NAVY MIL-C-24491 B-1981 CONTAINER FIBERGLASS REINFORCED PLASTIC FOR INFLATABLE LIFEBOATS MARK 5 MOD 2 AND MARK 6《MARK 5 MOD 2 和MARK 6气胀式救生艇纤维玻璃塑料增强集装箱》.pdf

1、F MIL-C-24471B 19 W 9779906 0193076 4 1. . SCOPE 21 April 1981 SUPERSEDING M IL-C -2 449 1 A ( SHI PS ) . 14, June -1974 (See 6.5) . I : 1- MILITARY SPECIFICATION CONTAINER, FIBERGLASS REINFORCED PLASTIC, FOR INFLATABLE LIFEBOATS, MARK 5, MOD 2, AND MARK 6 Tnis specification is approved for use by t

2、he Naval Sea Systems Command, Department of the Navy, and is available for use by all Departments and Agencies of the Department of Defense . 1.1 Scope. This specification covers stowage container intended for 15-person Mark 5, Moa 2 and 25-person Mark 6, inflatable lifeboats. 2. APPLICABLE DOCUMENT

3、S 2.1 Issues of documents. The following documents, of the issue in effect on aate of invitaton for bids or reque.st for proposal, form a part of the specification to the extent specified herein. - SPECIFICATIONS FEDERAL QQ-B-613 - Brass, Leaaea ana Nonleaaed: Flat Products (Plate, Bar, Sheet and St

4、rip). QQ-B-626 - Brass, Leaded ana Nonleaded: Roa, Shapes, Forg- ings, ana Flat Products with Finishea Edges (Bar ana Strip). PPP-B-636 - Boxes, Shipping, Fiberboard. PPP-B-640 - Boxes, Fiberboard, Corrugated, Triple-Wall. MILITARY MIL-P-1 16 - Preservation.-Packaging, Methods of. MIL-R-6130 - Rubbe

5、r, Cellular, Chemically Blown. MIL-P-17549 - PlasticLaminates, Fibrous Glass Reinforced, Marine Structural. r-.-,- u- - 7 -YI _y -a- -Y - a- -a- L 1 Beneficial comments (recommenaations, aaaitions, deletions) ana any pertinent aata which may be of use in improving this document shoula be adaressed t

6、o: Commander, Naval Sea Systems Command, SEA 3112, Department of the Navy, Washington, DC 20362 by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. -uI-.-,- -I- I_-y-_u-I-2-.-u-3 -yI-_u_- 1 FSC 1940 ;Mi$ DOCUT t

7、he issue in effect on date of fnvitations for bids or request for proposal Shall apply, NATIONAL MOTOR FREIGHT TRAFFIC ASSOCIATION, INC. AGENT National Motor Freight Cl assi fication (Application for copies should be addressed to the National Motor Freight Traffic Association, Inc., ATA TRAFFIC Dept

8、, 1616 liptf Street, N.W., Washington, DC 20036.) UNIFORM CLASSIFICATION COMMITTEE AGENT Uniform Freight Classification Ratings, Rules, and Regula- tions (Application for copies should be addressed to the Uniform Classifica- tion Committee Agent, Tariff Publicatiop Officer, Room 1106, 222 South Rive

9、rside Plaza, Chicago, IL 60604,) ards are generally available for reference from libraries. They are also distributed among technical groups and using Federal agencies.) (Technical society and technical association specifications and stand- 3. REQUIREMENTS O a 3.1 First article sample. Prior to begi

10、nning production, one sample O container shall be examined and tested as specified in 4.3 (see 6.3). 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-2447LB 17 7777706 0173078 8 2 MIL-C-24491B(SH) 3.2 Materials. Materials used in the construct

11、ion of the container O shall be in accordance with tab1.e I. TABLE I. Material. r-I- Item I_- Con ta in er bod y 1 (see 3.3.2) Gasket (see 3.3.3) Banding straps (see 3.3.4) Pain ter (see 3.3.5) Container grommet (see 3.3.6) Joint seal (see 3.3.7) Fibrous glass reinforced plastic Cellular rubber, oil

12、 and flame resistant UNS 26000 brass strip, annealed temper Braided nylon cord Synthetic rubber Synthetic rubber Ap pl ic able document MIL-R-21607, grade 1, fire For layup schedule see Draw MIL-R-6130, type I, grade A resistant ing 803-4382176. condition medium QQ-B-6 13 QQ-B-626 MIL-C-43307 Drawin

13、g 803-4382176 3.2.1 Recovered materials. Unless otherwise specified herein, all equipment, material, and articles incorporated in the products covered by this specification shall be new and shall be fabricated using materials produced from recovered materials to the maximum extent practicable withou

14、t jeopardizing the intended use. The term vvrecovered materialsvv means materials which haue been collected or recovered from solid waste and re- . processed to become a source of raw materials, as opposed to virgin raw materials. None of the above shall be interpreted to mean that the use of used o

