1、Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-(Copies of specifications, standards, and drawings required by con- tractors in connection with specific procurement functions should be obtained from the procuring agency or as directed by the contract
2、ing officer). 3. REQUIREMENTS 3.1 sicable drawings, Drawings applicable to the coated nylon covers shall be as specified in the contract or order, The covers shall be constructed in accordance with the applicable drawings, ex- cept where otherwise specified. _L NOTE: The drawings furnished to the co
3、ntractor may have been prepared for the manufacture of canvas covers and at the time of issue may not have made reference to coated nylon mat- erial, For all intents and purposes of this Specification, all references in these drawings to canvas material shall be disre- garded and all information her
4、ein contained pertaining to coated nylon shall apply 3.1.1 Drawings for record. Drawings prepared by the contractor, when required for record, shall be furnished in accordance with O. P. 400 and OSTD 599. 3.2 Sample covers, When a sample cover is supplied in lieu of draw- ings, this specification sh
5、all take precedence wherever there is a difference between the sample cover and the specification. When a 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-22043 (Wep) sample cover and drawings are supplied, the production cover shall be manufa
6、ctured according to the drawings and this specification. The sample cover is supplied only for information and guidance. 3.3 Material. ing to apecification MIL-C-20696, Type II, Class 3, The covers shall be manufactured of material conform- 3.4-Thread and stitching. substitution of thread shall be m
7、ade without permission of the con- tracting activity. The thread shall be as near the color of the fin- ished cover as possible. Stitching shall be in accordance with Spec- ification DDD-s-751, Type 3Ol or 401. There shall be not less than 44 nor more than 5.2 stitches per inch. Machine needles larg
8、er than No. 22 shall not be used. Only lock stitching will be permitted; a chain stibch is not acceptable. When skipped or broken stitches occur, the stitches must be reinforced by parallel stitching for at least 2.0 inches on each side of the skipped or broken stitches. 3.5 Chafi-atches. All chafin
9、g patches shall be sewed to the in- side of the cover. These patches shall be a double layer of the base cloth, Thread shall be No. 16 dacron thread. No 3.6 Air vents. Air vents shall be provided on covers if cover size or shape is such that air circulation is deemed insufficient to pre- vent conden
10、sation. Air vents shall be-so constriicted as not to af- fect the watertightness of the cover. 3.7 Lashine; and lacine;. Lashings and lacings, as shown on the draw- ing (or sample cover if drawings are not available), shall be fur- nished by the contractor, and shall be braided sash-cord conforming
11、to dpecification T-C-571, Type II, Class 1. ed with compound conforming to Specification MIL-C-15159. All cord shall be treat- 3.8 Metal fittinas-. All grommets, ferrules and D-ring shall be of brass unless otherwise specified on the drawings. Grommets shall al- so meet the requirements of Specifica
12、tion MIL-G-16491 (Ships). Fer- rules shall be securely crimped. Metal fittings shall have no pro- truding sharp edges. D-rings shall be securely attached by means of cotton webbing stitched to cover, The webbing is to conform to Spec- ification MIL-W-530, Type III, Class 4, and match as nearly as po
13、ssi- ble, the color.of cover. 3.9 Hems and seams. The hems and seams shall be as shown on the draw- ing, except as noted below: For round grommets - 2.0 inch hem For. oblong grommets - 3.0 inch hem For D-rings - 3.0 inch hem 3 Provided by IHSNot for ResaleNo reproduction or networking permitted with
14、out license from IHS-,-,-flIL-C-220g3 LO = 7777706 0303737 7 MIL-C -22 043 hP 1 3.10 Handles. Handles, when required, shall be cotton webbing, Type III, of Specification MIL-W-530. 3.11 Waterproofing of stitchinq. All stitching shall be waterproofed by applying with a brush a suitable adhesive on th
15、e inside stitches of cover. yard prior to use.) (Note - Adhesive to be approved by New York Naval Ship- 3.12 Deviation from drawings, sample cover or specifications. The contractor may at his. option combine two or more of the parta on the drawings (or sample cover) or make one part into two or more
16、 parts to suit the width or cutting of the cloth, providing the part does not appear patchy, the original dimensions of the cover are main- tained and that any new seams follow the pattern of the adjaoent seams. Except for this, permission must be received from the con- tracting activity for any oth
17、er deviations from the drawings or speoifications 3.13 Color. of Fe- Specification TT-C-595, exoept for gloss, unless other- wise specified by procuring activity. The color to be the same on both sides of base cloth. 3.14 Coatinq-thickness. If coating thickness is not the same on each side of base c
18、loth, the side with the heavier coating shall be on the inside of the cover. The color shall be ocean gray, conforming to No. 26176 3.15 Markiras. less than one inch high with the markings as shown on the drawings or sample cover. 3.16 Dimensions. No dimensions of the finished cover shall be less th
19、an that on the drawings or sample cover. However, the dimensions of the finished cover may be larger than the dimensions on the draw- inss or sample cover by the following amounts: Dimension on Drawings Plus Tolerance on Finished Each cover shall be suitably marked in letters not or Sample Covers Pr
20、oduc tion Cover O to 3.0 inches More than 3.0 to 12.0 inches More than 12.0 to 24.0 inches More than 24.0 inches 3/8 inch 1/2 inch 3/4 inch 3 percent The dimensions of the finished cover should be as close as pos- sible to the drawings or sample covers. Mating grommets, D-rings, or other approved cl
