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. 2017 by Navistar, Inc. APRIL 2017 Page 1 of 4 NAVISTAR, INC. Material, Parts, and Process Specifications
2、(MPAPS) NUMBER: MPAPS S-J-7.101-GS/PL Former Designation: ESP-J-7.101-GS TITLE: Clevis Pins English Series (Noun Code 6200) CURRENT REV No.: 1704 DATE: Apr. 2017 WRITTEN/EDITED BY: A. Bourdon APPROVED BY: R. Goluch SUPERSEDES: 1506 - June 2015 PRINTED COPIES OF THIS DOCUMENT MUST BE VERIFIED FOR CUR
3、RENT 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 practices and to determine the applicability
4、of regulatory limits prior to use. 1.0 GENERAL: This standard conforms essentially with the ANSI B18.8.1 standard for clevis pins. The clevis pins specified are intended for use in conjunction with clevises and rod end eyes in general industrial applications. The cotter pins specified are intended f
5、or use with clevis pins contained herein and in pinned bolt and nut assemblies or other types of free-fitting pinned assemblies in general industrial applications. The inclusion of dimensional data in this standard is not intended to imply that all of the products described are stock production size
6、s. 2.0 POLICY FOR SELECTING PARTS FOR NEW DESIGN: Approved parts are so designated to reduce variety of parts and assure maximum availability, interchangeability and cost savings in volume buying. For new design, parts shall be selected from “Approved“ part list only. Material: Hard Finishes: Plain
7、(PLN), Zinc Trivalent (ZN6A) Phosphate Coated (PHC) Length for Standard Clevises: See chart below PREFERRED LENGTHS Diameter Length Diameter Length 3/16 .580 1/2 1.360 1/4 .770 5/8 1.610 5/16 .940 3/4 1.910 3/8 1.060 7/8 2.160 7/16 1.190 1 2.410 3.0 SERVICE PARTS SUBSTITUTION POLICY: In the event th
8、at engineering does not indicate a “Do not substitute“ in engineering specifications, the following substitutions may be implemented in service. This policy is the result of a proposal circulated April 20, 1981, and subsequently approved by engineering departments worldwide. NUMBER: MPAPS S-J-7.101-
9、GS/PL TITLE: Clevis Pins REVISION: 1704 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. 2017 by Navistar, Inc. APRIL 2017 Page 2 of 4 Clevis Pins To be R
10、eplaced Service Replacement Plain (PLN) Finish Zinc Trivalent (ZN6A) or Phosphate Coating (PHC) (if ZN6A equivalent is not set up for service.) 4.0 TOP OF HEAD: The top of the head will be flat and either charnfered or rounded at outer periphery. 5.0 BEARING SURFACE: The bearing surface of the head
11、will be flat and square with the axis of pin (determined over a distance from under the head equivalent to 1.5 times the basic pin diameter) within 2 degrees. 6.0 ECCENTRICITY: The head of pin will not be eccentric with axis of the shank of pin by an amount equal to more than 6 per cent of the maxim
12、um head diameter or 0.010 in., whichever is greater. Eccentricity will be defined as being one-half the full or total indicator reading. 7.0 LENGTH INCREMENTS: The tabulated lengths apply to pins intended for use with standard clevises, without spacers. When required, it is recommended that other pi
13、n lengths be limited. wherever possible, to nominal lengths in 0.06 in. increments. 8.0 LOCATION: The hole location on all clevis pins will be specified as the distance, measured parallel to the axis of pin, from the bearing surface of the head to the center line of the hole. For pins having lengths
14、 other than those tabulated, the limits for “F“ will be determined by subtracting reference dimension “J“ from the maximum and minimum pin length “C.“ 9.0 ALIGNMENT AND ANGULARITY: The axis of hole through shank will not be offset from the axis of pin by more than 0.010 in. for the 3/16 and 1/4 in.
