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. 2015 by Navistar, Inc. JUNE 2015 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.: 1506 DATE: June 2015 WRITTEN/EDITED BY: Materials Engineering APPROVED BY: Materials Engineering SUPERSEDES: ESP-J-7.101-GS - August 2006 PRINTED COPIES OF THIS
3、 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 practices a
4、nd to determine the applicability of regulatory limits prior to use. Change Notice: Changed to New MPAPS format; Combined GS, PP, NPP. 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 cl
5、evises and rod end eyes in general industrial applications. The cotter pins specified are intended for 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
6、 this standard is not intended to imply that all of the products described are stock production sizes. 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
7、 new design, parts shall be selected from “Approved“ part list only. Material: Hard Finishes: Plain (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
8、 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 that 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 Apri
9、l 20, 1981, and subsequently approved by engineering departments worldwide. NUMBER: MPAPS S-J-7.101-GS/PL TITLE: Clevis Pins REVISION: 1506 This document is restricted and may not be sent outside Navistar, Inc. or reproduced without permission from Corporate Technical Standards. Suppliers are requir
10、ed to assume all patent liability. 2015 by Navistar, Inc. JUNE 2015 Page 2 of 4 Clevis Pins To be Replaced 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 eit
11、her charnfered or rounded at outer periphery. 5.0 BEARING SURFACE: The bearing surface of the head 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
12、 be eccentric with axis of the shank of pin by an amount equal to more than 6 per cent of the maximum 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 inten
13、ded for use with standard clevises, without spacers. When required, it is recommended that other pin 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 o
14、f pin, from the bearing surface of the head to the center line of the hole. For pins having lengths 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 thr
15、ough shank will not be offset from the axis of pin by more than 0.010 in. for the 3/16 and 1/4 in. 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 en
16、ds to remove all burrs. 11.0 MATERIAL AND HEAT TREATMENT: Clevis pins will be made from steel, code 0-115N 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 CEMS A-40, Cla
17、ss 1A, 1B, 2A, 2B or 3 7/8 - 1-1/4 0.010 - 0.020 CEMS A-40, Class 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-
18、1. Where electroplating of carbon steel parts is such that it 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: 1506 This document is restricted and may not be sent outsi
19、de Navistar, Inc. or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2015 by Navistar, Inc. JUNE 2015 Page 3 of 4 13.0 RESTRICTED CHEMICAL SUBSTANCES: Effective January 1, 2007, all product supplied to the requirements of this
20、specification must comply with the requirements of the MPAPS 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-
21、18.8.1 standard. Standard clevises and pins designed for standard 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 .0
22、6 inch. 2. Basic “J” dimension (distance from center line of 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. Nom
23、inal A C D E F G J K L N Recom- Size Shank Diameter Head Diameter 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 .0
24、10 Max Min Max Min Size 3/16 .186 .181 .580 .070 .050 .320 .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/
25、32 .093 3/8 .373 .368 1.060 .130 .110 .510 .490 .938 .119 .104 .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
26、5/8 .621 .616 1.610 .210 .190 .820 .800 1.453 .151 .136 .150 .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 .99
27、6 .991 2.410 .350 .330 1.190 1.170 2.219 .182 .167 .180 .010 .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/P
28、L TITLE: Clevis Pins REVISION: 1506 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. 2015 by Navistar, Inc. JUNE 2015 Page 4 of 4 16.0 PART LIST: 16.1 App
29、roved: Nominal Size Length F Head to Hole Finish Material Part 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 .62
30、5 .500 PLN HARD 53368VA 1/4 .625 .524 ZN6A HARD 40381R1 5/16 .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
31、.700 ZN6A HARD 27883R1 17.0 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. North Avenue Melrose Park, IL 60160 E-mail: MaterialsEngineeringN IHS Global Inc. 15 Inverness Way East Englewood CO 80112-5776 Phone: 1-800-854-7179 E-mail: AutomotiveIHS.com Website: http:/
