NAVY MIL-H-85478 A-1982 HANDLE BEADED INFLATION ASSEMBLY《充气装配操纵》.pdf

1、. P a MIL-H-8547A 42 m 7799706 O236507 2 m - i/ c-IS -50 MI L-H -85478A( AS I 19 July 1982 - - MIL-H-85478( AS) 15 June 1981 MILITARY SPECIFICATION HANDLE, BEADED, INFLATION ASSEMBLY This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Sco

2、pe, This specification covers the require- ments for two types of inflation assembly beaded handles. 1.2 Classification. The inflation assembly beaded handles shall be of the following types (see 6.2): TYPE I - II AP PL I CATION FLU-8A/P Inflator LPU-21 B/P Li fe Preserver LRU-18IU Life Raft 2. APPL

3、ICABLE DOCUMENTS 2.1 Issue of documents. The following documents of the issue in effect on date of invitation for bids or request for proposal, form a part of this specification to the extent specified herei n. SPECIFICATIONS Federal PPP-B-636 Boxes, Fi brboard Beneficial comments (recommendations,

4、additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Commanding Officer, Engineering Specifications and Standards Department (Code 93) , Naval Air Engineering Center, Lakehurst, NJ 08733, by using the self-addressed Standardization Docum

5、ent Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. 6 FSC 4220 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-STANDARDS Federal FED-STD-751 . Stitches, Seams, and Stitchings Militarv MIL-STD-105 Sampling Proce

6、dures and Tables for Inspection by Attributes Markings for Shipment and Storage MIL-STD-129 DRAWINGS Naval Air Systems Command 97 5AS 12 1 Handle, Beaded, Inflation Assembly (Copies of specifications, standards, drawings, and publications required by contractors in connection with specific acquisiti

7、on functions should be obtained from the acquiring activity or as directed by the contracting officer.) 3. REQUIREMENTS 3.1 First article. When specified (see 6.2), the contractor shall furnish sample units for first article inspection and approval (see 4.3 and 6.3). 3.2 Materials and components. Ma

8、terials and compo- nents shall conform to the applicable specifications and drawings as listed or required herein. 3.3 Design and construction. The beaded handles shall be constructed in accordance with NAVAIR Drawing 975AS121. 3.3.1 Stitching. All the machine stitching shall be accomplished with St

9、itch Type 301 of FED-STD-751. eight to ten stitches per inch. Unless otherwise specified, the ends of the stitching shall be backstitched by overlapping on itself, a minimum of 1/2 inch. back of the break, a minimum of 1/2 inch. The thread tension shall be maintained so that there shall not be any l

10、oose or tight stitching and the lock shall be embedded in the materials sewn together. to 3/8 inch. There shall be Thread breaks shall be backstitched, All the thread ends shall be trimmed to a length of 1/4 34 Breaking strength of the lanyards, When tested as specified in 4.5.3, the lanyards breaki

11、ng strength shall conform to Table III. 3.5 Workmanship. The beaded handle shgll be uniform in quality and free from defects and irregularities which could adversely affect performance, reliability or durability. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license

12、from IHS-,-,-. MIL-H-85478A 42 m 7779706 023b.507 b m MIL-H-85478A(AS) 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection. Unless otherwise specified in the contract, the contractor is responsible for the performance of all inspection requirements as specified herein, Except as otherw

13、ise specified in the contract, 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 inspections set forth in the specification where such inspections are deemed necessary to assu

14、re supplies and services conform to prescribed requirements. The Government reserves the right to perform any of 4.2 Classification of inspection. The inspection requirements specified herein are classified as follows: 1. First article inspection (see 4.3). 2. Quality conformance inspection (see 4.4

15、). 4.3 First article. 4.3.1 First article samples. Unless otherwise speci- fied, as soon as practicable after award of the contract or order, the manufacturer shall submit three beaded handles. The samples shall be representative of the construction, workmanship, compo- nents, and materials to be us

16、ed during production. When a manufac- turer is in continuous production of these beaded handles from contract to contract, submission of further first article samples on the new contract may be waived at the discretion of the acquiring activity (see 6.2d). waiving of the first article inspection doe

17、s not exempt the require- ments for performing the quality conformance inspection. The first article samples shall be forwarded as specified in the contract or order (see 6.2e). Approval of the first article samples or the 4.3.2 First article sample approval. Upon completion of the first article ins

18、pection program, recommendations and com- - ments pertinent for use in monitoring production, will be forwarded by the Government activity responsible for the inspection program (see 6.2e) to the contracting officer. One approved beaded handle will be returned to the manufacturer for use in monitori

19、ng produc- tion. article inspection and shall not be considered as part of the quantity to be delivered under contract. will be retained by the inspection laboratory for reference. One beaded handle will be consumed or destroyed in the first The other beaded handle 4.4 Quality conformance inspection

20、. The sampling and inspection levels shall conform to MIL-STD-105. conformance inspection shall consist of the following: The quality 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-H-85478A 42 9799906 0236510 2 m - - MIL-H-85478A(AS) Visual In

21、spection Dimensional Inspection Breaking Strength of the Lanyards Preparation for Delivery 4.4.1 Sampling 4.4.1.1 Inspection lot. The inspecton lot size shall be expressed in units of one beaded handle made from the same material and under the same conditions, one beaded handle, The sample unit shal

22、l be 4.4.1.2 Preparation for delivery. The inspection lot size shall be expressed in units of one fully prepared shipping container, containing one type of beaded handle. The sample unit shall be one shipping container fully prepared for delivery except that it need not be sealed. 4.5 Inspection met

