*1618*20

1.82.42.93.54.04.65.1

5.66.78.810.812.814.816.818.920.9

1.72.32.83.33.84.44.9

5.46.48.510.512.514.516.518.520.5

0.250.350.400.500.600.650.80

0.901.202.002.002.002.002.002.003.00

0.30.40.50.60.750.81.0

1.01.21.52.02.53.03.03.54.0

SPECIFICATIONS in mm

LENGTH

D

SB

D1

D2

D3

C

4545CHAMFER BOTH ENDS,CONTOUR OF CHAMFER OPTIONAL

1 Minimum diameter is the average of D1, D2, and D3. 2 Maximum measured with go-ring gauge. 3 Carbon Steel only.

ISO 8752EN 28752

20

61.268.976.584.291.899.5107.1114.8122.4130.1137.7145.4153.0

18*

49.055.161.367.473.579.685.891.998.0104.1110.3116.4122.5

16

32.236.741.345.950.555.159.764.368.973.578.182.787.391.9

14*

23.4

27.331.235.139.042.946.850.154.658.562.466.370.274.177.9

4.5*

0.7930.9521.111.271.431.591.751.902.062.222.382.54

2.863.173.573.964.364.76

3.5

0.3940.4930.5910.6890.7880.8860.9851.081.181.281.381.481.58

1.721.972.222.46

B IS LESS THAN NOMINAL PIN DIAMETER

Minimum kN

* Plain carbon steel pins have a protective oil finish.

Nominal Pin Length Length Tolerance

4 to 10 mm 0.25 mm

12 to 50 mm 0.50 mm55 to 100 mm 0.75 mm

4 to 10 mm + 0.5 mm12 to 50 mm + 1.0 mm55 to 100 mm + 1.5 mm

Length Tolerance DIN 1481 (Ref.)

Length Tolerance ISO 8752

* Not generally a stocked diameter.


5/8


B Carbon Steel HV 458-560 K Plain*C Chrome Stainless Steel HV 423-544 P PassivatedD Nickel Stainless Steel Work Hardened T Zinc PlatedI Beryllium Copper HV 354-412 R Phosphated, OiledLENGTH

D

SB

D1

D2

D3

C


ASME 18.8.4MTYPE B

STANDARD METRIC SIZES AND WEIGHTS (Kg PER 1,000 PCS.)

2.5

0.1420.1890.2360.2830.3300.3770.4240.4710.5190.5650.6130.6600.7070.7540.825

0.9421.06

3

0.2040.2720.3400.4070.4750.5430.6110.6790.7460.8140.8820.9501.021.09

1.191.361.531.70

4

0.4780.5970.7160.8360.9551.071.191.311.431.551.671.791.91

2.092.392.682.983.283.58

Diameter

2

0.0610.0770.0920.1220.1530.1840.2140.2440.2750.3050.3360.3670.3970.4270.4580.489

0.5340.610

1.5

0.0340.0430.0510.0680.0850.1030.1200.1370.1540.1710.1890.2060.2230.240

5

0.9421.131.321.511.701.882.072.262.452.643.833.02

3.313.774.244.715.185.65

6

1.661.942.212.492.773.043.323.603.874.154.43

4.845.546.236.927.618.308.999.6910.4

8

3.584.034.484.925.375.826.266.717.16

7.838.9510.111.212.313.414.515.716.818.019.020.121.322.4

10

7.388.128.869.5910.311.111.8

12.914.816.618.420.322.124.025.827.729.531.433.235.036.9

12

13.314.415.616.717.8

19.422.225.027.830.533.336.138.941.744.447.250.052.855.5

Length

4568

101214161820222426283032

35404550556065707580859095100

Min.

1.582.102.623.144.16

5.176.188.22

10.2512.2814.3016.3218.3520.40

Max.

1.41.92.42.93.9

4.85.87.89.7

11.713.715.617.619.5

0.150.20.20.20.3

0.30.40.40.50.60.81.01.21.4

0.70.80.91.01.2

1.41.62.02.42.82.83.03.23.4

0.350.450.550.650.8

1.01.21.62.02.53.03.03.54.0

1.52.02.53.04.0

5.06.08.0

10.012.014.016.018.020.0

1.562.072.583.104.12

5.126.128.15

10.1512.1814.1816.1818.1820.21

SPECIFICATIONS in mm

Min.1 Max.2 Max.

