1、DOD-T-63549 7 September 1982 MILITARY SPECIFICATION THUMBSCREW, WING HEAD, 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 one type of metrically dimensioned wing heam
2、mbscsrew (see 6.1) . 2 APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 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 Standard
3、s (DODISS) specified in the solicitation form a part of this specification to the extent specified herein. SPECIFICATIONS FEDERAL QQ-E613 - Brass, Leaded and Non-Leaded: Flat Products (Plate, Bar, QQ-E626 - Brass, Leaded and Non-Leaded: Rod, Shapes, Forgings and QQ-P-416 - Plating, Cadmium (Electrod
4、eposited) QQ-Z-325 - Zinc Coating, Electrodeposited, Requirements for PPP-H-1581 - Hardware (Fasteners and Related Items), Packaging of Sheet and Strip) Flat Products with Finished Edges (Bar and Strip) MILITARY MIL-F-495 - Finish, Chemical, Black, for Copper Alloys DOD-T-63549/1 - Thumbscrew, Wing
5、Head, Metric Beneficial coments (recomnendations, additions, deletions) and any pertinent data which may be of use in improving this document should.be addressed to: Comnander, US Army Armament Research and Development Comnand, ATTN: DmAlbTST-S, Dover, NJ 07801 by using the self-addressed Standardiz
6、ation Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-STANDARDS FEDERAL FED-STD-H28/21 - Screw Thread Standards for Federal Services, FED-STD-66 - Steel:
7、 Chemical Composition and Hardenability Section 21, Metric Screw Threads MILITARY MIL-STD- 105 - Sampling Procedures and Tables for Inspection by MIL-STD-1312 - Fasteners, Test Methods Attributes (Copies of specifications, standards, handbooks, drawings, and publications required by manufacturers in
8、 connection with specific acquisition functions shculd be obtained from the contracting activity or as directed by the contracting officer ,) The following document(s) form a part of this specification to the extent specified herein, The issues of the documents which are indicated as DoD adopted sha
9、ll be the issue listed in the current DODISS and the supplement thereto, if applicable. 2.2 ther publications, AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI) ANSI B46.1 - Surface Texture (Applications for copies should be addressed to the American National Standards Institute, Inc., 1430 Broadway, New
10、 York, Ny 10018.) ( Industry association specifications and standards are generally available for reference from libraries, They are also distributed among technical groups and using Federal agencies , ) 2.3 &der of precedence, In the event of a conflict between the text of this specification and th
11、e references, other than specification sheets, cited herein, the text of this specification shall take precedence. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-DOD-T-635LI7 53 DOLT-635 49 W 06 01O5LIb 2m 3 . REQUIREMENTS 3.1 Specification sheets
12、, The individual item requirements shall be as specified herein and in accordance with the applicable specification sheet. the event of any conflict between requirements of this specification and the specification sheet, the latter shall govern. In 3.2 Material. Recycled and reclaimed materials shal
13、l be used to the maximum extent practicable. following materials, as specified (see 3.1). with a minimum ultimate tensile strength of 400 MPa. Wing head thumbscrews shall -be made of the 3.2.1 Carbon steel. Carbon steel shall be in accordance with FED-STD-66, 3.2.2 Brass. Brass shall be in accordanc
14、e with QQ-E613 or QQ-E626 with a minimum ultimate tensile strength of 380 MPa. 3.3 Hardness. The hardness of carbon steel wing head thunbscrews shall be 6 3-68 HRB 3.4 Protective finish. Wing head thunkscrews shall be protected with one of the following finishes, as specified (see 3.1). 3.4.1 Cadmiu
15、m plating. Electrodeposited cadmium plating on steel wing head thumbscrews shall conform to QQ-P-416, type II, class 3 (5.1 pm thick) . 3.4.2 Zinc coating. Zinc coating on steel wing head thumscrews shall conform to QQ-Z-3X, type II, class 3 (5.1 pm thick). 3.4.3 Black finish. Black finish on brass
16、wing head thumbscrews shall conform to MIGF-4%. 3.5 Dimensions. Dimensions and tolerances shall conform to the applicable specification sheet and except for thread surfaces shall apply after plating or coating. 3.6 Wing head thunkscrew threads shall conform to the IVMt1 profile and tolerance class 6
17、g, before plating or coating, as specified on the applicable specification sheet and as defined in FELSTLH28/21. Ihreads. 3.7 minimum. Sharp edges. Sharp edges shall be rounded, chamfered or broken, 0.1 mm 3 08 Surface texture. Wing head thunbscrew threads and bearing surface shall have a surface te
18、xture of 3.2 pm maximum after plating or coating determined in accordance with ANSI FN6.1. 3.9 shoulder shall be perpendicular to the axis of the screw shank within 4 degrees Bearing surface, The bearing surface of the wing head thunbscrew 3 Provided by IHSNot for ResaleNo reproduction or networking
19、 permitted without license from IHS-,-,-DOD-T-b35Ll9 53 9999906 0309547 Ll WD-T-63549 3.10 Workmanship. Finished wing head thunhscrews shall be uniform in quality and appearance. Surfaces shall be free of foreign matter. Surfaces in the unplated or uncoated condition shall be free of cracks, bursts,
