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. JUNE 2017 Page 1 of 2 NAVISTAR, INC. Material, Parts, and Process Specifications (
2、MPAPS) NUMBER: MPAPS S-F-17.101-GS/PL Former Designation: ESP-F-17.101-GS TITLE: Flat Round Hole Washers for Rivets English Series (Noun Code 9720) CURRENT REV No.: 1706 DATE: June 2017 WRITTEN/EDITED BY: A. Bourdon APPROVED BY: R. Goluch SUPERSEDES: 1506 - June 2015 PRINTED COPIES OF THIS DOCUMENT
3、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 and to dete
4、rmine the applicability of regulatory limits prior to use. 1.0 GENERAL: This standard covers the dimensions and physical properties of Rivet Washers and conforms to standard Rivet sizes. A riveting (burr) washer is a small plain washer which is assembled with a small rivet before peening the end to
5、provide a large area of contact on the part. 2.0 MATERIAL: Steel (STL); 1010 or 1020; commercial Wrought Copper (COP); or equivalent as indicated by part number. 3.0 FINISHES: As designated by part number, washers will be furnished plain, plated or coated in accordance with the MPAPS and class liste
6、d below: Zinc Trivalent (ZN6A) MPAPS G-20, Class 6A. Phosphate Coating (PHC) MPAPS G-1, Class B1. 4.0 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. 5.0 THICK
7、NESS: In accordance with Manufacturers Standard Gage. 6.0 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 “Approv
8、ed“ part list only. Sizes: 1/8, 3/16, 3 or 1/4, 5/16 and 3/8 Material: Steel Finishes: Plain (PLN), Zinc Trivalent (ZN6A), and Phosphate Coated (PHC) 7.0 DEFECTS: Washers must be free from burrs, loose scale, sharp edges and all other defects that might affect their serviceability. NUMBER: MPAPS S-F
9、-17.101-GS/PL TITLE: Flat Round Hole Washers for Rivets REVISION: 1706 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. JUNE 2017 P
10、age 2 of 2 Rivet Size ID OD Thickness USS Gage Max Min * 12 (.109) .125 .375 20 (.036) .041 .031 1/8 (.125) .141 .438 18 (.048) .055 .041 * 9 (.148) .156 .438 18 (.048) .055 .041 * 8 (.165) .172 .500 18 (.048) .055 .041 3/16 (.188) .203 .500 18 (.048) .055 .041 * 6 (.203) .219 .500 18 (.048) .055 .0
11、41 * 5 (.220) .234 .625 18 (.048) .055 .041 * 4 (.238) .250 .625 18 (.048) .055 .041 3 or 1/4 (.259) .266 .625 16 (.060) .075 .045 * 2 (.284) .297 .625 16 (.060) .075 .045 * 1 (.300) .312 .625 16 (.060) .075 .045 5/16 (.312) .328 .750 16 (.060) .075 .045 * 11/32 (.344) .359 .750 16 (.060) .075 .045
12、3/8 (.375) .391 .875 16 (.060) .075 .045 * NON-PREFERRED Acceptable Tolerance for ID: +.008” / -.005” 8.0 PART LIST: 8.1 Approved: Inside Diameter Outside Diameter Minimum Thickness Finish Material Part Number .203 .500 .041 ZN6A STL 16547R1 9.0 TECHNICAL INFORMATION: For further information related
13、 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:/ REVISION HISTORY Revision Level Change Approved by Date Approved 1706 Added tolerance for ID dimension R. Goluch 6/21/2017