WallThickness

RecommendedHole Size

Min. Max.

Double Shear StrengthChamfer LengthChamferDiameter

Pin Diameter

1.52

2.534

5681012

14*1618*20

1 Minimum diameter is the average of D1, D2, and D3. 2 Maximum measured with go-ring gauge. 3 SPIROL standard. 4 Carbon Steel only.

14*

24.2

28.332.336.440.444.448.552.556.660.664.668.772.776.880.8

16

36.141.346.451.656.861.967.172.277.482.687.792.998.0

103.2

18*

49.455.561.767.974.080.286.492.698.7

104.9111.1117.2123.4

20

62.470.278.085.793.5101.3109.1116.9124.7132.5140.3148.1155.9

NominalPin

Diameter

Nominal

1.02.03.24.57.2

11.416.628.446.160.7

1.12.23.54.97.7

12.317.830.549.465.0

NickelS.S.

BerylliumCopper

Carbon &Chrome S.S.

Minimum kN

D B C S

1.83.55.57.8

12.3

19.628.548.879.1

111.6 3

170.0 4

190.0 4

250.0 4

320.0 4


In conformance with but not part of ASME 18.18.4M.* Not generally a stocked diameter.

1.662.192.723.254.30

5.336.368.45

10.5112.5514.6016.6518.7120.80

Nominal Pin Length Length Tolerance

Up to 24 mm, incl. 0.40 mmOver 24 to 50 mm 0.50 mmOver 50 to 75 mm 0.60 mmOver 75 mm 0.75 mm


6/8

STANDARD SIZES AND WEIGHTS (Kg PER 1,000 PCS.)


B Carbon Steel HV 458-560 K Plain*C Chrome Stainless Steel HV 423-544 P PassivatedD Nickel Stainless Steel Work Hardened T Zinc PlatedI Beryllium Copper HV 354-412 R Phosphated, Oiled

SPECIFICATIONS in inches

LENGTH

D

SB

D1

D2

D3

C


Pin Diameter

1/16 .0625/64 .0783/32 .0941/8 .1255/32 .1563/16 .1877/32 .2191/4 .2505/16 .3123/8 .3757/16 .4371/2 .5005/8 3 .6253/4 3 .750

Double Shear StrengthWallThickness

.062

.078

.094

.125

.156

.187

.219

.250

.312

.375

.437

.500

.625

.750

.065

.081

.097

.129

.160

.192

.224

.256

.318

.382

.445

.510

.637

.764

ChamferLength

ChamferDiameter

.066

.083

.099

.131

.162

.194

.226

.258

.321

.385

.448

.513

.640

.768

.069

.086

.103

.135

.167

.199

.232

.264

.330

.395

.459

.524

.653

.784

.059

.075

.091

.122

.151

.182

.214

.245

.306

.368

.430

.485

.608

.730

.007

.008

.008

.008

.010

.011

.011

.012

.014

.016

.017

.025

.030

.045

.028

.032

.038

.044

.048

.055

.065

.065

.080

.095

.095

.110

.125

.150

RecommendedHole Size

Carbon &Chrome S.S. Nickel S.S.

.012

.018

.022

.028

.032

.040

.048

.048

.062

.077

.077

.094

.118

.145

NominalPin

Diameter

430800

115018752750415058507050

108001630019800271004250062500

Min. Max.Min.Min.1 Max.2 Max. Max.

