DLA MIL-DTL-85361 A-2010 CARRYING CASE ASSEMBLIES INFLATABLE LIFE RAFT.pdf

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1、AMSC N/A FSC 4220 MIL-DTL-85361A 14 July 2010 SUPERSEDING MIL-C-85361(AS) 20 February 1980 DETAIL SPECIFICATION CARRYING CASE ASSEMBLIES, INFLATABLE LIFE RAFT This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification c

2、overs the requirements for seven types of inflatable life raft carrying case assemblies. 1.2 Classification. Inflatable life raft carrying case assemblies will be of the following types, as specified (see 6.2): Type I - Carrying Case Assembly, LRU-12/A Life Raft Type II - Carrying Case Assembly, LRU

3、-1/P Life Raft Type III - Carrying Case Assembly, LRU-13/A Life Raft Type IV - Carrying Case Assembly, LRU-14/A Life Raft Type V - Carrying Case Assembly, For Droppable LRU-15/A and F-2B Life Rafts Type VI - Carrying Case Assembly, For Wing installation of Twenty Man Life Rafts LRU-15/A Type VII - C

4、over/Carrying Case Assembly, Twenty Man Life Raft (C-130 Aircraft) LRU-15/A INCH-POUND Comments, suggestions, or questions on this document should be addressed to Defense Supply Center Philadelphia, ATTN: DSCP-NASA, 700 Robbins Avenue, Philadelphia, PA 19111-5096 or email to dscpg patch, or attachme

5、nt; and shall extend from just being visible to a maximum of one inch beyond the applicable edge. The adhesive shall not be allowed to remain in clots or permitted to extend in such a manner as to result in localized stiffness. There shall be no spots or stains resulting from the cementing operation

6、. The cemented areas shall not contain any trapped air, channels, edge lifts, or excessive wrinkling. 3.4.4 Seams and stitching. Unless otherwise specified, all the seams and stitching used in fabrication shall conform to applicable drawing requirements; and shall be accomplished with Stitch Type 30

7、1 conforming to ASTM D6193, with 6 to 10 stitches per inch. All the seam edges shall be properly forced out and shall not contain any folds. No seam shall be twisted, puckered, or pleated, and no part of the container shall be caught in an unrelated operation or seam. All the thread ends shall be tr

8、immed to a length of 1/4 to 3/8 inch. Each row of stitching shall be straight and parallel to the seam edge. The straightness of the stitching, in any row, shall be maintained within a tolerance of 1/32 inch. The ends of the stitching that are not caught in other seams or stitching shall be securely

9、 backstitched, by overlapping on itself for at least 1/2 inch. Thread breaks, skips, and run-offs shall be overstitched not less than one inch. The thread tension shall be maintained so that there shall not be any loose or overly tight stitching, and the lock shall be imbedded in the materials sewn

10、together. There shall be no spots or stains resulting from the sewing operation. 3.4.4.1 Bartacking. Unless otherwise specified, the number of stitches per bartack shall be based proportionally upon 7/8 inch long barracking containing a minimum of 49 stitches. The length and location of each bartack

11、 shall be as specified in applicable drawings. 3.5 Color. The color of the carrying case and components shall be as specified in applicable drawings. 3.6 Markings. Markings shall be in accordance with MIL-STD-130. Ink, color, size, and location of markings shall be as specified in applicable drawing

12、s. Letters and numerals 1/4 inch or less in height shall not be stenciled. Serial number for containers shall be in accordance with 3.6.1. All markings shall be thoroughly dry prior to packing or packaging. Markings may be applied directly to the specified area, or to a patch securely adhered to the

13、 specified area. Material and color of the patch, if used, shall be the same as the carrying case to which applied. 3.6.1 Serial numbers. Unless otherwise specified, each container shall be identified by a serial number which shall be assigned by the manufacturer. Serialization shall be by a block o

14、f consecutive number to cover the entire acquisition quantity. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MILDTL85361A 5 3.7 Visual. When inspected as specified in 4.4.1, the carrying case assemblies, including components, shall conform to the r

15、equirements of Paragraphs 3.2 through 3.6. The Classification of Defects for the Visual Examination of the Carrying Case Assemblies, Table II, shall be used to classify and enumerate the defects found. 3.8 Dimensional. When inspected as specified in 4.4.2, the dimensions of the carrying cases, inclu

16、ding components; shall conform to applicable drawing requirements. The list of defects for finished dimensions of the carrying case assemblies, Table III, shall be used to classify and enumerate the defects found. 3.9 Performance inspections. 3.9.1 Strength of attachment of the pull cable assembly.