20、 folds, tool marks, seams, voids on the bearing surface, nicks and gouges. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection. Unless otherwise specified in the contract or purchase order, the contractor is responsible for the performance of all inspection requirements as specified he
21、rein. Except as otherwise specified in the contract or purchase order, the contractor may use his own or any other facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the Government, The Government reserves the right to perform any of the in
22、spections set forth in the specification where such inspections are deemed necessary to assure supplies and services conform to prescribed requirements. 4.2 Classification of inspections, The inspection requirements specified herein are classified as follows: a. Materials inspection (see 4.3) b. Qua
23、lity conformance inspection (see 4.4) 4.3 Materials inspection Materials inspection shall consist of certification supported by data verifying-that materials used in fabricating wing head thumbscrews are in accordance with 3.2 and 3.4. 4 4 Quality conformance inmection . 4.4.1 Inspection lot, An ins
24、pection lot shall consist of all wing head thumbscrews covered by a single specification sheet, produced under essentially the same conditions and offered for inspection at one time. Re ected lots, rework it +-ni o correc e defects, or screen out the defective units, and resubmit for reinspection. i
25、nspection. Such lots shall be separate from new lots, and shall be clearly identified as reinspected Lots. 4.4,3 Smpling for visual dimensional examination. Sampling shall be in accordance with MILSTD-105 inspection level, II with an acceptable quality level (AQL) of 2.5 percent defective for major
26、defects. For minor defects, inspection level I with an A& of 4.0 percent defective shall apply. 4.4.2 If an inspection lot is redected, the contractor may Resubmitted lots shall be inspected using tightened 4.4.4 Sampling for test, Smples shall be selected from lots which have been visually and dime
27、nsionally examined and accepted. Sampling shall be in accordance with MIL-STD-105, inspection level S-2. The AQL shall be 4.0 percent defective. . 4 .fi Packaging inspection The sampling and inspection of the preservation, packaging, packing and container marking shall be in accordance with PP-H-158
28、1 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-DOD-T-635 49 . TABLE I. Quality conformance inspection. Examination or test Group A Dimensions Sharp edges Bearing surface Workmanship Group B Hardness Protective finish Surface texture Group C Tens
29、ile strength Requirements paragraph 3 -5 3 -7 3 -9 3.10 3 03 3 -4 3 *8 Examination or test paragraph 4.6.1 4.6.1 4.6.1 4.6.1 4.6.3 4.6.4 4.6 -5 4.6.2 4.6 Methods of inspection. 4.6.1 Visual and dimensional examination. Samples taken as specified in 4.4.3 shall be thorcughly examined to determine con
30、formance with this specification and applicable specification sheet. conducted in accordance with table I. Examination shall be 4.6.2 Tensile strength. Samples taken as specified in 4*4.4 shall be tested for tensile strength in accordance with test method 8 of MIL-STC-1312, to verify conformance wit
31、h 3.2. 4.6.3 Hardness. When specified (see 6.2), sample wing head thmbscrews taken as specified in 4.4.4 shall be tested for hardness in accordance with MIGSTD-1312, test method 6. 4.6.4 Protective finish. When specified (see 6.2), samples taken as specified in 4.4.4 shall be inspected for adequacy
32、of the finish in accordance with the applicable specification of 3.4. d 4.6.5 Surface texture, Smples taken as specified in 4.4.4 shall be examined for conformance with surface texture requirements specified in 3.8. Sanples shall be examined prior to plating or coating by an optical method of measur
33、ement in accordance with ANSI B46.1. 5. PACKAGING 5.1 Packaging requirements. The requirements for packaging shall be in accordance with PPP-H-1581 (see 6.2). 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-*US, GOVERNMENT PRINTING OFFICE1982-606-0
34、22/4696 - - c 6. NOTES 6.1 shaped head designed for manual turning without assistance of a driver or wrench * Intended use. Thuhscrews covered by this specification have a wing- 6.2 Ordering data. Acquisition documents should specify the following: a. Title, number and date of this specification and
35、 the applicable specification sheet . b, Applicable specification sheet part nunber (see 3.1) . c. Hardness test, if required (see 4.6 3) . d. Whether inspection in accordance with the applicable finish specification is required (see 4.6.4). e, Surface texture examination, if required (see 4.6.5) f
36、. Degree of protection, in accordance with PPP-H-1581, ordering data (see 5.1). Custodians: Preparing activity: ( Project 5305-1477) Army - AR Air Force - 99 Review activities: Air Force - 11 Army - AR Amy - AV, EA DLA - IS NSA - NS User activities: Army = ME, AT Navy - MC, SH Agent : DLA - IS 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
