1、METRICDOD-W-63546A W/AMENDMENT 1 12 April 2005 MILITARY SPECIFICATION WASHER, KEY, METRIC GENERAL SPECIFICATION FOR This specification is approved for use by all Departments and Agencies of the Department of Defense 1. SCOPE 1.1 Scope. This specification covers flat long, flat long and short, and ex
2、ternal types of washer, key, metric. 2. APPLICABLE DOCUMENTS Specifications, standards, and handbooks. Unless otherwise specified, the following specifications, standards, and handbooks of the issue listed in that issue of the Department of Defense Index of Specifications and Standards (DoDISS) spec
3、ified in the solicitation, form a part of this specification to the extent specified herein. SPECIFICATIONS MILITARY MIL-F-495 - Finish, Chemical Black, For Copper Alloys (Copies of specifications, standards, handbooks, drawing, and publications required by manufacturers in connection with specific
4、acquisition functions should be obtained from the contracting activity or as directed by the contracting officer.) (See supplement 1 for list of associated specifications.) Comments, suggestions, or questions on this document should be addressed to: Defense Supply Center Philadelphia, ATTN: DSCP-ITA
5、A, 700 Robbins Avenue, Philadelphia, PA 19111-5096 or emailed to dscpg&ispeccommentsdla.mil. Since contact information can change, you may want to verify the currency of this information using the ASSIST Online database at http:/assist.daps.dla.mil/Inactive for new design after 1 October 1999 AMSC N
6、/A FSC 53101 of 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-DOD-W-63546A W/AMENDMENT 1 2.2 Other publications. The following documents form a part of this specification to the extent specified herein. The issues of the documents which are indic
7、ated as DoD adopted shall be the issue listed in the current DoDISS and the supplement thereto, if applicable. American Society For Testing And Materials Standard (ASTM) ASTM A109 - Standard Specification for Steel, Strip, Carbon (0.25 Maximum Percent), Cold- Rolled ASTM A153 - Standard Specificatio
8、n for Zinc Coating (Hot-Dip) on Iron and Steel Hardware ASTM A342 - Standard Test Methods for Permeability of Feebly Magnetic Materials ASTM B36 - Standard Specification for Brass Plate, Sheet, Strip, and Rolled Bar ASTM B633 - Standard Specification for Electrodeposited Coatings of Zinc on Iron and
9、 Steel ASTM E1444 - Standard Practice for Magnetic Particle Examination (Application for copies should be addressed to ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959.) American Society For Quality Control: ASQ Z1.4 -Sampling Procedures and Tables for Inspection by Attributes (Applicat
10、ion for copies should be addressed to the American Society For Quality Control, 611 East Wisconsin Avenue, Milwaukee, WI 53202.) Society of Automotive Engineer (SAE): AMS-STD-66 -Steel: Chemical Composition and Hardenability AMS-QQ-P-416 -Plating, Cadmium (Electrodeposited) (Application for copies s
11、hould be addressed to the SAE, International, 400 Commonwealth Drive, Warrendale. PA 15096-0001.) Aerospace Industries Association (AIA) NASM 1312 - Fastener Test Methods (Application for copies of NASC publications should be addressed to the Aerospace Industries Association, 1250 Eye Street NW, Was
12、hington DC 20005.) 2.3 Order of precedence. In the event of a conflict between the text of this specification and the reference cited herein, the text of this specification shall take precedence. 3. REQUIREMENTS. 3.1 Specification sheets. The individual item requirements shall be as specified herein
13、 and in accordance with the applicable specification sheets. In the event of any conflict between requirements of this specification and the specification sheet, the latter shall govern. 3.2 Material. Recycled and reclaimed materials (see 3.1) shall be used to the maximum extent practicable. 3.2.1 B
14、rass. Brass washers shall conform to the requirements of ASTM B36 copper alloy UNS C26800, temper half-hard. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-DOD-W-63546A W/AMENDMENT 1 3.2.2 Steel. Carbon steel washers shall be of composition 1008 t
