1、1 INCH-POUND I MIL-C-43827D 30 March 1990 SUPERS ED ING MIL-C-43827C 26 June 1986 MILITARY SPECIFICATION CASE, SMALL ARMS AMMUNITION, 30-ROUND MAGAZINE (M-16 RIFLE), LC-1 This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This spe
2、cification covers one type and size of ammunition case, fabricated from Olive Green nylon duck, webbing, and tape, with miscellaneous metallic hardware and plastic flap closure. 2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Specifications, standards, and handbooks. The following specificat
3、ions, standards, and handbooks form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those listed in the issue of the Department of Defense Index of Specifications and Standards (DODISS) and supplement thereto, cited in the solicit
4、ation (see 6.2). Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: U.S. Army Natick Research, Development, and Engineering Center, Natick, MA 01760-5014 by using the self-addressed Standardization
5、 Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. AMSC N/A FSC 8465 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Licensed by Information Handling Services- MIL-C-43827D BY 17906680 T MIL-C-43827D SPECIFICATfONS FEDE
6、RAL A-A-203 - Paper, Kraft, Untreated L-P-390 - Plastic, Molding and Extrusion Material, Polyethylene and Copolymers (Low, Medium, and High Dens i t.y ) V-T-285 - Thread, Polyester DDD-L-20 - Label: For CSothing, Equipage, and Tentage PPP -B -63 6 - Boxes, Shipping, Fiberboard (General Use) MILITARY
7、 MIL-W-4088 MIL-T-5038 MIL-W-5625 - MIL-H-9890 - MIL-F-10884 - MIL-E-20652 /1 - MIL-E-20652 /3 - MIL-W-27265 - MIL-L-35078 - MIL-C-43375 . - MIL-F-43514 - Webbing, Textile, Woven Nylon Tape, Textile and Webbing, Textile, Reinforcing, Webbing, Textile, Nylon, Tubular Hardware, Individual Load Carryin
8、g Equipment: and Fasteners, Snap Eyelets, Metallic, Rolled Flange Type; and Eyelet Eyelets, Metallic, Telescopic Type Webbing, Textile, Woven Nylon Impregnated Loads, Unit: Preparation of Semiperishable Nylon Hardware, Miscellaneous Washer Subsistence Items; Clothing, Personal Equipment and Equipage
9、; General Specification.FoY Cloth, Duck, Nylon, 12.5 Ounce Fastener, Plastic, for Equipage Items STANDARDS FEDERAL FED-STD-751 - Stitches, Seams,and Stitchings MIL I TARY MIL-STD-105 - Sampling Procedures and Tables for Inspection by MIL-STD-129 - Marking for Shipment and Storage MIL-STD-130 - Ident
10、ification Marking of U.S. Military Property MIL-STD-147 - Palletized Unit Loads MIL-STD-731 - Quality of Wood Members for Containers and Pallets Attributes 2 Licensed by Information Handling ServicesMIL-C-43827D 84 = 7779706 0423683 1 MIL-C-43 827D (Unless otherwise indicated, copies of federal and
11、military specifications, standards, and handbooks are available from the Order Desk, Bldg. 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094.) tandardization Documents 2.1.2 Other Government documents, drawings, and publications. The following other Government documents, drawings, and publications
12、 form a part of this document to the extent specified herein. Unless otherwise specified, the issues are those cited in the solicitation. DRAWINGS U.S. ARMY NATICK RESEARCH, DEVELOPMENT, AND ENGINEERING CENTER 2-2-306 - Case, Small Arms Ammunition, 30-Round Magazine M-16 Rifle, LC-1 Assembly 2-2-30
13、7 - Case, Small Arms Ammunition, 30-Round Magazine M-16 Rifle, LC-1; Sub-Assemblies and Sections 2-2-308 - Case, Small Arms Ammunition, 30-Round Magazine M-16 Rifle, LC-1; Patterns (Copies of drawings are available from the U.S. Amy Natick Research, Development, and Engineering Center, ATTN: STRNC-E
14、MSS, Natick, MA 01760-5014.) 2.2 Non-Government publications. The following documents form a patt of this document to the extent specified herein. Unless otherwise specified, the issues of the documents which are DOD adopted are those listed in the issue of the DODISS cited in the solicitation. of d
15、ocuments not listed in the DODISS are the issues of the documents cited in the solicitation (see 6.2). Unless otherwise specified, the issues AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) D 3951 - Standard Practice for Commercial Packaging (Application for copies should be addressed to the Ameri
16、can Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103-1187.) (Non-Government standards and other publications are normally available from the organizations that prepare or distribute the documents. These documents also may be available in or through libraries or other infor
17、mational services. 1 2.3 Order of precedence. In the event of a conflict between the text of this specification and the references cited herein the text of this specification takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a speciEic exemption h
