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 5 NAVISTAR, INC. Material, Parts, and Process Specifications (
2、MPAPS) NUMBER: MPAPS S-FM-16.101-GS/PL Former Designation: ESP-FM-16.101-GS TITLE: Washers - Metric Series CURRENT REV No.: 1506 DATE: June 2015 WRITTEN/EDITED BY: Materials Engineering APPROVED BY: Materials Engineering SUPERSEDES: ESP-FM-16.101-GS - August 2006 PRINTED COPIES OF THIS DOCUMENT MUST
3、 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 determin
4、e the applicability of regulatory limits prior to use. Change Notice: Changed to New MPAPS format; Combined GS, GI, PP, NPP. 1.0 GENERAL: Implementation of this standard must be in accordance with the policies and procedures outlined in MPAPS S-A-0.101. There may also be divisional supplemental inst
5、ructions in regard to use of metric standards that should be taken into account. Some segments of the ISO and national standards encompassed by this general specification differ. In recognition of these differences, the sizes and tolerance ranges used were established in an effort to enable the use
6、of commercially available items, dimensionally interchangeable worldwide. This specification contains the essentials of the following standards: International Organization for Standardization: ISO R887 Association of French Standards: NF E27-611 British Standards Institute: BS 4320 German Institute
7、of Standardization: DIN 125 Standards Association of Australia: AS 1237 The inclusion of dimensional data is not intended to imply that all the washers described are stock production sizes. Inch dimensioned standard carbon steel washers may be found in MPAPS S-F-15.101-GS/PL and hardened washers in
8、MPAPS S-F-16.101-GS/PL. 2.0 CONTENTS: Page General 1 Design Consideration 2 Metric-Inch Related Sizes 2 Method of Designation 2 Policy for Selecting Parts for New Design 2 Miscellaneous Dimension 3 Material 3 Finishes 3 NUMBER: MPAPS S-FM-16.101-GS/PL TITLE: Washers REVISION: 1506 This document is r
9、estricted 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 2 of 5 3.0 DESIGN CONSIDERATION: Carbon steel washers are intended for general purpos
10、e applications to spread bearing load and to provide a uniform bearing surface. Hardened washers are intended for use in high strength joints to minimize embedding, to aid torquing, and to bridge large clearance holes and slots. 4.0 METRIC-INCH RELATED SIZES: During the inch to metric design transit
11、ion period, the following chart of related sizes can be used for reference. This information is not to be considered as a recommendation for substitutions but only as a means of determining approximate equivalents. Washers Nominal Bolt or Screw Size Metric Series (mm) Inch Series 2 5/64 3 1/8 4 5/32
12、 5 13/64 6 3/ 16 8 5/16 10 3/8 12 1/2 16 5/8 20 3/4 24 15/16 30 1- 3/16 36 1- 13/32 42 1- 21/32 45 1- 3/4 48 1- 27/32 52 2- 1/16 5.0 METHOD OF DESIGNATION: Washers will be designated on purchase orders by inside diameter, outside diameter, thickness, word description, material, finish and part numbe
13、r. 5.5 x 10 x 1 mm, Washer, Type A, CST, ZN6A, Part Number 10.8 x 21 x 2 mm, Washer, Type B, HTS, PHC, Part Number 6.0 POLICY FOR SELECTING PARTS FOR NEW DESIGN: Approved parts are so designated to reduce the variety of parts and assure maximum availability, interchangeability, and cost savings. Pag
14、e Restricted Chemical Substances 3 Workmanship 3 Dimensions 4 Part List 5 Technical Information 5 NUMBER: MPAPS S-FM-16.101-GS/PL TITLE: Washers REVISION: 1506 This document is restricted and may not be sent outside Navistar, Inc. or reproduced without permission from Corporate Technical Standards.