15、nominal pin sizes and 0.020 in. for all larger pin sizes, and will be square with the axis of pin within 2 degrees. 10.0 COUNTERSINK: The hole will be countersunk or edges otherwise relieved at both ends to remove all burrs. 11.0 MATERIAL AND HEAT TREATMENT: Clevis pins will be made from be fully ki
16、lled, fine grain steel, code 0-100 or 0-201 MPAPS A-0 Part II, and will be case hardened per the MPAPS and class listed below: Nominal Pin Diameter Total Case Depth Specification And Classification 3/16 - 3/4 0.002 - 0.020 MPAPS A-40, Class 1A, 1B, 2A, 2B or 3 7/8 - 1-1/4 0.010 - 0.020 MPAPS A-40, C
17、lass 3 12.0 FINISHES: As designated by part number, pins will be furnished plain, plated or coated in accordance with the MPAPS and class listed below: Zinc Trivalent (ZN6A) MPAPS G-20, Class 6A. Phosphate Coating (PHC) MPAPS G-1, Class B-1. Where electroplating of carbon steel parts is such that it
18、 might induce hydrogen embrittlement, pins will be baked or treated in such a manner as to be free of such embrittlement. NUMBER: MPAPS S-J-7.101-GS/PL TITLE: Clevis Pins REVISION: 1704 This document is restricted and may not be sent outside Navistar, Inc. or reproduced without permission from Corpo
19、rate Technical Standards. Suppliers are required to assume all patent liability. 2017 by Navistar, Inc. APRIL 2017 Page 3 of 4 13.0 RESTRICTED CHEMICAL SUBSTANCES: Effective January 1, 2007, all product supplied to the requirements of this specification must comply with the requirements of the MPAPS
20、 B-50 specification. 14.0 WORKMANSHIP: Pins will not contain imperfections which affect usability or serviceability such as excessive amounts of buffs, seams, laps, loose scale or sharp edges. 15.0 DIMENSIONS: * Sizes not covered by ANSI B-18.8.1 standard. Standard clevises and pins designed for sta
21、ndard clevis do not presently exist. Notes: 1. Lengths tabulated are intended for use with standard clevises, without spacers. Where required, it is recommended that other pin lengths limited, if possible, to nominal length increments of .06 inch. 2. Basic “J” dimension (distance from center line of
22、 hole to end pin) is specified for calculating preferred or standard hole location from underside of head on pins of lengths not tabulated. 3. Reference dimension provided for convenience in design layout and is not subject inspections. Nominal A C D E F G J K L N Recom- Size Shank Diameter Head Dia
23、meter Head to End to Head Point Length Head to Edge of Hole Ref. ended or Basic Pin Head Center Hole Diameter Center Cham- Cotter Pin Pin Length Height of Hole Ref. fer Nominal Diameter Max Min Basic Max Min Max Min Basic Max Min Basic t .010 Max Min Max Min Size 3/16 .186 .181 .580 .070 .050 .320 .
24、300 .484 .088 .073 .090 .020 .055 .035 .548 .520 1/16 .062 1/4 .248 .243 .770 .100 .080 .380 .360 .672 .088 .073 .090 .030 .055 .035 .736 .708 1/16 .062 5/16 .311 .306 .940 .100 .080 .440 .420 .812 .119 .104 .120 .030 .071 .049 .892 .864 3/32 .093 3/8 .373 .368 1.060 .130 .110 .510 .490 .938 .119 .1
25、04 .120 .030 .071 .049 1.018 .990 3/32 .093 7/16 .436 .431 1.190 .160 .140 .570 .550 1.062 .119 .104 .120 .040 .071 .049 1.142 1.114 3/32 .093 1/2 .496 .491 1.360 .160 .140 .630 .610 1.203 .151 .136 .150 .040 .089 .063 1.298 1.271 1/8 .125 5/8 .621 .616 1.610 .210 .190 .820 .800 1.453 .151 .136 .150
26、 .060 .089 .063 1.548 1.521 1/8 .125 3/4 .746 .741 1.910 .260 .240 .940 .920 1.719 .182 .167 .180 .070 .110 .076 1.830 1.820 5/32 .156 7/8 .871 .866 2.160 .320 .300 1.040 1.020 1.969 .182 .167 .180 .090 .110 .076 2.080 2.052 5/32 .156 1 .996 .991 2.410 .350 .330 1.190 1.170 2.219 .182 .167 .180 .010
27、 .110 .076 2.330 2.302 5/32 .156 * 1- 1/8 1.125 1.115 * .350 .330 1.250 1.220 y, .276 .261 .390 .100 .250 .216 * * 1/4 .250 *1- 1/4 1.250 1.240 * .350 .330 1.500 1.470 * 276 .261 .390 .100 .250 .216 * * 1/5 .250 NUMBER: MPAPS S-J-7.101-GS/PL TITLE: Clevis Pins REVISION: 1704 This document is restric
28、ted and may not be sent outside Navistar, Inc. or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2017 by Navistar, Inc. APRIL 2017 Page 4 of 4 16.0 PART LIST: 16.1 Approved: Nominal Size Length F Head to Hole Finish Material P
29、art Number 3/16 .580 .484 ZN6A HARD 138082 1/4 .770 .672 PLN HARD 103494 1/4 .770 .672 ZN6A HARD 138083 5/16 .940 .812 PLN HARD 103495 3/8 1.060 .938 ZN6A HARD 138084 7/16 1.190 1.062 ZN6A HARD 138085 1/2 1.360 1.203 ZN6A HARD 138086 1/4 .625 .500 PLN HARD 53368VA 1/4 .625 .524 ZN6A HARD 40381R1 5/1
30、6 .719 .562 ZN6A HARD 24660R1 3/8 2.406 2.250 ZN6A HARD 21006R1 7/16 2.781 2.594 PLN HARD 16883D 1/2 1.500 1.281 PLN HARD 21853H 1/2 1.500 1.345 ZN6A HARD 40366R1 1/2 1.594 1.344 PLN HARD 33557V 1/2 1.688 1.469 ZN6A HARD 21263R1 7/16 4.000 3.700 ZN6A HARD 27883R1 17.0 TECHNICAL INFORMATION: For furt
31、her 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. North Avenue Melrose Park, IL 60160 E-mail: MaterialsEngineeringN IHS Markit Inc. 15 Inverness Way East Englewood CO 80112-5776 Phone: 1-800-854-7179 E-mail: AutomotiveIHS.com Website: http:/ A.0 GENERAL INFORMATION REVISION HISTORY Revision Level Change Approved by Date Approved 1704 Changed material code from 0-115 to fully-killed, fine-grain 0-100 or 0-201 R. Goluch 04/28/2017