250460670

1090160024253400410063009500

1150015800

1.102.052.984.857.12

10.7915.1218.2428.0242.2551.1670.28

Nominal Diameter

1/16

.049

.066

.082

.098

.114

.130

.146

.162

.179

.195

.211

.227

.243

.259

5/64

.070

.095

.121

.145

.171

.196

.221

.246

.272

.296

.322

.347

.372

.397

.447

.499

.549

.600

3/32

.106

.143

.179

.215

.251

.287

.323

.359

.395

.431

.467

.507

.540

.576

.648

.720

.792

.865

1/8

.258

.323

.388

.452

.517

.581

.646

.711

.775

.840

.904

.9691.0341.1631.292

1.4211.5511.6821.8121.9412.071

5/32

.644

.735

.827

.9181.0091.1001.1911.2831.3731.4631.6451.828

2.0102.1932.3752.5572.7402.9223.2873.653

3/16

1.091.241.371.511.641.791.932.062.202.462.74

3.003.283.543.814.084.344.875.41

7/32

1.511.691.882.072.262.452.642.833.023.403.78

4.164.544.925.305.686.066.827.588.339.08

5/16

4.434.795.165.535.906.637.26

8.118.629.599.9811.0611.3413.1514.5115.8817.2418.6019.9621.7723.13

1/2

18.13

21.77

25.40

29.0332.6636.7440.3744.0045.3649.9054.4358.97

7/16

10.93

13.66

16.39

19.13

21.8624.5927.3230.0532.7935.5238.2540.9243.93

3/8

6.46

7.54

8.62

10.69

13.15

15.42

17.2419.5021.7720.0426.3128.1230.3932.6634.93

1/4

1.832.062.292.522.752.983.213.443.674.124.58

5.045.495.956.406.867.328.249.15

10.0610.9711.8812.80

Length

3/161/45/163/87/161/29/165/8

11/163/4

13/167/8

15/161

1-1/81-1/4

1-3/81-1/21-5/81-3/41-7/8

22-1/42-1/22-3/4

33-1/43-1/23-3/4

4

1Minimum diameter is average of D1, D2 and D3. 2Maximum diameter measured with go-ring gauge. 3SPIROL standard, Carbon Steel only.

ASME 18.8.2

5/8*

115.5129.9144.4158.8173.3187.7202.1216.6231.0

3/4*

154.2173.5192.8212.0231.3250.6269.9289.1308.4

Minimum Lbs. and kN

2.003.565.128.34

12.2318.4626.0231.3648.0472.5088.08

120.55189.06278.02

D B C SNom.


270500710

117017252600365044006750

102001230017000

1.202.223.165.207.67

11.5716.2419.5730.0345.3754.7275.62

BerylliumCopper

* SPIROL standards.

Nominal LengthPin Length Tolerance

Up to 1, incl. 0.015Over 1 to 2, incl. 0.020Over 2 to 3, incl. 0.025Over 3 to 4, incl. 0.030Over 4 0.035


7/8

TECHNICAL INFORMATION

Typical pin shear test fixture

SHEAR STRENGTHThe shear test procedure is set forth in ISO 8752, SAE J496,

and NASM 10971, which are identical in substance.

Load Shear block

Hardened

bushings

Pin

Spacer

Spacer and guidesfor shear block

Hardened supportblock

Fixture

Load Hardened shearblock

RECOMMENDED PIN/SHAFT RATIOThe recommended maximum ratio is 1 to 3; that is the pin

diameter should never exceed 33.3% of the shaft diameter. Ifthis limit is exceeded, the remaining material in the shaft is

inadequate and the shaft will fail before the pin.

DOUBLE PINNINGIn situations requiring exceptionally high shear strength, it is

possible to use pins in combination by driving an inner pin intoan already inserted outer pin. The gaps should be 180opposed. The recommended hole needs to be increased. It is

suggested you consult Spirol Application Specialists in thesesituations.

WHICH STAINLESS?Martensitic chrome stainless is hardened and has strengthcomparable to carbon steel and satisfactory corrosion

resistance in most cases. Austenitic nickel stainless steel has

better corrosion resistance in some environments but since it isnot hardened, it has lower strength and requires more care in

the insertion process.

HOLE PREPARATIONHoles can be drilled, punched or cast with no need for

additional reaming or sizing. Care should be taken to avoidundersize holes to eliminate potential pin damage during

insertion. The following points are suggested for yourconsideration:

Break or debur the edges, particularly in case of hardenedholes.

Countersinking is not recommended if it increases the

clearance at the shear plane.

In case of cast or sintered metal holes, provide a lead-inradius.

Whenever possible, punched holes should be punched inthe same direction as the direction of pin insertion.

Eliminate hole misalignment problems by drilling holes

together.

In case of hardened collars or similar components, flattenthe component at the entry of the hole to avoid two-point

contact as the pin starts into the hole.

Shear values specified will only be obtained under the

conditions noted in the referenced standards. Of special note:

The clearance at the shear plane cannot exceed 0.15 mmor .005.

