ARMY MIL-DTL-44477 A-1996 CONTAINER AERIAL DELIVERY GENERAL PURPOSE INDIVIDUAL EQUIPMENT《工业设备一般用途空中运输集装箱》.pdf

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1、MIL-DTL-44477A m 99999Ob 202b29b T7b m . MIL-DTL-44477A (GL) 9 September 1996 SUPERSEDING 8 November 1993 MIL-C-44477 (GL) DETAIL SPECIFICATION CONTAINER, AERIAL DELIVERY, GENERAL PURPOSE, INDIVIDUAL EQUIPMENT This specification is approved for use by the Natick Research, Development, and Engineerin

2、g Center, Department of the Army, and is available for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This document covers one type and size of a parachutists individual equipment container. 2. APPLICABLE DOCUMENTS 2.1 General. The documents listed in this sect

3、ion are specified in sections 3 and 4 of this specification. This section does not include documents cited in other sections of this specification or recommended for additional information or as examples. While every effort has been made to ensure the completeness of this list, document users are ca

4、utioned that they must meet all specified requirements documents cited in sections 3 and 4 of this specification, whether or not they are listed. 2.2 Government documents. 2.2.1 Drawing. The following Government drawing forms a part of this document to the extent specified herein. Unless otherwise s

5、pecified, the issue is that cited in the solicitation. Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Commander, U.S. Army Natick Research, Development, and Engineering Center, Natick, Attn: SS

6、CNC-UTE Natick, MA O 1760-501 7 by using the self-addressed Standardization Document Improvement Proposal (DD Fom 1426) appearing at the end of this document or by letter. AMSC N/A FSC 1670 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-4447

7、7A 9999906 202b297 902 MIL-DTL-44477A (GL) DRAWING U.S. ARMY NATICK RESEARCH, DEVELOPMENT AND ENGINEERING CENTER 11-1-6832 - Container, Aerial Delivery, General Purpose, Individual Equipment Engineering Center, ATTN: AMSSC-S-IMI, Natick, MA O1 760-501 7). (Copies of drawings are available from the U

8、.S. Army Natick Research, Development and 2.3 Order of mecedence. In the event of a conflict between the text of this document and the references cited herein, the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific

9、exemption has been obtained. 3. REQUIREMENTS 3.1 First article. When specified (see 6.2), a sample shall be subjected to first article inspection in accordance with 4.2. 3.2 Materials and components. Materials and components shall conform to the requirements on the applicable drawings, to subsidiary

10、 specifications and standards applicable thereto, and as specified herein. 3.2.1 Recvcled. recovered. or environmentally preferable materials. Recycled, recovered, or environmentally preferable materials should be used to the maximum extent possible provided the material meets or exceeds the operati

11、onal requirements, and promotes economically advantageous life cycle costs. 3.3 Construction. The construction shall conform in all respects to the drawing listed in Section 2 and all subsidiary drawings pertaining thereto, and as specified herein. 3.3.1 Stitchine. machine. All machine stitching sha

12、ll be as specified on the applicable drawings and as specified herein. c I 3.3.1.1 Types 301 and 308 stitching. Ends of all type 301 stitching shall be backstitched or overstitched not less than 1/2 inch in accordance with the required stitch pattern. Ends of type 308 stitching shall be secured by c

13、rowding a minimum of three stitches (accomplished by not allowing the materials to move) at the beginning and end of the stitching. Thread tension shall be maintained so that there will be no loose stitching resulting in the puckering of the material sewn. The lock shall be embedded in the materials

14、 sewn. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. MIL-DTL-44477A (GL) 3.3.1.1.1 Rerairs of tvpe 301 stitching. Repairs of type 301 stitching shall be as follows: a. When thread breaks or bobbin run-outs occur during the stitching, the stitch

15、ing shall be repaired by restarting the stitching a minimum of 1 inch (1/2 inch for box-x and W-W stitching) from the end of the stitching. L/ b. Thread breaks or two or more consecutive skipped or run-off stitches noted during inspection of the item (in-process or end item) shall be repaired by ove

16、rstitching. The stitching shall start a minimum of 1 inch from the defective area, (1/2 inch for box-x and W-W stitching), continue over the defective area, and continue a minimum of 1 inch (1/2 inch for box-x and W-W stitching) beyond the defective area onto the existing stitching. Loose or excessi

