1、This document is restricted and may not be sent outside Navistar, Inc. or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2018 by Navistar, Inc. MARCH2018 Page 1 of 8 NAVISTAR, INC. Material, Parts, and Process Specifications (
2、MPAPS) NUMBER: MPAPS S-J-6.101-GS/PL Former Designation: ESP-J-6.101-GS TITLE: Spring Pins - slotted spring pins and coiled spring pins - English Series (Noun Code 6200) CURRENT REV No.: 1803 DATE: Mar. 2018 WRITTEN/EDITED BY: A. Bourdon APPROVED BY: R. Goluch SUPERSEDES: 1506 June 2015 PRINTED COPI
3、ES OF THIS DOCUMENT MUST BE VERIFIED FOR CURRENT REVISION This specification may involve hazardous materials, equipment, and procedures. This specification does not purport to address all of the safety issues associated with its use. The user is responsible to consult appropriate safety and health p
4、ractices and to determine the applicability of regulatory limits prior to use. 1.0 GENERAL: This specification covers performance, dimensions, physical properties and method of testing both slotted and coiled spring pins. It conforms essentially with SAE J496 covering “Spring Type Straight Pins.“ 2.
5、0 CONTENTS: 3.0 TYPES AND SERIES: Spring pins are available in two Types and three Series. Slotted - Heavy Series (Non-Preferred) For high static shear loads in higher strength materials. Coiled - Heavy Series For high static shear loads in higher strength materials. Medium Series For medium static
6、shear loads with higher shock and vibration loads. Light Series (Non-Preferred) Recommended only for low shear loading in soft or brittle materials. Page General 1 Types and Series 1 Length 2 Material and Hardness 2 Performance 2 Finishes 3 Restricted Chemical Substances 3 Policy for Selecting Parts
7、 for New Design 3 Defects 4 Slotted Spring Pins 5 Coiled Spring Pins 6 Technical Information 8 NUMBER: MPAPS S-J-6.101-GS/PL TITLE: Spring Pins - slotted spring pins and coiled spring pins REVISION: 1803 This document is restricted and may not be sent outside Navistar, Inc. or reproduced without per
8、mission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2018 by Navistar, Inc. MARCH 2018 Page 2 of 8 4.0 LENGTH: The tolerance on length for coiled type spring pins will +.010 inch for sizes up to and including 5/16 inch; and +.015 inch for sizes larger th
9、an 5/16 inch. The tolerance on length for slotted type spring pins will be in accordance with the following tabulation: Length Range 3/16 to 1 inclusive Over 1 to 2 inclusive Over 2 to 3 inclusive Over 3 to 4 inclusive Over 4 inches Tolerance On Length .015 .020 .025 0.30 .035 5.0 MATERIAL AND HARDN
10、ESS: Hardness will be tested in the following manner: For slotted pins the readings will be taken near the center of a longitudinal flat ground on the pin at right angles to the slot. Coiled pins will be ground or cut in half along the longitudinal axis and the hardness readings will be taken on the
11、 inside surface of the outer half coil. Table following designates materials and the proper Rockwell scale to be used for the various wall thickness ranges. Wall Thickness Range Over Over Over Over .001 to .010 .010 to .025 .025 to .050 .050 to .094 Rockwell Scale Dph * Tukon 15N A C Pin Type Materi
12、al Hardness Reading Slotted SAE-1070-1095 Steel 458-562 83.6-87 73.6-78 46-53 AISI 420 Corrosion Resistant Steel 413-545 82 -86.6 72 -77 43-52 Coiled SAE-1070-1095 Steel 393-515 80.4-85.5 70.4-75.9 40-50 AISI 420 Corrosion Resistant Steel 393-515 80.4-85.5 70.4-75.9 40-50 AISI 302 Nickel Stainless S
