1、- - _ s - 67-c37 MIL-B-87167 (USAF) 16 December 1985 I. MILITARY SPECIFICATION BELT, AIRCRAFT SAFETY, HBU-l2/A This specification is approved for use within the Department of the Air Force, and is available for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. Thi
2、s specification covers one type of aircraft safety lap belt for the aircraft ejection seat systems described in 6.1. q -5 The belt is designated HBU-l2/A. 2. APPLICABLE DOCUMENTS 2.1 Gove rnment d ocuments dards, and han dbookg . The following specifications, 2.1.1 SDecifications, stan and standards
3、 form a part of this specification to the extent specified herein. Unless otherwise specified, the issues of these documents shall be those listed ih the issue of the Department of Defense Index of Specifications and Standards (DoDISS) and supplement thereto, cited in the solicitation, SPECIFICATION
4、S q t O FEDERAL PPP-B-60 1 PPP-B-621 PPP-B-6 36 Boxes, Wood, Cleated Plywood Boxes, Wood, Nailed and Lock-Corner Boxes, Shipping, Fiberboard MILITARY MIL-P-116 Preservation, Methods of MIL-C-6021 Castings, Classification and Inspection of MIL-1-6866 Inspection, Penetrant Method of MIL-1-6868 Inspect
5、ion Process, Magnetic Particle MIL-A-83469 Adjuster, Lap Belt, 1-3/4 Inch Webbing Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: using the self-addressed Standardization Document Improvement Pr
6、oposal (DD Form 1426) appearing at the end of this document or by letter. ASD/ENES, Wright-Patterson AFB OH 45433-6503 by AMSC N/A O FSC 1680 DISTRIBUTION STATEMENT 4 . Approved for public release; distribution is unlimited. .y THIS DOCUMENT COMTAINS ab PAGES. Provided by IHSNot for ResaleNo reprodu
7、ction or networking permitted without license from IHS-,-,-MIL-B-87Lb7 Lb m 777770b 0207i.180 b m MIL-B-87 167 (USAF) STANDARDS MILITARY DD-STD-100 Engineering Drawing Practices MIL-STD-105 MIL-STD-129 MIL-STD-130 MIL-STD-143 MIL-STD-8 1 O MIL-STD-83 1 Sampling Procedures and Tables for Inspection b
8、y Attributes Marking for Shipment and Storage Identification Marking of U.S. Military Property Standards and Specifications, Order of Precedence for the Seleotion of Environmental Test Methods and Engineering Guidelines Test Reports, Preparation of 2.1.2 _Qther Gov- drb . The following other Governm
9、ent documents, drawings, and publications form a part of this speoification to the extent specified herein. Unless otherwise specified, the issues shall be those in effect on the date of the solicitation. DRAWINGS Frost Engineering Development Corporation (FSCM 29645 ) 549015 Gold Key, Buckle Hardwa
10、re 549 1 O0 iBU-l2/A Lap Belt Assembly 5491 10 Webbing Assembly, HBU-l2/A Lap Belt Assembly 549 120 Manual Releas! Assembly, Buckle Hardware 549 130 Automatic Disconnect Link Assembly, Buckle Hardware 549 140 Buckle Hardware, HBU-l2/A Lap Belt Assembly (Copies of specifioations, standards, handbooks
11、, drawings, publications, and other Government documents required by contractors in connection with specific aoquisition functions should be obtained from the contracting activity or as directed by the contracting activity.) 2.2 nub-. The following documents form a part of this speci- fication to th
12、e extent specified herein. Unless otherwise specified, the issues of the documents which are DoD adopted shall be those listed in the issue of the DoDISS specified in the solicitation. the issues of documents not listed in the DoDISS shall be the issue of the nongovernment documents which is current
13、 on the date of the solicitation. Unless otherwise specified, AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) ASTM E18 Rockwell Hardness and Rockwell Superficial Hardness of Metallic Materials, Test Methods for ASTM E192 Reference Radiographs for Investment Steel Castings for Aerospace Application
14、s ASTM D3951 Standard Practice for Commercial Packaging (Application for copies should be addressed to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103.) 2 P I 1 U Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-
15、,-MIL-B-87167 (USAF) (Nongovernment standards and other publication are normally available from the organizations which prepare or which distribute the documents. These documents also may be available in or through libraries or other informational services.) 2.3 Order of precedence . In the event of
16、 a conflict between the text of this specification and the references cited herein (except for associated detail specifications, specification sheets or MS standards), the text of this speci- fication shall take precedence. Nothing in this specification, however, shall supersede applicable laws and
17、regulations unless a specific exemption has been obtained . 3s REQUIREMENTS 3.1 First article . When specified in the contract or purchase order, samples shall be subjected to first article inspection (see 4.5 and 6.3). d stan dards, Specifications and standards 3.2 Selection of specifications an fo
