1、a 5 “I I * e * MIL-W-2233A 53 m 77777Ob 0203260 5 m MI L-W-2 133 $A 15 JAPUUARY 1970 SUPERSEDING 30 June 1959 MIL-W-21338 MI LITA RY SPE CIF ICA TION WASHERS, KEY RETAINING, BALL AND ROLLER BEARINGS This specification is mandatory for use by all Depart- ments and A-gencies of the Department of Defen
2、se. 1. SCOPE 1.1 Scope - This specification covers the procurement requirements for retaining key washers for use in assemblies with ball and roller bearings. 1.2 Classification - The washers shall. be of the following types and classes, as specified (see 6.2): Types : Type I - Regular series Class
3、1 - Carbon steel Class 2 - Corrosion resisting steel Type II - Light series Class 1 - Alloy steel 2. APPLICABLE DOCUMENTS 2.1 for bids or request for proposal, form a part of the specification to the extent specified herein. The following documents of the issue in effect on date of invitation Provid
4、ed by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-W-21338A SPECIFICATIONS Federal * QQ-P-35 QQ-P-416 Militarv * MIL-H-3 9 82 MIL-P-16232 STANDARDS Federal FED-STD-66 Fed, Test Method Std. No. 151 Military MIL-STD-105 MIL-STD -1 O 9 MIL-STD-130 MS19069 MS
5、19070 Hardware (Fasteners and Related Items) Packaging and Packing for Shipment and Storage of Phosphate Coating, Heavy, Manganese or Zinc Base (for Ferrous Metals) Steel; Chemical Composition and Hardenability Metals: Test Methods Sampling Procedures and Tables for Inspection by Attributes Quality
6、Assurance Terms and Definitions Identification Marking of U. S. Military Property Washers, Key Retaining, Ball and Roller Bearing, Light Series Washers, Key Retaining, Ball and Roller Bearing, Regular Series (Copies of specifications, standards, drawings, and publications required by suppliers in co
7、nnection with specific procurement functions should be obtained from the procuring activity or as directed by the contracting officer. ) 2 fi =- Passivation Treatment for Austenitic, Ferritic, and Martensitic Corrosion-Resisting Steel (Fastening Devices) Plating, Cadmium (Electrodeposited) Provided
8、by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-* * * * I r MIL-W-2133A 53 W 7779706 0103162 7 W MIL-W-21338A 2.2 Other publications - The following documents form a part of this specification to the extent specified herein. Unless otherwise indicated, the is
9、sue in efect on the dte of invitstion for bids or request for proposal shall apply. United States of Anierica Standards Institute - USAS B46.1 Surface Texture, Roughness, Waviness, and Lay (Application for copies should be addressed to the United States of America Standards Institute, 10 East 40th S
10、treet, New York, New York 10016.) 3. REQUIREMENTS 3.1 Materials - Materials used in the manufacture of washers shall be homogeneous in structure, free from laminations, inclusion of nonmetallic impurities, and such other defects as would render the material unsuitable for its intended pur- pose and
11、shall be in accordance with 3. l. l, 3. l. 2, or 3.1.3, as applicable. 3.1.1 Carbon steel - Type I, Class 1 washers shall be made from carbon steel conforming to FED-STD-66 Steel Nos. 1005 to 1035, inclusive. 3.1.2 fabricated from corrosion-resisting steel conforming to FED-STD-66 Steel Nos. 302, 30
12、3, or 304. Corrosion-resisting steel - Type I, Class 2 washers shall be 3.1.3 Alloy steel - Type II, Class 1 washers shall be made from an alloy steel conforming to FED-STD-66 Steel No. 8735. 3.2 Surface roughness - Surface roughness of Types I and II washers shall not be greater than a minimum roug
13、hness height rating of 250. Surface roughness shall be interpreted in accordance with the provisions of USAS B46.1. 3.3 Tolerances - Tolerances for Types I and II washers shall be plus or minus O. 010 inch for linear dimensions and plus or minus 2 degrees for angular dimensions. 3.4 Design, sizes, a
14、nd dimensions - Unless otherwise specified in the contract or order, washers shall conform to the designs, sizes, dimensions, and other requirements specified herein. 35 Tangs - The tangs shall be equally spaced, uniform and symmet- rical wjth respect to size, shape, and angle. 3.6 Bending - Washers
15、 shall be capable of being bent without fracture, as specified in test method 4.4.1. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-W-2133 8A * 3.7 Protective coating and treatment - Unless otherwise specified in the contract or order (see 6.2
16、), washers shall be plated, coated, or treated in accordance with 3.7.1, 3.7.2, or 3.7.3. 3.7.1 Cadmium plating - Cadmium plating shall be in accordance with QQ-P-416, Type II, Class C. 3.7.2 Phosphate coating - Phosphate coating shall be in accordance with MIL-P-16232, Type II without supplementary
17、 finish. * 3.7.3 Passivation - Corrosion-resistant steel shall be passivated in accordance with QQ-P-35. 3.7.3.1 Other methods of passivation may be substituted in lieu of 3.7.3 only upon prior approval of the procuring activity. 3.8 Hardness - 3.8.1 Carbon steel - The hardness of carbon steel washe
18、rs in the annealed condition shall be Rockwell B50 minimum to Rockwell B81 maximum. 3.8.2 Corrosion-resisting steel - Corrosion-resisting steel washers shall be in the annealed condition and at a hardness of 70 Rockwell B minimum to 90 Rockwell B maximum. 3.8.3 Alloy steel - The hardness of alloy st
19、eel washers in the normalized condition shall be Rockwell B92 minimum. 3.9 Identification marking - Each washer shall be permanently and legibly marked with the manufacturers name or trademark and part number in accordance with the provisions of MIL-STD-130. 3.10 Workmanship - Workmanship shall be i