13、teel - - - - *Diamond pyramidal hardness 6.0 PERFORMANCE: Spring pins will assemble and disassemble with light to moderate force when used with the recommended hole sizes without significant deformation to either pins or holes. Assembled pins will withstand the minimum double shear loads as specifie
14、d in the dimensional tables. Spring pins will withstand the minimum double shear loads specified in the dimensional tables when tested in accordance with the following procedure. The shear test will be performed in a fixture in which the pin support members and the member for applying the load will
15、have holes of a diameter conforming to the recommended hole size for the pins being tested and will have a Rockwell hardness of C58 or equivalent. The clearance between the supporting members and the loading member will not exceed .005 inch and the shear plane will be at least one diameter away from
16、 each end of the pin. Pins will be located so that the slot is approximately at right angles to the line of application of the load. The speed of load application will not exceed 1/2 inch per minute. Pins too short to be tested in double shear will be tested by shearing two pins simultaneously in si
17、ngle shear. Spring pins which have been tested for shear strength will show a ductile shear without longitudinal cracks. Typical spring pin shear test fixtures are illustrated below. NUMBER: MPAPS S-J-6.101-GS/PL TITLE: Spring Pins - slotted spring pins and coiled spring pins REVISION: 1803 This doc
18、ument is restricted and may not be sent outside Navistar, Inc. or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2018 by Navistar, Inc. MARCH 2018 Page 3 of 8 TYPICAL SPRING PIN SHEAR TEST FIXTURES 7.0 FINISHES: As designated
19、by part number, pins will be furnished plain, plated or coated in accordance with MPAPS and class listed below: Zinc Trivalent (ZN6A) on steel MPAPS G-20, Class 6A. Phosphate (PHC) Coating MPAPS G-1, Class Z-1. Where electroplating of carbon steel parts is such that it might induce hydrogen embrittl
20、ement, spring pins will be baked or treated in such a manner as to be free of such embrittlement. 8.0 RESTRICTED CHEMICAL SUBSTANCES: Effective January 1, 2007, all product supplied to the requirements of this specification must comply with the requirements of the MPAPS B-50 specification. 9.0 POLIC
21、Y FOR SELECTING PARTS FOR NEW DESIGN: For new design, parts shall be selected from “Approved“ part list only. Types: Coiled - Heavy and Medium Series Material: 1070 - 1095 carbon steel Finishes: Plain Sizes and Lengths: See table NUMBER: MPAPS S-J-6.101-GS/PL TITLE: Spring Pins - slotted spring pins
22、 and coiled spring pins REVISION: 1803 This document is restricted and may not be sent outside Navistar, Inc. or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2018 by Navistar, Inc. MARCH 2018 Page 4 of 8 10.0 DEFECTS: Spring
23、 pins will be free from burrs loose scale, seams, notches, sharp edges or other defects which might affect their serviceability. Nominal Nominal Pin Size Pin Length 1/16 3/32 1/8 5/32 3/16 1/4 5/16 3/8 1/2 3/16 X 1/4 X X 5/16 X X 3/8 X X X 7/16 X X X X 1/2 X X X X X 9/16 X X X X X 5/8 X X X X X X 11
24、/16 X X X X X X 3/4 X X X X X X X X 13/16 X X X X X X X 7/8 X X X X X X X 15/16 X X X X X X X 1 X X X X X X X X 1-1/8 X X X X X X 1-1/4 X X X X X X X X 1-3/8 X X X X X X 1-1/2 X X X X X X X X 1-5/8 X X X X X 1-3/4 X X X X X X X 1-7/8 X X X X X 2 X X X X X X X 2-1/4 X X X X X X 2-1/2 X X X X X X 2-3/