15、Suppliers are required to assume all patent liability. 2015 by Navistar, Inc. JUNE 2015 Page 3 of 5 For new design, parts shall be selected from “Approved“ part list only. Material CST (Type A) HTS (TYPES B & C) Nominal Sizes 2, 3, 4, 5, 6, 8, 10 6, 8, 10, 12, 16, 20, 24, 30, 36 Finish Plain (PLN) Z
16、inc Trivalent (ZN6A) Phosphate Coated (PHC) Zinc Trivalent (ZN6A) 7.0 MISCELLANEOUS DIMENSIONS: For Hardened Washers, the inside and outside diameters will be concentric within a full indicator movement (FIM) equivalent to the tolerance permitted on the inside diameter. The tabulated inside dimensio
17、ns and tolerances apply only to the smallest hole size and not to the tapered breakout area. The tapered breakout area and permissible breakout tolerance will be as shown: All washers will be flat within a full indicator movement (FIM) of: 0.2 mm thru 25 mm OD 0.3 mm over 25 mm OD 8.0 MATERIAL: Carb
18、on Steel Washers (CST) (Type A) per MPAPS A-0, Part II, Code 0-100. Hardened Washers (Types B & C) - Steel (HTS) 1040 to 1065 per MPAPS A-0, Part I, quenched and tempered to RC 36 to 42. Stainless Steel, Type 304 (SST304) (Type B) per MPAPS A-37. 9.0 FINISHES: Washers will be furnished in accordance
19、 with the Navistar Engineering Material Specification and class listed below: Plain (PLN) - Free from dirt and rust and coated with a light oil film. Zinc Trivalent (ZN6A) MPAPS G-20, Class 6A. Phosphate Coated (PHC) MPAPS G-1, Class B2. The determinant of plating thickness will be the thickness of
20、plating on the flat surface of the washer approximately midway between the inside and outside diameters. 10.0 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. 1
21、1.0 WORKMANSHIP: Washers must be free from burrs and any other defects that might affect their serviceability. NUMBER: MPAPS S-FM-16.101-GS/PL TITLE: Washers REVISION: 1506 This document is restricted and may not be sent outside Navistar, Inc. or reproduced without permission from Corporate Technica
22、l Standards. Suppliers are required to assume all patent liability. 2015 by Navistar, Inc. JUNE 2015 Page 4 of 5 12.0 DIMENSIONS: Dimensions in millimeters: A ID B OD C Thickness A ID B OD C Thickness Nominal Nominal Bolt Bolt or Screw Size Min Max + 0.50 Nom Max Min or Screw Size Min Max + 0.50 Nom
23、 Max Min TYPE A (Soft) * 1.6 1.7 1.8 4 0.3 0.4 0.2 * 18 19.8 20.3 34 3 3.3 2.7 2 2.2 2.3 5 0.3 0.4 0.2 * 20 21.8 22.3 37 3 3.3 2.7 * 2.5 2.7 2.8 6.5 0.5 0.6 0.4 * 22 23.8 24.3 39 3 3.3 2.7 3 3.2 3.4 7 0.5 0.6 0.4 * 24 25.8 26.3 44 4 4.3 3.7 4 4.3 4.5 9 0.8 0.9 0.7 * 27 29.8 30.3 50 4 4.3 3.7 5 5.5 5
24、.7 10 1 1.1 0.9 * 30 32.8 33.4 56 4 4.3 3.7 6 6.4 6.8 12.5 1.6 1.8 1.4 * 33 35.8 36.4 60 5 5.6 4.4 * 7 7.4 7.8 14 1.6 1.8 1.4 * 36 38.8 39.4 66 5 5.6 4.4 8 8.8 9.2 17 1.6 1.8 1.4 * 39 41.8 42.4 72 6 6.6 5.4 10 10.8 11.2 21 2 2.2 1.8 * 42 44.8 45.4 78 7 7.6 6.4 * 12 13.3 13.7 24 2.5 2.7 2.3 * 45 47.8
25、 48.4 85 7 7.6 6.4 * 14 15.3 15.7 28 2.5 2.7 2.3 * 48 5 1.8 52.5 92 8 8.6 7.4 * 16 17.3 17.7 30 3 3.3 2.7 * 52 55.8 56.5 98 8 8.6 7.4 TYPE B (Hardened) 6 6.4 6.8 12.5 2 2.2 1.8 20 21.8 22.3 37 4 4.3 3.7 8 8.8 9.2 17 2 2.2 1.8 24 25.8 26.3 44 5 5.6 4.4 10 10.8 11.2 21 2.5 2.7 2.3 30 32.8 33.4 56 5 5.