17、vely tight stitching shall be repaired by removing the defective stitching, without damaging the materials, and restitching in the required manner. L/ - 1 / When making the above repairs, the ends of the stitching are not required to be backstitched. 3.3.1.1.2 Repairs of type 308 stitching. Repairs

18、of type 308 stitching shall be in accordance with 3.3.1 .l. 1 a and 3.3.1.1.1 by except that the stitching shall overstitch the defective area a minimum of three stitches onto the existing stitches. 3.3.1.2 Automatic stitching. Automatic stitching machines may be used to perform any of the required

19、stitch patterns provided the requirements for the stitch pattern, stitches per inch, and size and type of thread are met, and at least three or more tying, overlapping, or back stitches are used to secure the ends of stitching. 3.3.2 Thread ends. All thread ends shall be trimmed to a maximum length

20、of 1/4 inch. 3.3.3 Setting of grommets. Holes shall be prepunched to receive the grommets. Holes prepunched to receive the grommets shall be smaller than the outside diameter of the grommet barrel so that the barrel must be forced through the hole. The grommet shall be securely clinched without cutt

21、ing the adjacent material. 3.3.4 Finishine of the iacketed wire roue ends. All wire rope ends shall be finished by either the melt method specified in 3.3.4.1 or by the dip method specified in 3.3.4.2, such that the ends are completely enclosed with the melted coating flush with the unmelted nylon j

22、acket. 3.3.4.1 Melt method. Heat the wire rope end nylon jacket with a suitable electrical heating element so as to melt the nylon over the end to form a smooth round surface. Remove any melted residue on the jacket surface with a fine abrasive material such that the surface is not damaged and is fi

23、nished smooth. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-DTL-44477A 9999906 2026299 785 D MIL-DTL-44477A (GL) 3.3.4.2 Dip method. Coat the wire rope end with a nylon II or nylon 6/6 powder. Heat the coated end for 1 O seconds at 405 It 1

24、5F using either an induction coil (2 to 4-inch) with an automatic timer control or an electric melting pot with an automatic temperature control (see 6.3). 3.4 Replacement of defective components. During the spreading, cutting and manufacturing process, components having material defects or damages

25、that are classified as defects in table I shall be removed from production and replaced with nondefective and properly matched components. 3.5 Repairs. Repairs such as mends, darns, patches, or splices are not permitted on the container. 3.6 Workmanship. The finished and assembled containers shall c

26、onform to the quality of the product established by this specification. 4. VERIFICATION 4.1 Classification of insDections. The inspection requirements specified herein are classified as follows: a. First article inspection (see 4.2) b. Conformance inspection (see 4.3) 4.2 First article inspection. W

27、hen a first article inspection is required (see 3.1 and 6.2) it shall be examined in accordance with 4.3. Sampling for first article inspection shall be as specified in the contract or purchase order (see 6.2). 4.3 Conformance inspection. Conformance inspection shall include the examination of 4.3.1

28、,4.3.2,4.3.3 and 4.3.4. Sampling for the inspections in 4.3.3 and 4.3.4 shall be as specified in the contract or purchase order (see 6.2). 4.3.1 Component and material inspection. Components and materials shall be inspected in accordance with all the requirements of referenced documents unless other

29、wise excluded, amended, modified, or qualified in this specification or applicable purchase document. 4.3.2 In-process inspection. Inspection of subassemblies shall be made to ascertain that construction details and dimensional requirements which cannot be examined in the finished product are in acc

30、ordance with specified requirements. The Government reserves the right to exclude from consideration for acceptance, any material or service for which in-process inspection has indicated nonconformance. 4.3.3 -. The end items shall be examined for visual defects. Each noncompliance shall be scored a

31、s a defect in accordance with table I. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-fiIL-DTL-44477A 999990b 202b300 227 D MIL-DTL-44477A (GL) TABLE I. End item visual defects Classification Examine Defect Major Minor Fabric Any hole (except dril

32、l holes), cut, or tear, weak places or broken yarns Exposed drill holes Webbing and tape Not firmly and tightly woven; edge Exposed end of tie-down tapes not Exposed end of nylon webbing or tape end frayed or scalloped dipped in wax as required not seared smooth as required Fastener tape, hook and p

33、ile Any hole, cut, or tear. Hooks missing or flattened; foreign matter or dirt impairing proper function Hardware Brcken or bent; corroded areas; burrs or Any required component not specified type Any required component not functioning, sharp edges or size improperly set or reversed Brass grommets C

