1、MILITBRY SPECIFICATION . -. 1. SCOPE 1.1 This specification covers one type of pneumatic life raft designated E-2B. 2.1 The following documents, of the iasue in effect on dato of invitation for bids, shall form a part of this specification: SPECiEICATIOIS Federal Plywood, Container Orab Tags, Shippi
2、ng and Stack Stitches i Seams 5 and Stitching Military MIL-C -5040 ML4-55 39 m-c-6819 MIL-c -75 Rope (Carbon) Flexible , Prof ormed Anchors; Sea, Ufo Raft Webbing, Textile, Woven, Nylon Compound; Lubricating, Inner Tube, Aircraft Cord, Nylon Cement i Natural Rubber Cloth, Cotton, Coated Cord, Nylon,
3、 Coreleas Screw Threads e Standard, Awonautical Thread, Nylon Parta And Equipment, Aeronautical Preparation For Dolivery Pumps, Hand, Air Drawings, Engineering and Associated Usts Tira Fsc 4220 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-R-57
4、73E 42 7777706 0233340 O Federal Test Method No. 601 Ribber; Sampling and Testing Military MIL-SllD-129 MIL-STD-130 Marking for Shipment and Storage Identification Marking of U. S. Military mperty Air Poroe-Navy Aeronaut ioal AN227 Fasteners-Snap and Curtain wo230 Gmmts, Metallic, Plain and Spur, Wi
5、th Washers Type I and Type III DUN= . Knife Assembly - Life Raft Floaang Case - Carrying, Life Raft Cylind er arid Valve Ass ably, Carbon dioxide Card - Life RaPt brse Code Multiplace Life Raft Air Force-Navy Aeronautical Bulletin No* U3 Specifications and Standards; Use of (Copies of documents requ
6、ired by contractors in connectio!.L with specific procurement functions should be obtained fmm the procuring activity or as directed by the contracting officer.) 3. REQUIREMENTS 3.1 Qualification.- The raft furnished under this specification :. . . . .-=. -. - . 2 . ” . . _._ -Y / . I :- I_, ._ - Pr
7、ovided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. . _-. . i flIL-R-5773E 92 m 9777706 02313LiL 2 m . 3.3 ComFonenta,- The ref$ assons.l shl sons; AC - 02 the following coiaponents: Item No Quantity Tis sc rip% ion Identification 1 1- Raft Psragraph 3.6
8、 2 1 Cylinder and valve assembly 55C3689-2 3 1 Carrying case 50H350 4 1 See anchm MIL-A-3339 - 49318786 - 1 Knife assembly 3.4 kterias 3.4,1 Ru.bberized Fabric.- Flotation tube and bottom fabric shall eonform to type O of MIL-C-6819. type N of MIL:- . . -_ -. - . ,+.- . L . * . s 71 7c,4 TI() “pL -
9、ANP /“E;p TGH + o/vL y- BEFOFEduTER /N PL AC. . Tc/f /s CFH,jyTED . . . . . .- EflL ARGED Y/ W OF HANDLLC .-. I .I- - . -. . .i- . . . . _a i . . _.-_ . - . - . . . . i . i .:.: _ - .- . . t .:.5:“: . . . _. . .-. . ._. -.- . -.a.-. - . - . . . ,_ . ,_. *. -. .- i -_ - t /- . . I . . / I - Provided
10、by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-7 . . t: . r. . , . I . I -. t.:.: -_-.* .- /- y, 6% 1 -P. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-t 3 104 MIL-R-5773E Li2 m 77777Ob 02313Llb 1 m. M IL-R
11、 -5 77JEfUdAF .- - t-I I Atl AJ -2 1 I. . . . . . 1 . . . . . . . _ ._. - . ,- . l-.-. . . . . -. .- . . . . . - . . . ,. . . . jjlflI:II:II:;:z: . . . . i I . . . . -._. -.-. i . . . -., -. . . t . . . - . i . -:.I:1:.-:. . - . . . . . . -. , I .-.- _-_ . I. . i ., Provided by IHSNot for ResaleNo r