25、4 X X X X 3 X X X X 3-1/4 X X X X 3-1/2 X X X X 3-3/4 X X X 4 X X X NUMBER: MPAPS S-J-6.101-GS/PL TITLE: Spring Pins - slotted spring pins and coiled spring pins REVISION: 1803 This document is restricted and may not be sent outside Navistar, Inc. or reproduced without permission from Corporate Tech
26、nical Standards. Suppliers are required to assume all patent liability. 2018 by Navistar, Inc. MARCH 2018 Page 5 of 8 11.0 SLOTTED SPRING PINS: Dimensions in inches: Nominal Size 1/16 3/32 1/8 5/32 3/16 1/4 5/16 3/8 1/2 A Diameter, Max * .069 .103 .135 .167 .199 .264 .328 .392 .521 Diameter, Min* .0
27、66 .099 .131 .162 .194 .258 .321 .385 .513 E Chamfer Diameter, Max .059 .091 .122 .151 .182 .245 .306 .368 .485 C Chamfer Length, Max .028 .038 .044 .048 .055 .065 .080 .095 .110 D Stock Thickness, Nom .012 .022 .028 .032 .040 .048 .062 .077 .094 Recm Hole Size, Min .062 .094 .125 .156 .187 .250 .31
28、2 .375 .500 Recm Hole Size, Max .065 .097 .129 .160 .192 .256 .318 .382 .510 Minimum Double Shear Strength (Lbs) # 425 1000 2100 3000 4400 7700 11500 17600 25800 * Maximum diameter will be checked by “GO“ Ring Gages. * Minimum diameter will be the average of the A1, A2, A3 diameters. # Double Shear
29、strength specified applies to pins made from SAE 1070 to 1095 carbon steel and AISI 420 corrosion resistant steel. 11.1 Non-Recommended Sizes: Dimensions in inches: Nominal Size 5/64 7/64 9/64 7/32 7/16 A Diameter, Maximum * .086 .118 .149 .232 .456 Diameter, Minimum * .083 .113 .145 .226 .448 E Cha
30、mfer Diameter, Max .075 .106 .137 .214 .430 C Chamfer Length, Max .032 .038 .044 .065 .095 D Stock Thickness, Nom .018 .022 .028 .048 .077 Recm Hole Size, Min .078 .109 .140 .219 .437 Recm Hole Size, Max .081 .112 .144 .224 .445 Minimum Double Shear Strength (Lbs) # 650 1410 2200 5700 20000 * Maximu
31、m diameter will be checked by “GO“ Ring Gages. * Minimum diameter will be the average of the A1, A2, A3 diameters. # Double Shear strength specified applies to pins made from SAE 1070 to 1095 carbon steel and AISI 420 corrosion resistant steel. NUMBER: MPAPS S-J-6.101-GS/PL TITLE: Spring Pins - slot
32、ted spring pins and coiled spring pins REVISION: 1803 This document is restricted and may not be sent outside Navistar, Inc. or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2018 by Navistar, Inc. MARCH 2018 Page 6 of 8 11.2
33、Part List: 11.2.1 Approved: Nominal Part Size Length Series Finish Material Number 1/8 1/4 HEAVY PHC 1070 20796R1 1/8 3/8 HEAVY PLN 1070 17143R1 1/8 13/16 HEAVY PLN 1070 17078R1 1/8 1 1/2 HEAVY PLN 1070 18530R1 5/32 3/4 HEAVY PLN 1070 17157R1 3/16 1/2 HEAVY PLN 1070 17136R1 3/16 1 1/8 HEAVY PLN 1070
34、 455182R1 3/16 1 3/8 HEAVY PLN 1070 17348R1 1/4 3/4 HEAVY PLN 1070 18556R1 1/4 1 HEAVY PLN 1070 17132R1 1/4 1 1/4 HEAVY PLN 1070 576485R1 1/4 1 3/8 HEAVY PLN 1070 17053R1 1/4 1 3/8 HEAVY ZN6A 1070 21996R1 1/4 1 1/2 HEAVY ZN6A 1070 21649R1 1/4 2 HEAVY ZN6A 1070 21832R1 1/4 2 1/4 HEAVY ZN6A 1070 22981
35、R1 1/4 1 1/8 HEAVY PLN 1070 622258R1 5/16 1 1/4 HEAVY PLN 1070 17244R1 3/8 5/8 HEAVY PLN 1070 19835R1 3/8 15/16 HEAVY PLN 1070 17235R1 3/8 1 HEAVY PLN 1070 19269R1 3/8 1 HEAVY ZN6A 1070 23279R1 3/8 1 1/4 HEAVY PLN 1070 18265R1 3/8 1 3/4 HEAVY PLN 1070 17098R1 3/8 3/4 HEAVY PLN 1070 19328R1 7/16 3/4
36、HEAVY PLN 1070 19387R1 7/16 1 1/4 HEAVY PLN 1070 19242R1 1/2 1 1/4 HEAVY PLN 1070 17158R1 1/2 1 1/4 HEAVY ZN6A 1070 21998R1 5/32 7/8 HEAVY PLN 1070 17047R1 * 1070 designation includes 1070-1095 range. 12.0 COILED SPRING PINS: NUMBER: MPAPS S-J-6.101-GS/PL TITLE: Spring Pins - slotted spring pins and
37、 coiled spring pins REVISION: 1803 This document is restricted and may not be sent outside Navistar, Inc. or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2018 by Navistar, Inc. MARCH 2018 Page 7 of 8 12.1 Dimensions: Dimensi
