1、MIL-G-2455 13 U 777770b 0433883 7 W I) i MIL-G-824.55 (OS) 10 May 1766 MILITAEIY SPECIFICATION GENERATOR, GAS Bureau of Weapons Drawing 2301891 (For Parachute Release Mk 32 Mod O) This specification has been approved by the Naval Ordnance Systems Cmmand, Department of the Nairy. 1. SCOPE 1.1 This sp
2、ecification covers one type of Gas Generator referred See 6*1 for description of intended we, e to herein as the “Generator“. 2. APFLICABW DOCUMENTS 2 1 Government documents. - Unless otherwise stated the followlng documents of the issue in effect on date of invitation for bids, form tl part of this
3、 specification to the extent specified herein. SPECIFICATIONS Military . . MIL-E-5272 Environmental testing,. Aeronqutical and As s ocia ted Equipment, General 8 pc cif i - cation for FSC -1350 , I I Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- M
4、IL-G-2455 13 7777706 043388q 7 W . .= I t = I I STANUAmS Mil1 Lary MIL-CTD-105 Sampling Procedures and Table for Inspection by Attributes MIL-STD-129 . Marking for Shipmen-t; and Storage MIL-STD-130 Identification Marking of U,S. Military Property MIL-STD-143 Specifications an Standards, Order of Pr
5、ecedence for the Selection of MS 16625 Ring, Retaining, Internal., Basic (Tapered Section Type ) MS 335% Metals, Definitions of Dissimilar DRAWINGS Bureau of Naval Weapons 2068881 Gasket 215 9752 2301891 Spacer Generator, Gas Specification Control Drawing 2452767 Re taine r 21551270 Closure (Copies
6、01 documents required by suppliers in connection with specific procurement functions should be -obtained from the procuring activity or ao directed by the contracting officer. ) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-=, MIL-G-82455 13 i 7977
7、706 0433885 O r- C MIL-G-82455 (OS) 2.2 Other publications. - The following documents form a part of this specification to the extent specified herein. Unless otherwise indicated, the issue in effect on date of invitation for bids sha upply. PUB, ICATIONS Inters tate C orner ce Commission 49 CFR, Pa
8、rt 71 to 78 Interstate Commerce Commission Rules and Regulations for the Transportation of Explosives and Other Dangerous Articles (dlpplkatiop for coptes should be addressed to the Superintendent p fiocments, Government Printing Office, Washington 25, D. C. ) . r. 2.3 Conflicting reqvirements . - r
9、 Unless otherwise specified when conflicting statements exist, within the documentation for the Generator, the following shall be the order of precedence : A, Contract. or Purchase Order B. Drawings originated specifically for the Generator C. This Specification D. Federal Documents . E. Military do
10、cuments 3. REQUlIEMENTS 3.1 Preproduction sample.- Unless otherwise specified in the contract; or order, prior to the start of production of Generators, a preproduction sample shall: (a) (b) Consist of 50 Generators (c) Be manufactured using the procedures praposed for production Be tested ao specif
11、ied in section b herein and in Tor the purpose of determining that, prior to .starting prduction,-the suppliers production methds are cepb.c. of yielding ibcmo that comp1.y wi%h the technical requirements of the contract. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without
12、 license from IHS-,-,-_- - MIL-G-82455 L3 a 7777706 0433886 2 3.2 Basic requirements . - 3.2.1 Data.- No data is required by this specification (other khan reports accompanying samples submitted fol: preproduction and periodic pror1ucLlon tcsbinlr;), or by applicablc documents referenced in Section
13、2 unless specified in the contract or order (see paragraph 6.2). 3.2.2 Selection of mteria1s.- 3.2.2.1 Fungus proof material. - Materials that are nutrients Tor fungi shall nal; be wed unless necessary. hermetically sealed, they shall be treated with a fuyigicidal agent zcceptable to the procuring a
14、ctivity. Where used und nol; 3.2.2.2 Dissjmilar metals. - Unless suitably protected against -.J.ectrolytic corrosion, dissimilar metals shall not be used in contact urtth each other. Dissimilar metals are defined in Standard MS 33586. 3.2.3 Design changes.- Unless otherwise specified by the procur-