17、When inspected as specified in 4.5.1, each locking pin, ball, swage, and loop shall withstand a pull of 100 pounds without slippage or deformation. 3.9.1.1 Permanent set of the locking pins. When inspected as specified in 4.5.1.1, each locking pin shall withstand a load of 8 pounds, without taking a

18、 permanent set. 3.9.2 Strength of attachment of the carrying case handles. When inspected as specified in 4.5.2, each handle shall withstand a pull of 250 pounds without tearing or separation. 3.10 Workmanship. After completion of the final assembly the carrying cases shall be thoroughly cleaned and

19、 all loose thread, lint, and foreign matter shall be removed. The grommets and snap fasteners shall be clinched without distortion, damage, splitting, or cutting of the cloth, webbing, or tape, as applicable. The metal components shall not be misaligned, nor shall they contain any sharp edge, crack,

20、 dent, burr, nick, or sliver. The carrying cases shall not contain any nonspecified hole, abraded area, tear, cut, mend, needle chew, spot, or stain. The carrying cases and components, furnished under this specification, shall conform to the quality and grade of the product as set forth in the speci

21、fication. The occurrence of defects shall not exceed the acceptance criteria established herein. 4. VERIFICATION. 4.1 Classification of inspection. The examination and testing of the assemblies shall be classified as follows: (a) First article inspection. First article inspection consists of examina

22、tions and tests performed on samples which are representative of the production item after award of a contract to determine that the production item conforms to the requirement of this specification (see 3.1, 4.2, 4.2.1, and 4.2.1.1). (b) Conformance inspection. Conformance inspection consists of ex

23、aminations and tests performed on individual products or lots to determine conformance of the products or lots with the requirements set forth in this specification (see 4.3 through 4.3.1.2). 4.2 First article inspection. The first article inspection of the carrying case assemblies shall consist of

24、all the examination and tests for all the requirements of this specification. 4.2.1 First article samples. Unless otherwise specified, as soon as practicable after the award of the contract or order, the manufacturer shall submit two carrying case assemblies of the type specified in the contract or

25、order. The samples shall be representative of the construction, workmanship, components, and materials to be used during production. When a contractor is in continuous production of the type specified, from contract to contract, submission of additional first article samples on the new contract may

26、be waived at the discretion of the procuring activity (see 6.2). Approval of the first article inspection samples or the waiving of the first article inspection does not preclude the requirements for performing the conformance inspection. The first article inspection samples shall be furnished to th

27、e Government as directed by the contracting officer (see 6.2). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MILDTL85361A 6 4.2.1.1 First article sample disposition. Upon completion of the first article inspection, recommendations and comments pert

28、inent for use in monitoring production will be forwarded by the Government activity responsible for the inspection program (see 6.2) to the contracting officer. One of the approved first article samples will be returned to the manufacturer for reference in monitoring production. The other sample wil

29、l be consumed or destroyed in the inspection program, and shall not be considered as a part of the quantity to be delivered under the contract. 4.3 Conformance inspection. The sampling and inspection levels shall conform to ASQ Z1.4. The conformance inspection shall consist of the following: Pull ca

30、ble assembly strength of attachment and permanent set Visual examination of the carrying case assemblies Dimensional examination of the carrying case assemblies 4.3.1 Sampling. 4.3.1.1 Inspection lot. 4.3.1.1.1 Carrying case assembly. An inspection lot size shall be expressed in units of one carryin

31、g case assembly and components of one type made essentially under the same conditions and from the same materials. The sample unit shall be one carrying case assembly and components of one specific type. 4.3.1.1.2 Adhesive. An inspection lot shall be expressed in units of one batch of adhesive. An i

32、nspection lot shall consist of all the batches of the adhesive used by the manufacturer during one days production of the carrying case assemblies (see 3.4.2). The sample unit shall be one batch of the adhesive used during one days production of the carrying case assemblies. 4.3.1.2 Sampling for exa

33、minations and tests of the carrying case assemblies and components. The sample size, examinations and tests required for the carrying case assemblies and components shall be as specified in Table 1. However, the Acceptance Quality Limit (AQL) shall be as specified in the contract. 4.4 Inspection met

