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 2 NAVISTAR, INC. Material, Parts, and Process Specifications (M
2、PAPS) NUMBER: MPAPS S-E-74.101-GS/PL Former Designation: ESP-E-74.101-GS TITLE: Wing Nuts English Series (Noun Code 5780) CURRENT REV No.: 1506 DATE: June 2015 WRITTEN/EDITED BY: Materials Engineering APPROVED BY: Materials Engineering SUPERSEDES: ESP-E-74.101-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. 1.0 MISCELLANEOUS DIMENSIONS: Bearing surface will be at angles to the axis of the hole within 2. 2.0 THREADS: Threads will be Unified Coarse or Fine (UNF), Class 2B. 3.0
5、 MATERIAL: Steel or brass, as specified, that is adaptable to manufacturing process. SAE 1010 or equivalent acceptable for forged type steel Wing Nuts. 4.0 FINISH: As designated by part number, nuts will be furnished plain, plated or coated in accordance with International Engineering Material Speci
6、fication and class listed below: Zinc Trivalent (ZN6A) on steel MPAPS G-20, Class 6A. Phosphate Coating (PHC) MPAPS G-1, Class B-2. Chromium Bright (CRB) on steel CEMS G-19, Part III, Class 3, 5 or 8 depending on pitch. 5.0 RESTRICTED CHEMICAL SUBSTANCES: Effective January 1, 2007, all product suppl
7、ied to the requirements of this specification must comply with the requirements of the MPAPS B-50 specification. 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 b
8、uying. For new design, parts shall be selected from “Approved“ part list only. Nominal Sizes: #8, #10, 1/4, 5/16, 3/8 and 1/2 Thread: Unified Series, Coarse Material:Carbon Steel Finish: Zinc Trivalent, Class 6A (ZN6A) NUMBER: MPAPS S-E-74.101-GS/PL TITLE: Wing Nuts 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 Navistar, Inc. JUNE 2015 Page 2 of 2 7.0 PART LIST: 7.1 Approved: Nominal Size 8 10 12* 1/4 5/16 3/8 7/16 * 1/2 P Betw
10、een Wings 7/32 7/32 9/32 9/32 5/16 3/8 1/2 1/2 D Wing Spread 27/32 27/32 1 1 1-3/16 1- 3/8 1- 7/8 1-7/8 E Wing eight 13/32 13/32 1/2 1/2 19/32 23/32 15/16 15/16 N Radius 1/16 1/16 1/16 1/16 3/32 1/8 1/8 1/8 S Radius 1/8 1/8 5/32 5/32 3/16 1/4 1/4 1/4 J Radius 7/16 7/16 9/16 9/16 5/8 3/4 1 1 K Wing T
11、hickness 1/32 1/32 3/64 3/64 1/16 3/32 7/64 7/64 L Wing Thickness 1/8 1/8 5/32 5/32 3/16 7/32 1/4 1/4 M Boss Diameter 1/4 1/4 5/16 5/16 3/8 7/16 5/8 5/8 F Boss Diameter 7/16 7/16 1/2 1/2 9/16 11/16 29/32 29/32 0 Radius 5/16 5/16 3/8 3/8 1/2 11/16 15/16 15/16 C Boss Height 3/16 3/16 7/32 7/32 1/4 5/1
12、6 3/8 3/8 B Threads Per Inch 32 36 * 24 32 * 24 * 28 * 20 28 * 18 24 * 16 24 * 14 * 20 * 13 20* Pitch Diameter, Maximum .1475 .1496 .1672 .1736 .1933 .1970 .2223 .2311 .2817 .2902 .3401 .3528 .3972 .4104 .4565 .4731 Pitch Diameter, Minimum .1437 .1460 .1629 .1697 .1889 .1928 .2175 .2268 .2764 .2854
13、3344 .3479 .3911 .4050 .4500 .4675 Minor Diameter, Maximum .1389 .1416 .1555 .1641 .1907 .1857 .2067 .2190 .2630 .2754 .3182 .3372 .3717 .3916 .4284 .4537 Minor Diameter, Minimum .1302 .1339 .1449 .1562 .1709 .1773 .1959 .2113 .2524 .2674 .3073 .3299 .3602 .3834 .4167 .4459 Finish PART NUMBERS - ST
14、EEL Plain 103128 Zinc 219210 142745 * Non-Preferred 8.0 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:/