20、n accordance with high grade commercial practice governing this type of item. Washers shall be free from burrs, sharp edges, cracks, or any other defects which will adversely affect their serviceability. 4. QUALITY ASSURANCE PROVISIONS * 4.1 Responsibility for inspection - Unless otherwise specified
21、 in the contract or purchase order, the supplier is responsible for the performance of all inspection requirements as specified herein. Except as otherwise specified in the contract or order, the supplier may use his own or any other facilities suitable for by the Government. The Government reserves
22、 the right to perform any of the . the performance of the inspection requirements specified herein, unless disapproved 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NIL-W-ZL33BA 53 7977706 OLO3Lb4 2 MIL-W-2133 8A inspections set forth in the spec
23、ification where such inspections are deemed neces- sa.ry to assure supplies and services conform to prescribed requirements. % 4.1.1 Inspection terms - The definitions of terms used in this section shall be in accordance with MIL-STD-109. a * 4-2 Classification of inspection - The inspection require
24、ments speci- P a fied herein are classified as quality conformance inspections (see 4.3). * 4.3 Quality conformance inspection - Quality conformance inspection shall consist of all the examinations and tests specified herein. 4.3,l Sampling - 4.3.1.1 Inspection lot - A lot shall consist of all the w
25、ashers of the same type, class, and size submitted for quality conformance inspection at one time. % 4.3.1.2 Sampling for quality conformance tests - Unless otherwise speci- fied, sampling for Composition, Hardness and Bending tests shall be in accordance with Inspection Level S-2 of MIL-STD-105. Di
26、sposition of the lot shall be in accord- ance with the criteria for the acceptable quality level (AQL) 10. O percent defective of MIL-STD-105 for each test. 4.3.1.3 Sampling for examination of the end item - Unless otherwise speci- fied, sampling for the following examinations shall be in accordance
27、 with Inspection O* Level II of MIL-STD-105: (a) Visual and dimensional examination (see 4 3.2.1). (b) Examination for packaging, packing and marking (see 4.3.2.2). 4.3.2 Examination of the end item - % 4.3.2.1 Visual and dimensional examination - Sample washers selected in accordance with 4.3.1.3 s
28、hall be visually and dimensionally examined in accordance with the requirements of 3.2 through 3.5, 3.7 , 3.9, and 3.10, and the contract or order. The AQL shall be 2. O defects per 100 units. f * 4.3.2.2 Examination for packaging, packing and marking - The inspector shall ascertain that packaging,
29、packing, and marking of washers and the marking of containers is in accordance with the requirements of this specification and the contract or order. -3 4.4 Test methods - 5 ,- I F Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-W-21338A * 4.41 B
30、ending - Sample washers selected in accordance with 4.3.1.2 shall be capable of being bent back 180“ (degrees) flat, either way of grain, over a radius equal to 1/2 the stock thickness, without fracture. * 4.4.2 Composition and hardness - Sample washers selected in accordame with 4.3.1.2 shall be te
31、sted for composition and hardness for conformance with 3. i and 3.8 respectively. The test procedures for composition and hardness shall be as outlined in Fed. Test Method Std. No. 151, or the manufacturers certificate on composition and hardness will be acceptable. 4.5 Rejected lot - A rejected lot
32、 may be resubmitted for Government acceptance in accordance with the provisions of MIL-STD-105. 5. PREPARATION FOR DELIVERY * 5.1 Preservation, packaging, and packing - Washers shall be preserved and packaged Level A or C, and packed Level A, By or C of MIL-H-3982. . The.leve1 of protection shall be
33、 as specified in the contract or order (see 6.2). 6. NOTES 6.1 Intended use - Retaining key washers covered by this specification are intended for use with slotted retaining nuts in securing and locking ball and roller bearings in position on shafts against shaft shoulders. This specification covers
34、 the requirements for MS19069 to MS19070, * 6.2 Ordering data - Procurement documents should specify the following : (a) Title, date, and number of this specificatj (b) Type, class, and size of washer required (c) Protective finish required (see 3.7). m. see 1.2 and 3.4). (d) Whether preservation sh
35、all be Level A or Level C (see 5.1). (e) Whether packaging shall be Level A or Level C (see 5.1). (f ) Whether packing shall be Level A, Level B, or Level C (see 5.1). * 6;3 The margins of this specification are marked with an asterisk to indicate where changes (additions, modifications, corrections
36、, deletions) from the previous issue were made. This was done as a convenience only and the Government Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-W-21338A 53 7777706 O103Lbb b = ._. - MILW-2133 8A assumes no liability whatsoever for any inac
37、curacies in these notations. Bidders and contractors are cautioned to evaluate the requirements of this document based on the entire content irrespective of the marginal notations and relationship to the last previous issue. 1 J Custodians: Army - AT Navy - OS Air Force - 11 Preparing activity:. Pro
38、ject No. 3110-0209 Navy - OS Review activities: Army - WC, NIU, AV, MI Navy - OS, SH Air Force - 11, 84 User act iv it ie s : Army -.GL Navy - YD, MC, AS Air Force - * U. S. GOVERNMENT PRINTING OFFICE: 1970-393-093/3833 i 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