18、as been obtained. 3 Licensed by Information Handling ServicesMIL-C-43827D 3. REQUIREMENTS 3.1 First article. When specified (see 6.2), a sample shall be subjected to first article inspection (see 6.3), in accordance with 4.3. 3.2 Samples. Samples of the end item, when furnished, are solely for guida
19、nce and information to the contractor (see 6.4). specificqtion may appear in the sample, in which case this specification shall govern. practical as long as it meets the requirements of this specification. Variations from this 3.3 Material. It is encouraged that recycled material be used when 3.3.1
20、Cloth, duck, nylon. The 12.5 ounce nylon duck cloth shall be dyed Olive Green 106, and shall conform to class 2 of MIL-C-43375, except that the dimensional stability requirement shall be 3.5 maximum and the air permeability requirement shall be 4.0 maximum (see 6.6). 3.3.2 Tape, nylon. The nylon tap
21、e shall be dyed Olive Drab 7 and shall conform to type III, 1 inch wide of .MIL-T-5038, 3.3.3 Webbing, woven nylon. The 9/16 inch, type I; the 3/4 inch, type Ia; and the 2-1/4 inch, type VIIIc webbing shall conform to the requirements of dyed Olive Drab 7 to match the standard sample (see 6.4). MIL-
22、W-4088. The type VIIIc webbing shall be class 2. The webbings shall be 3.3.3.1 Resin treatment. The 9/16, 3/4, and 2-1/4 inch webbing shall be resin impregnated to conform to class R of MIL-W-27265. 3.3.4 Thread, polyester. The polyester thread shall conform to types I, class 1, .sub-class B of V-T-
23、285. Sizes shall be as follows: For all stitching except overedging, bartacking, binding, and zig zag - Size F For overedging, bartacking, binding, and zig zag - Size E 3.3.4.1 Color. The thread shall be dyed Olive Drab S-1 (C.A. 66022) and shall show fastness to weathering. equal to or better than
24、the standard sample (see 6.4). fastness to weathering. When no standard sample is available, the thread shall show “good“ 3.3.5 Keeper with slide. The keeper shall be steel, black, and shall conform to type X of MIL-H-9890. 3.3.6 Eyelets, aluminum, black. The black enameled aluminum eyelets shall co
25、nform to Dash No. ABE 131 of MIL-E-20652/1. 4 Licensed by Information Handling ServicesMIL-C-43827D 3.3.7 Fastener, snap. The snap fastener shall conform to style 2A, finish 2 of MIL-F-10884. eyelet and the female component shall consist of a size 1 button and socket. The male component shall consis
26、t of a stud and size 1 3.3.8 Eyelet and washer. The eyelet and washer shall conform to dash numbers BBE 117 and BBW 101, respectively, of MIL-E-20652/1; or as an alternate, eyelet and washer conforming to dash numbers BBT 307 and BBT 308, respectively, of MIL-E-20652/3 may be used. 3.3.9 Fastener, p
27、lastic. The plastic fastener shall be black and shall conform to MIL-F-43514. 3.3.10 Polyethylene stiffener. The stiffener shall be made from 0.040 5 0.007 inch thick, high density virgin polyethylene of natural color conforming to type I, class H, grade 3 of L-P-390 except the melt index shall be 0
28、.10 to 1.0 inclusive. The stiffener may be fabricated from sheet stock or molded to size with its edges finished smooth. The stiffeners fabricated from sheet stock shall be produced in such a manner that the long edges of the pieces shall be parallel with the direction of extrusion (the long edges)
29、of the roll of material from which they are fabricated. The edges shall be smooth and free from cracks and sharp corners. 3.3.11 Webbing, textile, nylon, tubular. The 3/4 inch tubular nylon webbing shall be used in the alternate method of constructing the support strap. The webbing shall conform to
30、the requirements of MIL-W-5625 and shall be dyed olive drab to match the standard sample (see 6.4). The webbing shall be resin impregnated to conform to class R of MIL-W-27265. 3.4 Construction. The construction shall conform in all respects to the drawings listed in section 2 and shall be as specif
31、ied herein. 3.4.1 Patterns. Standard patterns for textile components other than tape or webbing are shown full scale on drawings and provide allowances for all seams. The standard patterns shall be used as a guide for cutting working patterns. The standard patterns shall not be altered in any way. 3
32、.4.2 Cutting of components. Components covered by a pattern including lengths of fastener tape and webbing components for which the lengths are defined by location marks on the applicable pattern, shall be cut within -0, + 1/8 inch of the applicable pattern, except the cut length of the reinforcemen
33、t tapes under the front stiffener shall be cut long enough to allow for stitching take-up. 3.4.3 Stitches, seams, and stitchings. All stitching, except bartacking, shall conform to FED-STD-751 as follows: For all stitching except overedge stitching and zig zag stitching 5 Stitch type 301, 8 to 10 st
34、itches per inch Licensed by Information Handling ServicesMIL-C-43827D For overedge stitching For zig zag stitching Stitch type 503 or 504, 8 to 10 stitches per inch with 311 6 minimum gage Stitch type 304, 3/16 inch minimum gage with 10 to 12 stitches per inch determined by counting points on both s