12、eproduction or networking permitted without license from IHS-,-,-MIL-R-5773E 42 M 7797706 0231347 3 MIL-R-5 7733 (USAF 1 _ _- - - . 3.6.1.4 Tolerances.- Unless otherwise specified, the following tolerances shall be applicable to figures 1, 2, 3, and 4. . _ _.-. . Dimensions Tolerances (Plus or Minus
13、) 1/2 inch and under 1/32 Over 1/2 inch ta 1 inch 1/16 1/8 u4 318 3/4 142 Over 1 to 5 inches Over 5 to 10 inches Over 10 to 30 inches ber 30 to 60 inches Over 60 to 120 inches . . -. -. . . -. I . ._. . I - _- “-. _.- -.- . . 3.6.2 Mattress Valve.- The matress valve shall be desimed for attachment t
14、o a 13/16-20 UNEF-2A outlet, for inflation of the raft tube and seat by a hand pump, MIL*-7742. molded patches for attachment of the valves to the supporting tube shall be cemented to the inside of the tube. flotation tube fabric shall be concentrically cemented around the valve on the outside of th
15、e tube. sealing patch shall be applied over the valve inside the tube so as to cover approximately l/2-inch on each side of the edge of the molded matress valve patch. Tape approximtely 3/8 inch wide shall be cemented around the edge of the opening in the tube for the valves so as to cover an equal
16、amount on each side of the tube fabric. Each mattress valve shall be provided with a figure-of-eight shaped flap of flotation tube fabric. concentrically secured beneath the washer of the valve. shall be folded over the valve and closed by means of a snap fastener conforming to AN227-49, -50, -51, a
17、nd -52. sufficient size to protect the raft from abrasion by the mattress valve. Threads shall conform to the requirements of The valves shall be located as shown in figure 1. The A 5-inch aiameter patch of : One half of the flap shall be The other half The flap shall be of 3.6.2.1 Bulkhead Patches.
18、- Two patches of flotation tube fabric not less than5 inches in diameter shall be cemented, one to each side of the bulkhead, where the mattress valves would normally be in contact with the bulkhead when the raft is deflated. 3.6.3 Cylinder Valve Cover.- A bonnet shaped cover shall be provided for t
19、he carbon dioxide cylinder valve to protect the raft fabric from abrasion when the raft is foldea. flotation tube fabric and shall be cemented to the flotation tube. A snap fastener shall be usod to.close.the cover around the valve assembly. The cover shall be constructed of 3.6.4 Minifold.- The man
20、ifold shall be of the flush mounted tee- pattern type and shall contain two outlets, one into each compartment of the raft. Each outlet shall be suitably protected with a bumper of soft rubber to prevent abrasion or damage to the flotation tube. The manifold 9 Provided by IHSNot for ResaleNo reprodu
21、ction or networking permitted without license from IHS-,-,-MIL-R-5773E 42 W 7779706 0233348 5 shall not freeze or accumulato snow during discharge of the gas from the cylinder. The attachment of the manifold shall be properly reinforced with a patch of flotation tube fabric. The manifold .- .- . . ,
22、 r.:. _-.-*. I , ” . .I I-.-. _+_I._.I -.-.-_- . - . - . _.- I.-._ -.- . . - . _.- . *-.-.- b._._ . .-.I-. .- . .- . L._ CI- ._ . ,.- ._. . _. . . ,: . t:.=:x:z: . .-_ I._. -. 1: : . . , . . . . . . 1 . k-: -_ ._-.- . - _. i -.-I _._._ -I_ _- . . - ._._ . -. r.:.:.?:.?:. -.- . . I, . I . , ._. -. .