The hole has to be the nominal pin diameter (tolerance H6)

with a hardness of not less than HV 700. The pin must be installed with the slot up.

The shear planes have to be at least one pin diameter fromeach end, and at least two diameters apart.

STRAIGHTNESS SPECIFICATION(ASME PINS ONLY)The straightness over the length of the pins shall be such that

the pin will pass freely through a ring gauge of the length anddiameter as specified below.

Up to 24 mmUp to 124 mm 50 mm1 2Over 50 mmOver 2

25 0.151 .005"50 0.152 .005"75 0.153 .005"

0.20 0.22.007"

0.40 0.43.010"

0.60 - 0.64.013"

Pin Length Gauge Length Max. Pin Dia. Plus

STRAIGHTNESS GAUGE SPECIFICATIONS

Nom. PinDiameter

0.200.250.250.500.500.700.700.90

1.502.403.508.00

10.4018.0024.0040.00

ExpandedDiameter

22.534568

10

2.32.83.34.45.46.48.5

10.5

ChamferLength

WallThickness

SPECIALS OTHER COMMON SPECIALS: Special Lengths

Special Materials

Special Tolerances

Special Finishes

Special Packaging

ISO 13337 (DIN 7343) SPECIFICATIONSDouble Shear StrengthCarbon & Chrome S.S.

Min. kM

2.42.93.54.65.66.78.8

10.8

0.400.450.450.700.700.900.901.10

0.200.250.300.500.500.750.751.00

Min. Max.Min. Max. Nominal


8/8

Applications

Typical applications use springpins as...

Fasteners to secure handles

and gears to shafts

Retaining pins

Axle shafts Stop pins

Hinge and pivot applications

Cross bars

Tube reinforcing pins

Locator pins

SPIROL slotted spring pinsare used in many industries.

Agriculture

Automotive

Construction

Appliances

Electronics

Furniture Mining

Plastics

Railways

Aerospace

FREE APPLICATION AND

INSERTION CONSULTATION

2004 Spirol International Corporation 15M 04/04 Printed in U.S.A.e-mail: [email protected]

Canada

Mexico

Europe

U.S.A. Spirol International Corporation30 Rock AvenueDanielson, Connecticut 06239Tel.] 860.774.8571 Fax] 860.774.2048www.spirol.com

Spirol West645 East Harrison Street, Suite 100Corona, California 92879-1347Tel.] 909.273.5900 or 800.776.9528Fax] 909.273.5907www.spirolwest.com

Spirol International Corporation Shim Division321 Remington Road

Stow, Ohio 44224Tel.] 330.920.3655 Fax] 330.920.3659www.spirol.com

Ascutney Metal Products2637 US Route 5 NorthWindsor, Vermont 05089Tel.] 802.674.6721 Fax] 802.674.6121www.ascutneymp.com

Spirol Distribution30 Rock AvenueDanielson, Connecticut 06239Tel.] 800.321.4679 Fax] 860.774.0487www.spirol.com(For Distributor Customers)

Spirol Industries, Ltd.

3103 St. Etienne BoulevardWindsor, OntarioCanada N8W 5B1Tel.] 519.974.3334 Fax] 519.974.6550www.spirolcanada.com

Spirol Mxico, S.A. de C.V.Carretera a Laredo KM 16.5 Interior ECol. Moises SaenzApodaca, N.L. Mxico C.P. 66605Tel.] (81) 8385 4390 Fax] (81) 8385 4391www.spirol.com.mx

Spirol Industries, Ltd.Princewood RoadCorby, NorthantsEngland NN17 4ETTel.] 44 (0) 1536 444800Fax] 44 (0) 1536 203415(For Distributor Customers)Tel.] 44 (0) 8003 890034www.spirol.co.uk

Spirol SASRue Henri Roi TanguyZ.A. Les Naux51450 Btheny FranceTel.] 33 (0)3 26 36 31 42Fax] 33 (0)3 26 09 19 76www.spirol.com

I N T E R N A T I O N A L

ISO9001:2000 Certificate No. 11168

QS-9000 Certifica te No. 5981 QS-9000:1998FM 64050

ISO 9002 Certificate No. Q 09419BS 5750

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