21、osure devices shall match throug;hout the length of the lacing without noticeable bulging when laced. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-22043CWep) 3.17 Workmanship. All details of manufacture shall be in accordanoe with first-cl
22、ass commercial practice covering this type of work. Covers shall be free from defects or blemishes affecting their ap- pearance or serviceability. 4. QUALITY ASSURANCE PROVISIONS 4.1 Sam ling and inspection. Coated nylon covers shall be inspected by tdaval Inspector to determine compliance with the
23、drawings 01“ samples and the requirements of this specification. One sample pro- duction cover shall be submitted to the activity contracting for the covers, or as directed in the contract, for inspection of material, details, workmanship, etc., so that it can be tried for fit on the equipment for w
24、hich intended. 4.2 Tests. 4.2.1 Pre-manufacture tests . Prior to manufacture of covers, the coated nylon cloth shaIIrhave passed the tests called for in Speci- fication MIL-C-20696. 4.2.2 Acceptance tests. The inspector shall request that covers be sample tested for strength and water tightness of s
25、eams, The number of each lot to be tested shall be determined by the inspector up to lo test if deemed necessary. 4.2.2.1 Watertightness test. Shape a pooket in the cover with the seam at the bottom. Fill- pocket with not less than one quart of water at ambient temperature and keep seam under water
26、for one hour. 4.2.2.1.1 Leakage through the seam shall be cause for rejection. 4.2.2.2 Strength test. The contractor shall submit sample seams, not less than two feet long, of each lot of thread used in the manufac- ture of the covers. The inspector shall ascertain that the sample seam is capable of
27、 withstanding at least a one hundred pound pull. 4.2.2.2.1 Failure of the seam at less than one hundred pound pull shall be cause for rejection+ 5. PREPARATION FOR DELIVERY 5.1 Preservation and packagins. 5.1.1 Level A 5.1.1.1 Cleanin . Cleaning, if required, shall be accomplished by 5 wiping with -
28、+ a c ean dry cloth or brushing with a soft bristle brush, Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-22043 (Wep) j.1.1.2 Drying and preservative ap with a soft bristle brush. Not applicable. 5.1.3.2 Dryinsand preservative application. Not
29、 applicable. 5.1.3.3 Unit. accordance with the manufacturers commercial practice . The packag- ing shall be adequate to afford protection against damage durin8; di- rect shipment from the supply source to the first receiving activi- ty. Each assembled cover shall have an identification tag attached.
30、 The tag3 shall meet the requirements of Specification UU-T-, Type A, Size No. 8. Each assembled cover shall be packaqed in 5.1.3.4 .Intermediate packagine;. Not applicable. 5.2 Packing. 5.2.1 Level A. 5.2.1.1 Exterior containers . The assembled covers, packaged as des- cribed in 5.1.1, shall be pac
31、ked ln a snug-fittine; overseas type wood box, conforming to the requirements of Specification PPP-B-585, PPP-B-601 or PPP-B-621; or in an overseas type mod-cleated fiber- board box, conforming to the requirements of Specification PPP-B-591. The cgoss weight of the shipping container shall not excee
32、d 200 pounds. Shipping containers shall be closed and strapped in accordance with the applicable container specification. 5.2.2 Level B. Not applicable. shipment from the supply source to the first receiving activity for I 6 Provided by IHSNot for ResaleNo reproduction or networking permitted withou
33、t license from IHS-,-,-MIL-C-22043 LO m 9799906 0302720 7 m / MIL- C -22 043 Wep ) immediate use. Shipping containers shall comply with the carriers rules and regulations, applicable to the mode of transportation. 5.3, Markins. 5.3.1 Special markings. marked on each side, or side panel - USE WO HOOK
34、S“ - in letters not less than 14 inches in heisht, as per MIL-STD-129. 5.3.2 Normal markings. contract or order; unit packages and shipping containers shall be marked in accordance with the requirements of MIL-STD-129. Each unit package shall be marked with the name of the ordnance equipment for whi
35、ch the cover is designed, contract number, and the name of the contrao tor. Each shipping container shall be marked, “Coated, Nylon, Covers“ and with the quantity contained therein, the name of the contractor, the number of the contract or order, and the sross weight. Each shipping container shall b
36、e clearly In addition to the markings required by the 6. - NOTES. 6.1 Ordering data. ing: Procurement documents should specify the follow- a. Title, number and date of this specification. b. Applicable drawing numbers 6.2 Preparation for delivery criteria. levei of packaging and packino; shal2rbe as
37、 follows: be shipped to indeterminate destinations, or stored under indeter- minate conditions for redistribution anywhere. known that the item is to be shipped to omestic inatallations for immediate use at the first receiving activity. Criteria for use of the proper Level A This level shall be used
38、 for those items which are to Level C. This level shall be used only when it is definitely Notice: When government drawings, specifioations, or other data are use for any purpose other bhan in connection with a definite- ly related government procurement operation, the United States Government there
39、by incure no responsibility nor any oblisation whatsoever, and the fact that the government . may have formulated, furnished, or in any way supplied the said drawings, specifications, or other data is not to be regarded by implications or otherwise as in any manner liceqsing the holder or any other person or corporation, or conveying any rights or permission to manufacture, use, or sell any patented invention that may in any way be re- lated there to. -7 47609 - o .- Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