34、hods. 4.4.1 Visual examination. Each carrying case assembly, including components, shall be visually examined for conformance to the requirements of paragraph 3.7. 4.4.2 Dimensional examination. Each carrying case assembly including components, shall be dimensionally checked for conformance to the r

35、equirements of paragraph 3.8. 4.5 Performance. 4.5.1 Strength of attachment of the pull cable assembly. The strength of attachment of each locking pin, ball, swage, and loop to the cable shall be determined by means of a suitable testing apparatus containing a fixed and movable jaw. The speed of the

36、 movable jaw, under no load, shall be 12 +1/2 inches per minute. To determine the strength of attachment of the locking pins, ball, and swage, insert the cable in the fixed jaw and the item being tested in the movable jaw and apply a load of 100 pounds. When testing the loop, insert a metal rod thro

37、ugh the loop prior to attachment to the movable-jaw. The items tested shall conform to the requirements of paragraph 3.9.1. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MILDTL85361A 7 TABLE I. Sample size, examinations and tests of the carrying ca

38、se assemblies. Paragraph Sample size 1/ Inspection Requirement Method Pull cable assembly, strength of attachments and permanent set 3.9.1 and 3.9.1.1 4.5.1 and 4.5.1.1 Inspection Level S-1 Visual examination 3.2 through 3.7 and applicable drawings 4.4.1 Inspection Level II Dimensional check 3.8 and

39、 applicable drawings 4.4.2 Inspection Level S-3 1/ This inspection may be performed either at the contractors or subcontractors plant. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MILDTL85361A 8 TABLE II. Classification of defects for the visual e

40、xamination of the carrying case assemblies. Defects Major Minor a. Any weakening defect such as smash, multiple float, loose slub, needle chew, or abraded area: (1) Seriously affecting serviceability or appearance (2) Not seriously affecting serviceability or appearance X X b. Color of any component

41、 not as specified or contains one or more shade bars X c. Any thread end not trimmed to a length of 1/4 to 3/8 inch or loose thread ends X d. Any spot or stain: (1) Seriously affecting serviceability or appearance (2) Not seriously affecting serviceability or appearance X X e. Any non-specified hole

42、, cut, tear, mend or burn. X f. Any cut edge of the uncoated nylon fibrous materials not seared or contains sharp edges X Metallic components. a. Any surface rough, misaligned, or contains any crack, nick, burr, sharp edge, dent, or sliver X b. Any surface unclean or contains embedded foreign matter

43、 X c. Any loose, detached, or otherwise not securely retained X Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MILDTL85361A 9 TABLE II (Continued) Defects Major Minor Metallic components (contd) d. Any malformed, corroded, fractured, broken, chipped

44、, bent, or distorted X e. Any improperly finished: (1) Affecting serviceability or appearance (2) Not affecting serviceability or appearance X X f. Any snap fastener or grommet misplaced or improperly clinched resulting in cutting of the cloth, tape, or webbing, as applicable X g. Any snap fastener

45、mismated or failing to function properly when snapped closed and unsnapping each of the snap fasteners at least three times X h. Any part of the slide fastener assembly bent, broken, or the movement of the slider interfered with when checked for proper function by opening and closing the slide faste

46、ner at least three times, along its entire length X Components and assembly a. Any component not as specified or any defect of a component or defect of assembly not herein classified: (1) Affecting serviceability or appearance (2) Not affecting serviceability or appearance X X b. Any component, comp

47、onent part, or required operation omitted or any operation improperly performed not herein classified: (1) Affecting serviceability or appearance (2) Not affecting serviceability or appearance X X Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MILDT

48、L85361A 10 TABLE II (Continued) Defects Major Minor Seams and stitching a. Accuracy of seaming: (1) Any seam, hem, or attachment of any component twisted, puckered, pleated, or caught in an unrelated operation or stitching any seam edge not properly forced out or contains any fold (2) Ends of stitch

49、ing that are not caught in other seams or stitching: (a) Not securely back stitched (b) Secure but backstitched for a distance less than 1/2 inch or the backstitching is not overlapped on itself (3) Thread breaks: (a) Not securely over stitched (b) Secure but overstitched for a distance less than one inch X X X X X b. Gage of stitching: (1) Any stitching irregular, unevenly gaged or various stitching no