35、ides of row of s t i t ching 3.4.3.1 Type 301 stitching. Ends of stitching shall be backstitched or overstitched 1 inch minimum except when caught in other stitching or turned under in a hem. Thread tension shall be maintained so that there will be no loose stitching resulting in loose bobbin or top
36、 thread or excessively tight stitching resulting in puckering of the materials sewn. imbedded in the materials sewed, The lock shall be 3.4.3.1.1 Repairs of type 301 stitching. Repairs of type 301 stitching shall be as follows: a. When thread breaks or bobbin run-outs occur during sewing, the stitch
37、ing shall be repaired by restarting the stitching a minimum of 1 inch behind the end of stitching. i/ b, Thread breaks or two or more consecutive skipped or runoff stitches noted during inspection of the item (in-process or end item) shall be repaired by overstitching. The stitching shall start a mi
38、nimum of 1 inch before the defective area, and continue a minimum of 1 inch beyond the defective area onto the existing stitching, Loose or excessively tight stitching shall be repaired by removing the defective stitching, without damaging the materials, and restitching in the required manner. L/ -
39、i/ When making the above repairs, the ends of the stitching are not requ to be backstitched. red 3.4.3.2 Types 503 and 504 overedge stitching. Thread tension shall be maintained so that there will be no loose stitching. All repairs shall be in accordance with 3.4.3.1.la and 3.4.3.1.10 except substit
40、ute 3/4 inch for 1 inch wherever 1 inch appears. 3.4.3.3 Type 304 zig zag stitching, Thread tension shall be maintained so Repairs shall be that there will be no loose-or excessively tight stitching. in accordance with 3.4.3.1.1a and 3.4.3.1.1b except the stitching shall overstitch the defective sti
41、tching area a minimum of three stitches onto the existing stitching. 6 Licensed by Information Handling ServicesMIL-C-43827D 8LJ = 7777706 0421b5 7 MIL-C-43827D 3.4.3.4 Automatic stitching. Automatic stitching machines may be used to perform any of the stitch patterns provided the requirements for t
42、he stitch pattern, stitches per inch, and size and type of thread are met; and at least three tying, overlapping, or backstitches are used to secure the ends of the stitching. 3.4.3.5 Lubrication of thread. There shall be no lubrication of the thread prior to or during sewing (see 4.4.1.1). 3.4.3.6
43、Bartacks. Unless otherwise specified, bartacks shall be as specified on the applicable drawing and as follows: Length Width 112 inch + 1/16 1/8 inch + 1/32 314 inch z 1/16 118 inch 5 - 1/32 Stitches per bartack 28 42 Bartacks shall be free from thread breaks and loose stitching. 3.4.3.7 Thread ends.
44、 All thread ends that are visible on the finished item shall be trimmed to a length of not more than 1/4 inch. 3.4.4 Fusing of ends of synthetic tape and webbing. synthetic tape and webbing shall be fused. and webbing ends. shall be capable of providing sufficient heat to provide a smooth edge and w
45、ith the cut ends of the tape yarns all fused together. All cut ends of The apparatus used to fuse the tape 3.4.5 Setting of eyelets. Holes shall be prepunched to receive the eyelets. Holes prepunched to receive the eyelets shall be smaller than the outside diameter of the eyelet barrel so that the b
46、arrel must be forced through the hole. 3.4.5.1 Eyelets with washer, brass. The brass eyelets with washer specified in 3.3.8 shall be securely clinched in a manner that will prevent detachment from or cutting of the surrounding material. clinched without splitting. The eyelets shall be 3.4.5.2 Eyelet
47、s, aluminum. The aluminum eyelets specified in 3.3.6 shall be installed using score setting dies conforming to J.C. Rhodes, part number 1-KW-1KL and 101Y-Klom or Stimpson Co. part number A2744-7 or equal (see 6.5). The eyelet shall be securely set in a manner that will prevent detachment from, or cu
48、tting of, the adjacent material. The clinched portion of the eyelet shall be on the inside of the case. 3.4.6 Setting of snap fasteners. A hole shall be prepunched to receive the button and eyelet components of the snap fasteners. The hole shall be smaller than the outside diameter of the button and
49、 eyelet barrels so that the barrel must be forced through the hole. The hole shall not be punched in the setting 7 Licensed by Information Handling ServicesMIL-C-43827D operation with the button or eyelet barrel. clinched without cutting the adjacent materials and no more than three splits shall occur in the button or eyelet barrels. The fasteners shall be securely 3.4.7 Setting of plastic fastener. Holes for assembling the fastener components shall be prepunched or predrilled. the holes shall be smaller than the diameter o the posts of the latch receptacle so that the posts must