15、r rebuilt products is allowed under this specification unless otherwise specifically specified. 3.3 Design and construction. Dimensions, shape, and general arrangement of the container shall conform to Drawing 803-4382176. 3.3.1 Weight. The total weight of the container assembly including all fittin

16、gs shall not exceed 70 pounds. 3.3.2 Container body. Configuration of the container body shall be as shown on Drawing 803-4382176 with mating top and bottom halves. The thickness of the plastic laminate shall be as required to meet the examination and tests specified herein. 3.3.3 Gasket. A 1/4-inch

17、 thick gasket configured to the mating flange of the bottom container half and bonded in place with a waterproof adhesive shall be provided on the bottom half of the container. 3.3.4 Banding straps. Banding straps shall be 3/4-inch wide by approximately O. 020-inch thick and shall have one 3/32-inch

18、 diameter hole in each band such that the breakingstrength of each band will withstand the test of 4.6.2 and will break from tne force exerted by inflation of the lifeboat without causing damage to the container. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license

19、from IHS-,-,-M IL-C-24491 B (SHI 3.3.5 Painter. A 5/32-inch diameter, 100-foot length, nylon painter with a breaking strength of not less than 540 pounds coiled in a cylindri- cal cavdboard tube for free running shall be provided. One end of the painter shall remain in the container for attachment t

20、o the release mechanism and dee ring of the stowed boat. The other end shall be free and extend approximately 1 foot through the painter cork for attachment to ship structure. The ends of the painter shall be seized. The outside free end of the paintep shall be temporarily taped to case to prevent s

21、nag- ging of tne painter during handling. SA and 5B of Drawing 803-4382176 shall be provided, The grommet shall be snugly installed into a U shaped cutout, open at the joint between con- tainer halves in the bottom half of the container. 3.3.6 Grommet. A two-piece container grommet conforming to det

22、ails 3.3.7 Joint seal. After the installation of banding, the joint between the top and bottom halves of the container shall be covered with a 6-inch wide rubber band seal, B.F. Goodrich part number 1RA1056, or equal . 3.3.8 When specified (see 6,2.11, when containers are shipped empty, the banding

23、straps, painter and painter stowage tube, and sealing band are to be packaged and shipped separate from the containers as specified in 5.2.2. 3.4 Finish. The exterior surfaces of the container shall have a pigmented gel coat in accordance with MIL-P-17549, 5 mil to 25 mil thick- ness. Gel coat and l

24、aminating resins shall be pigmented with color conforming to 26307 of FED-STD-595, Interior surfaces snall be smooth with no exposed laminate fibers and free of sharp or jagged edges. 3.5 Marking. Except as otherwise specified in 3.5.1.3 and 3.5.1.4 (see 6.2.11, the markings shall be legible and dur

25、able black Gothic letters and numerals which shall be thoroughly dry prior to packaging, The ink used shall have an acidity of 5.0 to 8.5 and shall contain no ingredient which is deleterious to the material being marked, 3.5.1 Container marking, The container shall contain the markings specified her

26、ein and located as shown on Drawing 803-4382176. 3.5.1.1 Top half. Tne container side shall contain tile following information in 1/4-incl? black letters and numerals: * PERSONS -I MOD * , MAXIMUM CAPACITY * “INFLATABLE LIFEBOAT MK P CONTAINER, INFLATABLE LmiT NSN /I BUILT FOR U.S. NAVY - II # CONTR

27、ACTOR S NAME, CITY - MONTH, YEAR CONTRACT NO. _ II -.-UIIU-ii-.ii-i- # To be completed by container manufacturer. * To be completed by boat manufacturer or packing activity. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-C-2qLI71B 13 737770b

28、0173080 h W O k O M IL-C-2 449 1 B (SHI 3.5.1.2 Upper and lower half. The upper half of the container shall be labeled iiToplI and the lower half llBottom.ll The letter size shall be 1 -inch. 3.5.1.3 - End. At the end, where the container grommet is located, in 1/4-inch high red letters above the gr

29、ommet, the top half of the container shall be marked: “HANDS OFF EXCEPT IN EMERGENCY TO INFLATE: TO DEPLOY EXCESS LINE, TUG PAINTER HARD TO ACTIVATE. DO NOT INFLATE ON HARD SURFACE.“ . LAUNCH CONTAINER, PULL PAINTER 3.5.1.4 Directly below the identification markings (see 3.5.1.1) and approximately 3

30、-1/2 inches above the joint between container halves, in 1/2-inch red gothic letters, the container shall be marked in red as follows: 3.6 “DO NOT ROLL THIS CONTAINER.Il Workmanship. Workmanship shall be such as to assure that product -s free of defects that would damage the inflatable lifebo ing st