23、hods, The inspection methods, sample size and acceptance criteria shall conform to Table I. 4.5.1 Visual examinations. Each beaded handle shall be examined for critical defects to determine conformance to this specification. lot, shall be examined visually for minor defects to determine conformance

24、to this specification. defects, Table II, shall be used to classify and enumerate the defects found. Each beaded handle, selected as a sample unit from a The classification and list of 4.5.2 Dimensional examination. Each of the beaded handles selected as a sample unit from the lot, shall be thorough

25、ly - checked dimensionally by se of any suitable measuring device to determine conformance to this specification. Table II, shall be used to enumerate the defects found. The list of defects, 4.5.3 Breaking strength of the lanyards. The breaking strength of the lanyard shall be determined by testing

26、in a suitable inspection apparatus with a no-load speed of 12 + 1/2 inches per minute. The test will be. completed when failureoccurs. The inspection apparatus shall have jaws to secure the webbing of the beaded handle and a 1/2 inch diameter mandrel for the lanyard, The jaws shall grasp the beaded

27、handle webbing at the end opposite the 975AS121-2 lanyard. For the Type I handles, only the lanyard under test shall be looped on the mandrel, and neither the releasing pin, over-hand knot nor 1arkI.s head knot will be installed on the 975AS121-5 lanyard. Test results shall conform to requirements s

28、et forth in Table III. 4.5.4 Preparation for delivery. Each of the fully prepared shipping containers shall be visually examined to determine that the packaging, packing, and marking conform to this specifica- tion. The list of defects, Table II, shall be used to classify and enumerate defects. 4 Pr

29、ovided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-5. PACKAGING 5.1 Packaging. Packaging shall be level A or minimum protection, as specified (see 6.2f). 5.1.1 . Level A. Each beaded handle shall be placed into a clear polyethylene bag along with an ident

30、ification label. 5.1.2 Minimum protection. The beaded handle of one type shall be packaged to afford the minimum degree of protection necessary to prevent damage during shipment under normal environ- mental conditions and commercial modes of transportation. 5.2 Packing. Packing shall be level A or m

31、inimum protection as specified (see 6.2f). 5.2.1 Level A. Fifty beaded handles, packaged as specified in 5.1, shall be packed in a fiberboard shipping container, except that the fiberboard container shall be weather-resistant class, variety SW, grade V3c and V3S. In addition, each container shall be

32、 reinforced with flat steel strapping or tape banding in accordance with the appendix to PPP-B-636. 5.2.2 Minimum protection. The packaged beaded handles shall be packed in a manner that will insure safe transportation at the lowest rate to the point of delivery. Containers shall conform to the mini

33、mum requirements of the rules and regulations applicable to the mode of transportation selected. 5.3 Marking. Unit and shipping containers shall be marked in accordance with the requirements of MIL-STD-129. 6. NOTES 6.1 Intended use. Beaded handles together with the appropriate inflation device are

34、intended for use as emergency and life support equipment by personnel forced down at sea. 6.2 Acquisition requirements. Acquisition documents shall specify the following: a. Title, number, type and date of this cpeci- f ication. b. Government part number. c. Quantity desired. d. Whether first articl

35、e inspection is waived (see 4.3.1). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-H-8547A 42 779770b 0236532 b e. Name and address of the first article inspection laboratory (see 4.4.1); including the Government activity responsible for conduct

36、ing the inspection program (see 4.3.2). f, Selection of applicable levels of packaging and packing (see 5.1 and 5.2). 6.3 First article. When a first article is required, it shall be tested and approved under the appropriate provisions of 7-104.55 of the Defense Acquisition Regulations. first articl

37、e shall be a first production item. shall consist of three units. The contracting officer shall include specific instructions in all acquisition instruments, regarding arrangements for examinations, test and approval of the first article. The The first article Preparing activity Navy - AS (Project N

38、o. 4220-N286) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-H-854 7 8A (AS) Paragraph Method TABLE I. Quality conformance inspection. Sample Accep tance Size - i/ Criteria Inspect ion Visual Dimensional Inspect ion Level S-1 Preparation for Del

39、ivery Breaking Strength of Lanyard ACC O REJ 1 - Requirement Section 3 and Applicable Drawings Section 3 and Applicable Drawings Section 5 Para 3.4 4.5.1 4.5.2 4.5.4 Levei II for minor defects Inspection Level S-3 Inspection Level S-2 AQL of 15.0 defects per 100 units AQL of 10.0 defects per 100 uni

40、ts AQL of 2.5 defects per 100 units 4.5.3 I - l/ The sample size shall be based on the applicable sample size code letter corresponding to the specified level in MIL-STD-105. TABLE II. Classification of defects for visual examination. CRITICAL 1. Stitching on beaded handle not as specified. 2. Any n

41、on-specified hole, cut or burn. 3. 4. Any snap fastener missing, improperly oriented or clinched Any missing or extra beads on handle. or otherwise defective. MINOR 1. Any cut edge of webbing not seared or containing sharp edge. 2. The snap fasteners will be checked for proper function, position and

42、 alignment. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-H-8547 8A (AS) TABLE III. Breaking strengths, L Cord 975AS121-2 975AS121-5 - i/ 9 75AS 12 1- 11 140 lbs 100 lbs 975AS121-12 140 lbs NIA - i/ Test shall be performed without Releasing Pin, Overhand Knot and Larks Head Knot. *U.S. GOVERNMENT PRINTING OFFICE1 1982-506-022/3750 8 -. - ”. c a Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-