23、. . . . - . . . . . ., .-. - . - - _ - . .-. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-c flIL-R-5773E 42 7777906 0233347 7 M Il . L Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-R-5773E 4
24、2 W 777770b 0233350 3 W MIL-R-3 773E( USAF ) 12 - Y , . h . -.-.- . - . -_._ ._ -. . . - . - -, . , . .- I . . -. -.- _-_ - ,_ _. -.- . -. . . _._._- - ,.- - . . . . . - _- i . :.1:x:.-z: I . ,. . . . . . . +. . . . . . . . . . . . . . . . . . . . . . -. . . ”._._ - .-.-. - . . - -.- . . -_ -. X. -.
25、- . - . , . l_l_ .- _._ -_I._-_- , -. . . ._ . . . . . I. , . L . . .- , , . * . . ,. )-.-.I._-.-_.I :-:=:.- -. . -. I;.;:.;: .-.-_ .-. . - - . .-.-. . , !/L . , E:ll.:. .! . .E? . -. ,. .” -_ ,. I. ? .-. I.- , . -.- . . . . . , .,. ” “ . - -. . :. . . ._ ! . . L . - . . 1; . . . _. . ,_ . . - -i .
26、. - i; -. _ Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. :-: . . - . . I_. . .- . MIL-R-5773E Li2 999990b 0231353 9 . The code shall be as indicated on 46B3093 except that 3.15.5 %.- A tag conforming to type B of U-T-81, smaller than size No. 4
27、an6 strung with twine, shdl be tied through tbe handies of *;:II; _.-. . . ; . I . .-_. L - - - ,-.- _-.-, . -,- . . . , . %- - ., . I . 1 :. , . , . c _-I I : . .- iyz-_T- -_-_._ _._. -.- ,. .-. _._ . . . . . . : . ._. . ,_-.-a- )f ._ _ ., . - - . . r . . . - _. . -.- -. . . -_ . _ _-. . ._ .- i .
28、-.- ) . . . - , . - . - .- . . . . . . . . . i 1;eiiii:;y:; . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. MIL-R-5773E 42 9999906 0233354 O 3.16 Workmanshie.- Tho rafts shall be constructed in a thoroughly workmanlike manner. defects that might
29、affect appearance or functionability. lha finished rafts shall be clean and free from any 3*lb.l Cementinq. -% In the construction of seams, sealirig areas, and attachments, rach surface to be joined shall be cleaned with a suit- able solvent, buffed lightly, and recleaned with solvert. A minimum of
30、 four coats of cement shall bd spplied to each surface. Tm first two coats shall be thinned with a suitable solvent and warked well into the area to bo joined. The last two coats shall be normal consistency and shall be applied smoothly. The cement shall be applied over the total contact area and sh
31、all extend beyond all seam tapes and attachments not less than 1/8 inch nor moro than 1/2 inch. 3.16.2 The cement shall be fresh and shall be aiixsd not mare than 8 hours prior to application. containers having congealed cement . Fresh cement shall not be put into 3.16.3 After cemented areas are joi
32、ned, roll and stitch out trapped air and wrinkles. Dust the exterior and interior of the raft with talc conformirig to MIL-(2-5024 to prevent adherenca of noncemente surfa ces 4. QUALITY ASSURANCE PROVISIONS 4.1 Unless otherwise specified herein. th supplier is responsible for the performanca of all
33、 inspection requirements prior to submission for Government inspection and acceptance. Except as otherwise specified, the supplier may utilize his own facilities or any comercial laboratory acceptable to the bvernment. Inspection records of examinations and trsts shall be kept complete and available
34、 to the procuring activity. The supplier shall provide for an adequato quality control of the coated fabric, the adhesive, and the attachments during the process of manu- facturo . 4.2 Classification of Tests.- The inspection and testing of rafts shall be classifie as follows: 4.3 a. Acceptance test
35、s See 4.3 b. Qualification testing. . . See 4.4. Acceotanco Tests.- Aacptance tests shall consist of: a. Individual tests b. Sampling plans and tests 16 - I: _. . . . . . .-. . .- . , . . ,_. . I_. ._.i . . . . .: . .- c. ._- - +.-._.-.-.-I- _._ ._._ :.=:.-z.-:-.-.: . _.I_. “I. _- . - . -_ . . . . .