15、o 1018, cold rolled, no. 4 temper, no. 3 finish in accordance with ASTM A109. 3.3 Hardness. 3.3.1 Carbon steel washers. Carbon steel washers shall have a maximum hardness of 65 HRB. Washers having a thickness less than .75 mm shall have a maximum hardness of 60 HR30T. 3.3.2 Brass washers. Brass wash
16、ers shall have a maximum of 70 HRB. Washers having a thickness less than .75 mm shall have a maximum hardness of 65 HR30T. 3.4 Finish. The protective finish of the washers when specified in the applicable specification sheet shall be as follows (see 4.3.3). 3.4.1 Black chemical. Brass washers shall
17、be black oxide coated in accordance with MIL-F-495. 3.4.2 Cadmium plate. Carbon steel washers shall be cadmium plated in accordance with SAE-AMS-QQ-P-416, type II, class 2. The coating thickness shall be 7.6 m (micrometers). 3.4.3 Zinc coating. Carbon steel washers shall be zinc coated in accordance
18、 with ASTM B633, Fe/Zn 5, type II. 3.4.4 Galvanized zinc. (hot-dipped). Carbon steel washers shall be hot-dipped galvanized in accordance with ASTM A153. 3.5 Dimensions. Dimensions and tolerances shall be in accordance with the applicable specification sheet and as specified herein. 3.5.1 Parallelis
19、m. Washer faces shall be parallel within: 25 m for thickness less than .50 mm 50 m for thickness .50 mm to 1.00 mm 100 m for thickness 1.00 mm to 2.50 mm 150 m for thickness 2.50 mm to 4.00 mm 3.5.1 Flatness. Washer faces shall be flat within: 175 m for hole sizes thru 13 mm 250 m for hole sizes 14
20、mm thru 34 mm 380 m for hole sizes over 34 mm 3.5.3 Concentricity. The outside diameter (OD) of the washer shall be concentric with the inside diameter (ID) within the following limits as specified in Table I. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license fro
21、m IHS-,-,-DOD-W-63546A W/AMENDMENT 1 TABLE I. Concentricity. Outside diameter (OD) mm Concentricity m Over 1 3 6 10 18 30 50 80 To 3 6 10 18 30 50 80 120 125 150 180 215 260 310 370 435 3.6 Cracks. Washers shall be free from cracks, flaws, and pits in any location. A crack is a clean crystalline fra
22、cture passing through or across the grain boundaries without inclusion of foreign elements. 3.7 Workmanship. Washers shall be free from surface contamination tool marks and other imperfections which may adversely affect useability. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection. U
23、nless otherwise in the contract or purchase order, the contractor is responsible for the performance of all inspection requirements as specified herein. Except as otherwise specified in the contract or purchase order, the contractor may use his or any other facilities suitable for the performance of
24、 the inspection requirements specified herein, unless disapproved by the Government. The Government reserves the right to perform any of the inspections set forth in the specification where such inspections are deemed necessary to assure supplies and services conform to prescribed requirements. 4.2
25、Quality conformance inspection. Quality conformance inspection shall be as specified in table II. TABLE II. Quality conformance inspections. Inspections Requirement Paragraph Test method Paragraph Dimensions Magnetic particle (cracks) Protective finish Hardness 3.5 3.6 3.4 3.3.1, 3.3.2 4.3.1 4.3.2 4
26、.3.3 4.3.4 4.2.1 Inspection lot. An inspection lot shall consist of completed washers covered by a single specification sheet, produced under essentially the same conditions and offered for inspection at one time. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license
27、 from IHS-,-,-DOD-W-63546A W/AMENDMENT 1 4.2.2 Rejected lot. If an inspection lot is rejected, the contractor may rework it to correct the defects, or screen out the defective units, and resubmit for reinspection. Resubmitted lot shall be inspected using tightened inspection. Such lots shall be sepa
28、rate from new lots, and shall be clearly identified as reinspected lots. 4.2.3 Sampling for visual and dimensional examination. Sampling shall be in accordance with inspection level S-3 of ASQ Z1.4 with an acceptable quality level (AQL) of 2.5 percent defective for major defects. Minor defects shall
29、 be in accordance with inspection level S-3 of ASQ Z1.4 with AQL of 4.0 percent defective. 4.2.4 Sampling for finish test. Sampling for protective finish shall be in accordance with the applicable specifications referenced in 3.4.1 thru 3.4.4. 4.2.5 Sampling for other tests. Sampling for magnetic pa