34、linched excessively tight, cutting adjacent Insecurely clinched to a degree that grommet Washer installed on incorrect side of material Barrel split Loosely clinched, permitting grommet to rotate Was her omitted material may be detached from material freely within the hole Open seams and 1/2 inch or

35、 less run-Offs More than 1/2 inch 101 20 1 1 02 202 203 103 1 o3 105 106 107 1 O8 204 205 206 1 o9 207 110 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. MIL-DTL-44477A (GL) TABLE I. End item visual defects (contd.) Examine Defect Major Minor Cl

36、assification Binding NOTE: A seam shall be classified as open when one or more stitches joining a seam are broken or when two or more skipped stitches or run-Offs occur. On a double stitching seam, a seam shall be considered open when either one or both sides of the seam are open. Improperly or loos

37、ely applied showing End of binding not finished as specified raw edge of fabric or overlapped less than 1 inch Seam and stitch type Wrong seam or stitch type Stitch tension Loose, resulting in a loosely exposed top or bobbin thread; tight, resulting in excessive tightness of fabric on seams Stitches

38、 per inch One stitch less than minimum specified Two or more stitches less than One or two stitches in excess of maximum More than two stitches in excess of minimum specified specified maximum specified NOTE: Variation in the number of stitches per inch, caused by the operator speeding up the machin

39、e and pulling the fabric in order to sew over heavy places, heavy seams or in turning comers, shall be classified as follows: a. Within the major defect classification - minor defect b. Within the minor defect classification - no defect 111 208 112 113 209 114 210 115 6 Provided by IHSNot for Resale

40、No reproduction or networking permitted without license from IHS-,-,-MIL-DTL-44477A (GL) TABLE I. End item visual defects (contd.) Classification Examine Defect Mai or Minor Stitching margins Larger than specified by more than 3/16 inch for more than 2 inches Thread breaks Not overstitched as specif

41、ied NOTE: Thread breaks not overstitched shall be classified as open seams. Stitching ends Ends of stitching backstitched less than 112 inch (except where ends are turned under in a hem or held down by other stitching) Ends of stitching not backstitched Stitching Ani required row of stitching omitte

42、d W-W stitching: (except on W-W stitching) One or more rows of stitching omitted Length of stitching less than specified by more than 1/4 inch Components and Any component or required operation omitted or not as specified (unless otherwise classified herein) Needle chews Mends, darns, or patches Any

43、 turn under on stitched ends of webbing Turn under on ends of straps, chapes, and loops assembly not securely caught in W-W stitching less than specified by more than 1/8 inch Marking and Omitted, illegible, incorrect, misplaced, or size identification of characters not as specified Cleanness Notice

44、able spots or stains, i.e., grease, oil, ink, dirt not removed; thread ends not trimmed to 1/4 inch or less 21 1 212 213 116 117 118 119 120 121 122 123 214 215 216 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-44477A 999990b 202b303 T3b

45、= MIL-DTL-44477A (GL) TABLE I. End item visual defects (contd.) Classification Examine Defect Major Minor Jacketed wire rope Not specified type or size Ends not nylon coated or wire material not completely enclosed Surface of nylon coated end not smooth or flush with melted jacketed surface 124 125

46、126 Swaged wire rope Missing 127 sleeve Not specified type or size 128 Not swaged as specified 129 One sleeve swage omitted 217 Swaged excessively tight, cutting wire Swaged loosely, permitting sleeve to Two sleeve swages omitted 130 rope material 131 rotate freely 132 4.3.4 End item dimensional exa

47、mination. The end items shall be examined for conformance to the dimensions specified on the drawings. Only those dimensions that can be evaluated without damaging or disassembling the end items shall be examined. Any dimension not within the specified tolerance shall be classified as a defect. 5. P

48、ACKAGING 5.1 Packaging. For acquisition purposes, the packaging requirements shall be as specified in the contract or order (see 6.2). When actual packaging of materiel is to be performed by DoD personnel, these personnel need to contact the responsible packaging activity to ascertain requisite pack

49、aging requirements. Packaging requirements are maintained by the Inventory Control Points packaging activity within the Military Department or Defense Agency, or within the Military Departments System Command. Packaging data retrieval is available from the managing Military Departments or Defense Agencys automated packaging files, CD-ROM products, or by contacting the responsible packaging activity. 6. NOTES (This section contains info