36、 . . )_. . ,._._. . i- .- . - 1 . -. I_._ ._ - . . - ._LI.-._._._ . ._ , *.- . . -. . . - . ._-. . . 1 .- - ,- _. . - -1-11. ,-_ - - . I._* . . _I_-. -_.- . *-_., . - . .- . . ; , - . . . . .-. . , . . i ._._.-. . -. -_. . . . -. . . .-. ._. .- -. . . . i: . : z.- . . . . - i Provided by IHSNot for
37、ResaleNo reproduction or networking permitted without license from IHS-,-,-. *- MIL-R-5773E 42 9797906 0231355 2 a.-_. ,- -, c - . . . . . . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-c MIL-R-5773E 42 7777706 023135b 4 W MIL-R-5773E(USAF) 4.4 Qu
38、alification Testing 4.4.1 Qualification Test Samples.- Tho qualification test sample shall consist of ono raft, material samples, end roports as specified in the letter of authorization. 4.4.2 Qualification Required.- Prior to actual procuroment, tho product which this specification covers shall pas
39、s the qualification tests specifiod herein. If tho product is later modifiad in ary way, re-evalua- tion of the product to determine qualification shnll be required. 4.4.3 Qualification Tests.- Qualification tests shll consist of ail tests described under Test Mothods. 43 Test Conditions 4.5.1 Atmos
40、pheric Conditions.- Unloss otherwise spocified, all tests required by this specification shall be conductod at en atmospheric pressure of 28 to 32 inchea of morcury and a tomperatura of 77 degrees, plus or minus 18 dogroea, Fahrenheit and a relative humidity of 80 percent or 108s. If tho ambient tom
41、peraturr or barometric pressure at the end of the leakage tests aro different from the values recorded at the start of the tosts, corrections shall be made for the change in va lue s . 4.5.1.1 Temperature Corrections.- For each 1 degroe rise in tomperature, 0.031 psi 8hall be subtractod from the fin
42、al pressure reading. to the final pressure reading. For each 1 degree drop in temperature, O.O3l psi shall be added I - i .:!Y:.: _ . ,I . , L 4.5.1.2 Barometric Prossure Corrections.- For each 0.10 inch of morcury rise in barometric prossure, 0,049 psi shall be aded to the temperature-corrected pro
43、ssure reading. drop in barometric pressure, 0.049 psi shell be sGTracted from the tempefiture-corre cte d pressuro reading. For each 0.10 inch of mercury . 45.2 Test Prossure.- Pressures shall be measured by means of a mercury manomoter and converted to psi by multiplying inches of mercury by 0.49.
44、4.6 Test Methods 4.6.1 Examination of Product.- Each raft shall be examined visually to determine conformance to this specification and applicable drawing with respect to materials, woriananship, design, and marking. 18 - - .- . .- . . i . . . . . i . . :1:II:1: . - , . - -_ . -. _. :.:.-:.:.-: . .
45、. , . r . . , . - . i . . . . . i . ._. ,._-_- - - . . . . -. . ._ - _-.-. I._ . . . , . -.- _ . . I_- *, . C._ . I.-.- - I.-.- # . , . , . ._ . - .-. _- -._ . , . v- I. _-._-_ _._-. . _. . _-.= . - . - . _-._ . . -.-._ . . . .-.- . _._-.- . .-.- . . ,. .- . .-. 1. . . . L . i :1“.:;:“:! , . . . - -
46、 . _.I-. . .- . -.-. . _.-. . *. . . . . . - .- . - . . . . . _- .- Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-L I . _- . _- . _- _._ MIL-R-5773E 42 7977706 0233357 b W MIL-R -5 773 E ( US.6 F ) 4.6.2 Operation.- Tho raft shall be deflatod and placed on a clean smooth surfac