30、rticle (cracks), and hardness inspection shall be in accordance with inspection level S-1 of ASQ Z1.4 with an AQL of 1.5 percent defective. 4.3 Methods of Inspection. 4.3.1 Visual and dimensional examination. Samples taken as specified in 4.2.3 shall be thoroughly examined to determine conformance w
31、ith this specification and applicable specification sheet. Examination shall be conduced in accordance with table III. TABLE III. Classification of defects. Category Defect Inspection Method Critical None definedMajor 101 102 103 104 105 106 Inside diameter, not as specified (see 3.5) Outside diamet
32、er, not as specified (see 3.5) Thickness, not as specified (see 3.5) Parallelism, not as specified (see 3.5.1) Flatness, not as specified (see 3.5.2) Evidence of cracks, flaws or pits (see 3.6) SIE 1/ SIE SIE SIE SIE Visual Minor 201 202 203 Protective finish, missing or incomplete (see 3.4) Other d
33、imensions, not as specified (see 3.5) Workmanship (see 3.7) Visual SIE Visual 1 / Standard inspection equipment. 4.3.2 Magnetic particle (cracks) inspection. When specified (see 6.2), samples taken as specified in 4.2.5 shall be subjected to magnetic particle inspection in accordance with ASTM E1444
34、. There shall be no evidence of cracks or pits as specified in 3.6. 4.3.3 Finish test. Carbon steel washers shall conform to the finish test of SAE-AMS-QQ-P-416, ASTM B633 or ASTM A153 as specified in 3.4. Brass washers shall conform to the finish test of MIL-F-495. 5 Provided by IHSNot for ResaleNo
35、 reproduction or networking permitted without license from IHS-,-,-DOD-W-63546A W/AMENDMENT 1 4.3.4 Hardness test. Washers shall be tested for surface hardness in accordance with NASM1312, test method 6. 4.3.5 Material inspection. Material inspection shall consist of certification supported verifyin
36、g data that the materials used in fabricating washers are in accordance with the applicable paragraphs listed in 3.2.1, 3.2.2, 3.3.1 and 3.3.2. 4.3.6 Deleted. 5. PACKAGING 5.1 Packaging. For Acquisition purposes, the packaging requirements shall be as specified in the contract or order (see 6.2). Wh
37、en packaging of material is to be performed by DoD or in-house contractor personnel, these personnel need to contact the responsible packaging activity to ascertain packaging requirements. Packaging requirements are maintained by the Inventory Control Points packaging activities within the Military
38、Service or Defense Agency, or within the military services system commands. Packaging data retrieval is available from the managing Military Departments or Defense Agencys automated packaging files, CD-ROM products, or by contracting the responsible packaging activity. 6. NOTES 6.1 Intended use. Thi
39、s specification covers various types of washers, key, flat, for general purpose, aircraft and general metric bolt and nut application. Their purpose is to provide an increase bearing surface and to prevent galling of the base material as well as safetying metric fasteners. 6.2 Ordering data. Procure
40、ment documents should specify the following: a. Title, number and date of this specification and applicable specification sheet b. Applicable specification sheet part number c. Magnetic particle (see 4.3.2) 6.3 Amendment notations. The margins of this specification are marked with vertical lines to
41、indicate where modifications from this amendment were made. This was done as a convenience only and the Government assumes no liability whatsoever for any inaccuracies in these notations. Bidders and contractors are cautioned to evaluate the requirements of this document based on the entire content
42、irrespective of the marginal notations. Custodians: Preparing activity: Army AR DLA-IS Navy SH (Project 5310-2719) Air Force 99 Review activities: Army AT, AV, MI, CR4 Air Force 71 NOTE: The activities listed above were interested in this document as of the date of this document. Since organizations and responsibilities can change, you should verify the currency of the information above using the ASSIST Online database at http:/assist.daps.dla.mil/6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