26、6 4.4 12 13.3 13.7 24 3 3.3 2.7 36 38.8 39.4 66 6 6.6 5.4 * 14 15.3 15.7 28 3 3.3 2.7 16 17.3 17.7 30 4 4.3 3.7 TYPE C (Hardened) 6 6.4 6.8 14 2.5 2.7 2.3 18 19.8 20.3 41 5 5.6 4.4 8 8.8 9.2 21 2.5 2.7 2.3 20 21.8 22.3 44 5 5.6 4.4 10 10.8 11.2 24 3 3.3 2.7 24 25.8 26.3 56 6 6.6 5.4 12 13.3 13.7 28
27、4 4.3 3.7 30 32.8 33.4 66 6 6.6 5.4 16 17.3 17.7 34 5 5.6 4.4 36 38.8 39.4 78 7 7.6 6.4 *Non-Preferred Sizes NUMBER: MPAPS S-FM-16.101-GS/PL TITLE: Washers REVISION: 1506 This document is restricted and may not be sent outside Navistar, Inc. or reproduced without permission from Corporate Technical
28、Standards. Suppliers are required to assume all patent liability. 2015 by Navistar, Inc. JUNE 2015 Page 5 of 5 13.0 PART LIST: 13.1 Approved: Nom Size Min ID Nominal OD Nominal Thick Washer Type Finish Material Part Number 4 4.3 9 0.8 A ZN6A CST 30289R1 5 5.5 10 1 A ZN6A CST 30481R1 6 6.4 12.5 1.6 A
29、 ZN6A CST 934948R1 6 6.4 12.5 2 B PHC HTS 30209R1 6 6.4 12.5 2 B ZN6A HTS 30325R1 6 6.4 14 2.5 C PHC HTS 30210R1 8 8.8 17 1.6 A ZN6A CST 934675R1 8 8.8 17 2 B ZN6A HTS 30326R1 8 8.8 17 2 B PHC HTS 30175R1 8 8.8 21 2.5 C PHC HTS 30183R1 10 10.8 21 2 A ZN6A CST 30282R1 10 10.8 21 2.5 B ZN6A HTS 30327R
30、1 10 10.8 21 2.5 B PHC HTS 30176R1 10 10.8 24 3 C PHC HTS 30184R1 12 13.3 24 3 B ZN6A HTS 30328R1 12 13.3 24 3 B PHC HTS 30177R1 12 13.3 28 4 C PHC HTS 30185R1 16 17.3 30 4 B ZN6A HTS 30329R1 16 17.3 30 4 B PHC HTS 30178R1 16 17.3 34 5 C PHC HTS 30186R1 20 21.8 37 4 B PHC HTS 30179R1 20 21.8 44 5 C
31、PHC HTS 30187R1 24 25.8 44 5 B ZN6A HTS 31182R1 24 25.8 44 5 B PHC HTS 30180R1 24 25.8 56 6 C PHC HTS 30188R1 36 38.8 66 6 B PHC HTS 30182R1 14 15.3 28 3 B PHC HTS 30408R1 14 15.3 28 3 B ZN6A HTS 40353R1 16 17.3 30 2.5 B PHC HTS 31103R1 22 23.8 39 3 A ZN6A CST 933545R1 13.2 Not for New Design: Nom S
32、ize Min ID Nominal OD Nominal Thick Washer Type Finish Material Part Number 3 3.2 7 0.5 A ZN6A CST 30239R1 14.0 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:/