18、r necessary commodities and services not specified herein shall be selected in accordance with MIL-STD-143. 3.3 plat eriala . Materials which are used in the fabrication and assembly of the lap belts and buckle hardware shall comply with the requirements of this specification. Materials which are no
19、t specifically designated, or which are offered as equivalent to specified manufacturers part numbers shall require approval by the procuring activity. 3.3.1 AnwaLbx and heat treatina . stainless steel parts shall be accomplished in a vacuum furnace or an inert atmosphere. 3.4 D_eainn and constructi
20、cm . The aircraft safety lap belt assemblies shall be in accordance with Drawing 549100, the subsidiary drawings listed below and their detail drawings, and the requirements specified herein. If the requirements of the drawings conflict with the requirements of this specification, the requirements o
21、f this specification shall govern. The annealing and heat treating of -DRAWINGS COMPONENTS QUANTITY Webbing Assembly, HBU-l2/A Lap Belt Assembly 1 Set - (one left hand (L.H.) and one right hand (R.H.) 5491 10 549 140 Buckle Hardware, HBU-l2/A Lap Belt Assembly 1 Set 3.4.1 -le hardware. The buckle ha
22、rdware (Drawing 549140) shall cnsist of a manual release assembly, an automatic disconnect link assembly and, when. applicable, a gold key. 3.4.1 -1 Drawing 549120 and shall have provision for connection of the L.H. webbing assembly. The design shall be such that the release handle cannot be closed
23、without having the gold key locked to the assembly. However, it shall also be possible for organizational-level personnel to modify the assembly easily so that the handle can be closed without the gold key, for belts used in ejection seat systems that do not need it. In either case, it shall be impo
24、ssible to open the release handle without squeezing its grips together by applying forces to them simultaneously in opposite directions. Manual release asse mblv. The manual release assembly shall conform to 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from
25、IHS-,-,-MIL-8-87 167 (WAF) 3.4.1.2 Auto matiusconnect .l c. Month and year of manufacture (abbreviated as in 3.7.1.0, if desired). 3.8 York mans m. All parts and assemblies of the lap belt shall be fabri- cated in a thorou8;hly workmanlike manner and shall be free of all defects that might adversely
26、 affect operation or strength. Appearance shall also be repre- sentative of best quality, and particular attention shall be given to freedom from burrs and sharp edges, heat treatment to specified strength, uniformity and adhesion of plating and solid film lubricants where specified, prevention of h
27、ydrogen embrittlement, proper alignment and secure retention of parts in assemblies. Webbing assemblies shall be free from loose, broken, or incomplete stitching, frayed or cut edges, and scuffed or melted areas other than hot-cut ends. 4 QUALITY ASSURANCE PROVISIONS Unless otherwise specified in th
28、e contract Except as otherwise specified . 4.1 -1itv for i- or purchase order, the contractor shall be responsible for the performance of all inspection requirements as specified herein. in the contract or purchase order, the contractor may use his own or any other facilities suitable for the perfor
29、mance of 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 speci- fioation where such inspections are deemed necessary to assure that supplies and services conform to prescribed req
30、uirements. All items shall meet all requirements of 4.1.1 -bilw for comliancQ sections 3 and 5. a part of the contractors overall inspection system or quality program. The absenoe of any inspection requirements in the specification shall not relieve the contractor of the responsibility of assuring t
31、hat all products or supplies submitted to the Government for acceptance comply with all requirements of the contract. known defective material, either indicated or actual, nor shall it commit the Government to acceptance of defective material. The inspection set forth in this specification shall bec
32、ome Sampling in quality conformance shall not authorize submission of 4.2 Wficatign of wectiom . The inspection requirements specified herein gre classified as follows: a. Materials inspection (4.4). b, First article inspection (4,5). c. Quality conformance inspection (4.6) Provided by IHSNot for Re
33、saleNo reproduction or networking permitted without license from IHS-,-,-MIL-B-7167 1b 7777906 0207487 7 M MIL-B-87167 (USAF) 4.3 d . The contractor shall insure 4.3.1 ,Jest eau iDment and iwection facilities that test and inspection facilities of sufficient accuracy, quality and quantity are establ