38、ons in inches: Recom- HEAVY DUTY MEDIUM DUTY mended D A C A C Drilled Hole Min Double Stock Min Double Stock Nominal Decimal Tolerance Shear in lbs Thick- Shear in lbs Thick- 1070 ness 1070 Ness Sizes Dim Plus Minus Max Min Max 302 420 Nom Min Max 302 420 Nom * 1/32 .031 .001 .000 .029 .033 .035 60
39、# 75 .0025 * .039 .039 .001 .000 .037 .041 .044 100 # 120 .003 * 3/64 .047 .001 .001 .045 .049 .052 140 # 170 .004 * .052 .052 .001 .001 .050 .054 .057 190 # 230 .004 1/16 .062 .003 .001 .059 .066 .070 350 450 .007 .067 .072 250 300 .005 * 5/64 .078 .003 .001 .075 .082 .086 550 700 .008 .083 .088 40
40、0 475 .006 3/32 .094 .003 .001 .091 .098 .103 800 1000 .010 .099 .105 550 700 .007 * 7/64 .109 .003 .001 .106 .113 .118 1125 1400 .012 .114 .120 750 950 .008 1/8 .125 .004 .001 .121 .130 .136 1700 2100 .014 .131 .138 1000 1250 .010 5/32 .156 .004 .001 .152 .161 .168 2400 3000 .017 .163 .171 1550 192
41、5 .012 3/16 .187 .005 .002 .182 .194 .202 3500 4400 .020 .196 .205 2250 2800 .015 * 7/32 .219 .005 .002 .214 .226 .235 4600 5700 .024 .228 .238 3000 3800 .017 1/4 .250 .006 .003 .243 .258 .268 6200 7700 .028 .260 .271 4000 5000 .020 5/16 .312 .007 .004 .304 .322 .334 9200 11500 .035 .324 .337 6200 7
42、700 .024 3/8 .375 .008 .005 .366 .386 .400 14000 17600 .042 .388 .403 9000 11200 .030 * 7/16 .437 .009 .006 .427 .450 .466 18000 22500 .047 .452 .469 13000 15200 .036 1/2 .500 .010 .007 .488 .514 .532 24000 33000 .055 .516 .535 16000 20000 .042 Alloy Alloy Steel Steel * 5/8 .625 .010 .007 .613 .640
43、.658 37000 46000 .070 .642 .661 25000 31000 .052 * 3/4 .750 .010 .007 .738 .766 .784 53000 66000 .080 .768 .787 36000 45000 .060 * Non-Preferred # 420 SST Only Nominal Sizes Decimal Dim Recom- D LIGHT DUTY mended A C Stock Thick- ness Nom Drilled Hole Min Double Tolerance Shear in lbs Plus Minus Max
44、 Min Max 302 1070 420 1/16 .062 .003 .001 .059 .067 .073 135 170 .003 5/64 .078 .003 .001 .075 .083 .089 225 275 .004 3/32 .094 .003 .001 .091 .099 .106 300 375 .005 7/64 .109 .003 .001 .106 .114 .121 425 525 .006 1/8 .125 .004 .001 .121 .131 .139 550 675 .007 5/32 .156 .004 .001 .152 .163 .172 875
45、1100 .008 3/16 .187 .005 .002 .182 .196 .207 1200 1500 .010 7/32 .219 .005 .002 .214 .228 .240 1700 2100 .012 1/4 .250 .006 .003 .243 .260 .273 2200 2700 .014 5/16 .312 .007 .004 .304 .324 .339 3500 4400 .017 3/8 .375 .008 .005 .366 .388 .405 5000 6000 .020 7/16 .437 .009 .006 .427 .452 .471 6700 84
46、00 .024 1/2 .500 .010 .007 .488 .516 .537 8800 11000 .028 NUMBER: MPAPS S-J-6.101-GS/PL TITLE: Spring Pins - slotted spring pins and coiled spring pins REVISION: 1803 This document is restricted and may not be sent outside Navistar, Inc. or reproduced without permission from Corporate Technical Stan
47、dards. Suppliers are required to assume all patent liability. 2018 by Navistar, Inc. MARCH 2018 Page 8 of 8 12.2 Part List: 12.2.1 Approved: Nominal Size Length Series Finish Material Part Number 1/8 5/8 MED PLN 1070 365704R1 3/16 1/2 HEAVY PLN 1070 19756R1 1/4 1 HEAVY PLN 1070 617057R1 1/4 1 1/2 ME
48、D PLN 1070 20122R1 5/16 1 HEAVY ZN6A 1070 4115774C1 3/8 1 MED PLN 1070 40032R1 3/8 3 1/2 HEAVY PLN 1070 21497R1 1/4 1 HEAVY ZN6A 1070 3724769C1 1/4 2 3/4 LIGHT ZN6A 1070 23850R1 *1070 designation includes 1070-1095 range. 13.0 TECHNICAL INFORMATION: For further information related to the technical content of this specification, contact: Suppliers may purchase controlled copies of this specification by contacting: Materials Engineering and Technology Dept. 10400 W.