31、owage and inflation. the t dur- 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 otherwise specified in the contract, the con

32、tractor may use his own or any other facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the Government. The Government reserves the right to perform any of the inspections set forth in the specification where such inspections are deemed nec

33、essary to assure supplies and services conform to prescribed requirements. 4.1.1 Inspection system. The contractor shall provide and maintain an inspection system acceptabl-e to the Government for supplies and services covered by this specification. The inspection system shall be in accord- ance wit

34、h MIL-1-45208. 4.2 Classification of inspection. The inspection requirements specified herein are classified as follows: (a) First article inspection (see 4.3). (b) Quality conformance inspection (see 4.4). . 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from

35、 IHS-,-,-M IL-C-2449 1 B (SH) O 4.3 First article inspection. First article inspection shall conssf; of the examination specified in 4.5 and the tests specified in 4,6.1 and 4.6.2, One sample container along with test panel specified in MIL-P-17549 shall be forwarded to the Officer-in-Charge, David

36、W. Taylor Naval Ship Research and Development Center, Annapolis Laboratory, Annapolis, MD 21402, The sample container shall be representative of the construction, workmanship, components and materials to be used during pro- duction * 4.3.1 First article test reports. The contractor shall prepare a f

37、irst article test report in accordance with the data ordering document included in the contract or order (see 6.2.2). 4.4 Quality conformance inspection. Quality conformance nspecton shall Consist of the following: (a) Visual and dimensional examination (see 4.5). (b) Marking (see 3.5 and 5.3). 4.5

38、Examination, Each container shall be thoroughly checked and visually and dimensionally examined to determine conformance to the requirements of this specification not involving tests. Table II shall be used to classify the critical defects. No container will be accepted until all discernible defects

39、 are corrected, Categories Critical 1 2 3 4 5 6 7 9 10 11 12 13 14 a Ma jr Minor - TABLE II. Classification of defects. 1-1-1- u_ cuc.-.-).L- u De feo t s -.- -.-.Ii-L-IIL- Weight of case in excess of 70 pounds. Dimensions not in accordance with Drawing 803-4382176. Two halves of container do not se

40、al tightly. Inner surface not smooth; has rough or sharp projections, Gasket missing or improperly installed. Closed container not watertight. Gel coat pitted, crazed, or cracked. Handling recesses too small, improperly located or omitted. Nylon painter missing or improperly coiled . Incorrect marki

41、ng or instructions, Drain holes omitted . Color not as required. Evidence of unauthorized material or repairs. Fiberglass layup not in accordance with Drawing 803-4382176. None defined None defined. e 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,

42、-P MIL-C-2Ll49LB 19 m 777790b 0393082 T = MIL-C-24491BtSH) 4.6 Tests. 4.6.1 Watertightness. The assembled container placed in any - Position shall be subjected to a water stream directed around the entire sealing area from a hose equipped with a 1/2-inch di9meter (minimum) nozzle under not less than

43、 25 pounds per square inch (lb/in 1 line pressure at a distance of not mope than 10 feet from the case for a period of 10 minutes. There shall be no evidence of water entering the container, 4.6.2 Drop test. The assembled container with a Mark 6 lifeboat and all equipment and survival gear within sh

44、all be dropped into water from a height of not less than 65 feet. The container and lifeboat shall remain afloat for not less than 30 minutes after the drop and the lifeboat shall inflate as designed. The lifeboat used in this test shall be packed with its center-of-gravity located so that the conta

45、iner rotates to the upright position (plus or minus 10 degrees). Damage caused by container striking the water with the mating joint vertical shall not be cause for rejection, but the test must be repeated with the lifeboat properly packed. 4.7 Inspection of preparation for delivery. Packaging, pack

46、ing, and marking shall be inspected for compliance with section 5 of this speci- fication. O 5. PACKAGING (The preparation for delivery requirements specified herein apply only for direct Government acquisitions. For the extent of applicability of the preparation for delivery requirements of referen

47、ced documents listed in section 2, see 6.4.) 5.1 General re-quirements. Unless otherwise specified (see 6.2.11, a containers shall be knocked-down and nested for shipment and storage. 5.2 Packaging and packing. Packaging and packing shall be level A or C, as specified (see 6.2.1). 5.2.1 Leve1,A. Eac

48、h container and its accessories (see 3.3.4 through 3.3.7) shall be packaged as specified in method III of MIL-P-116 and packed as follows: (a The container halves shall be nested one inside the other (b) Prior to nesting the container halves, the accessories shall by placing the bottom inside the to

49、p. be placed inside the container top and secured: alterna- .tively, the accessories may be wrapped in a noncorrosive barrier material, secured with tape and placed in the top half of the container. Pressure sensitive filament rein- -forced tape shall be used to secure the container halves together. (c) A strip of cushioning material shall be placed betw