34、ished and maintained to permit performance of required inspections. . . Unless otherwise specified, all measurements 4.3.2 AtmOSDheriC conditiong and tests shall be made at the ambient conditions of temperature, relative humidity and barometric pressure prevailing at the test site. 4.4 Mate rials in
35、sDe ctiog . 4.4.1 Hateriala? processest and Darta . Materials, processes, and parts shall be inspected to ensure compliance with 3.3 and with the applicable requirements of the documents referenced herein. 4.4.1.1 * o. r . Each ferrous casting shall be subjected to the radiographic examination descr
36、ibed in 4.7.1.1. Each non- ferrous casting and load-carrying part other than pins and similar small turned parts with diameters of less than 0.25 inch shall be subjected after heat treatment, but before plating or coating to the magnetic particle or the dye penetrant examination described in 4.7.1.2
37、, using whichever process is appropriate for the material involved. 4.5 First a rticle inmectioq 4.5.1 First article test sa rnDles. First article test samples shall consist of at least three complete belts. The first articles shall be representative of the materials, processes, components, design,
38、construction, and workmanship to be usedin the production items. Each first article shall be identified with a tag that is plainly marked with the following information: Samples submitted by (contractors name) on (date) for first article inspection in accordance with the requirements of (this specif
39、ication number and applicable revision letter) under Contract No. . 4.5.2 Unless otherwise specified in the contract or purchase order (see 6.21, the first articles shall be subject to all the examinations and tests specified in table I. The first article sample for group D inspection shall be subje
40、cted to the tests in the following sequence: 4.7.16, 4.7.13, 4.7.11, and 4.7.10. The other first article samples shall be subjected in any sequence desired by the contractor to all the group A, B, C, E and F inspections, except that within group E tests except 4.7.20 shall be conducted last. Brst ar
41、t icle testinq . 4.5.3 First article inme ction reDort. Unless otherwise specified in the contract (see 6.21, a first article inspection report shall be prepared in accordance with MIL-STD-831. 9 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-B-
42、87167 (WAF) 4.6 insreotion . Quality conformance inspections shall consist of the individual tests and sampling plan specified herein. 4.6.1 not more than 350 lap belts plus the belts which shall be subjected to the destruotive lot acceptance tests (groups D, E and F) and thus become unfit for furth
43、er use (see 4.7.21). All the belts in a lot shall have been produced for the contraot under essentially the same conditions and submitted for acceptance at substantially the aame time. 4.6.2 Individuals groups A and C inspections, as specified in table I. A lot shall consist of the parts and assembl
44、ies for Each sample from each lot shall be subjected to the 4.682.1 Dirnensions_oloartsect- . The inspection level for the examination OP dimensions shall be S-1 of MIL-STD-105. The Acceptance Quality Level (AQL) shall be 0.4 defects per hundred units (dhu) for critical defects, 1.0 dhu for major de
45、fects, and 4.0 dhu for minor defects. Classification of defects shall be in accordance with table II. 4.6.3.1 the group B inspections, as specified in table I. B -. Two samples from each lot shall be subjected to 4.6.3.1 .i geat tse. The samples shall be subjected (before plating) to the hardness te
46、at described in 4.7.2.4. of MIL-STD-105. The AQL shall be 1.0 defects per 100 dhu. The sample unit and the unit for the expression of the lot size shall be the load-carrying parts for one belt. The inspection level shall be S-1 4.6.3.1,2 %face treated D-. examination of surface treated (plated, coat
47、ed, or passivated) parts described in 4,7,2.5. The inspection level shall be S-1 of MIL-STD-105. The AQL shall be 2.5 dhu. for the examination of surface treated parts shall be the surface treated parts of one belt. The samples shall be subjected to the The sample unit and the unit for the expressio
48、n of the lot size 4.6.3.2 -. group D inspections as specified in table I. the group D tests shall be 1.0 dhu for the webbing creep test, combined proof load, and temperature tests, and zero dhu for the ultimate pressure and strength tests. 4.6.3.3 . One sample per lot shall be subjected to the group
49、 E inspections as specified in table I, the group E tests shall be zero dhu for the 40-g dynamic load test with a negative-g strap, and one dhu for all other tests within group E. One sample per lot shall be subjected to the The acceptable quality levels for The acceptable quality level for 486.3.4 group F inspection listed in table I. group F test shall be zero dhu. 8 One sample per lot shall be subjected to the The acceptable quality level for the . Belts which 4.6.3.5 mo