15、i lng activity, any change in design (which affects performance or relia- bility o the Generator as detiermined by the Procuring Activity) made after completion of preproduction tests, shall require that a new preproduction sample (see 4.3.1) manufactured in accordance with the design change, be sub
16、mitted for testing, 3.2. IC Gageho. - The supplier shall provide whatever gages arc necessary and adequate Lo assure that the material and parts of the :enerator will meet dimensions and requirements shoim on the applicable locuments listed on BuWeps Drawing 2301891. ,he procuring activity will furn
17、ish existing pertinent drawings of Naval ?inal inspection ytgca. Lor designing und mnufacturing the gages needed for the satisfactory Nlillment of the contract requirements. . When requested by the supplier, gages for use only in the designing of the suppliers This action does nut relieve the suppli
18、er of the responsibility 3.2.5 Inspection and test equipment and facilities.- The supplier shall furnish and mintain all .necessary inspection and test equipment snd fctcilities, and provide personnel for performing ali. acceptance tests fjpeoified herein. The test equipment shall be adeqtiate to pe
19、rmit per- formnce of the required acceptance tests. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. - -.-. _. t. 5 i b c - MIL-G-82455 13 a 7777706 0433887 4 M 3.2.6 Safety.- shall provide adequate during the handling of ? MIL-G-8245 6 (OS) The s
20、upplier or manufacturer, as ky apply, safety precautions for protection of personriel the Generator. See General Safety Precaubioris, 6.4. 3.3 Performance and physical characteristics - 3.3.1 Initiation. - The Generator shall be mechanically initiated by the. extraction OF the firing sear. 3.3.1.1 E
21、xtraction.- 3.3.1.1.1 Force and distance.- The Force, applied at any angle within the force extraction angle (see BuWeps dwg 2301891) required to extract the firing sear shall be within the range of 5 to 20 pounds (lbs) acting for a distance of 0.50 k .25 inches. 3.3.1.1.2 Velocity.- The Generator s
22、hall allow extraction of the firing sear at any velocity up to and including 200 feet per second (fps). 3.3.2 Pressure from firing.- The gas pressure from the Generator when fired into a free volume (excluding voids within the Generator) of 0.50 J- .O1 cubic centimeters (cc) shall have a time-pressu
23、re curve within the shaded area of figure 1. 3.3.3 External pressure. - The capped end of .the Generator (end opposite the firing sear) shall withstand 3700 pounds per square inch gage (psig) gas pressure.minimum for 10 seconds minimum without leakage. 3.3.4 Safety pin.- The Generator shall incorpor
24、ate a removable safety pin that prevents movement of the firing mechanism when safety pin is in place. 3.3.5 Configuration;- The envelope dimensions, part identification, mounting, and other external dimensions shall be in accordance with 3.5.5.1 and the applicable specification control drawings (Bu
25、Weps Drawing 2301891 ). 3.3.5.1 Firing Sear.- The firing sear shall be capble of passing through a .i45 dia hole during extraction and separation, at any angle within the sear extraction cone (see BuWeps Dwg 2301891 and figure 3) while conforming to 3.3.1. 5 Provided by IHSNot for ResaleNo reproduct
26、ion or networking permitted without license from IHS-,-,-MIL-G-82455 13 M 77777Ob 0433888 b x _ _ -. . -. . ._ _-. - -_ - .- -. 3.4 Environmental requirements. - Unless otherwise specified, bhe Generator shaU be capable of conforming to the performance requirements and physical characteristics of th
27、is specification after being exposed to the environments and all conditions specified in this section . 3.4.1 Vibration (see 6.3). - 3.4.1.1 Ready conditipn.- The Generator chal1 be capable of withstanding the vibration shown in Table I in the Ready condition (see 6.3). Table I Frequency Double Ampl
28、itude Acceleration . (CPS 1 (in,) minimum . (g) minimum 0.10 -c 16-24 - 3.0 24-40 o. 036 - 40-74 -I JO. o 74-500 3.4.1.2 Packaged. - The Generator packaged in accordance with 5.1 chal1 be capable of withstandin$ the vibration of Table II. Table II Double Frequency (g ) minimum Amplitude Acceleration
29、 Range lin. ) minimum (CPS 1 5 -6 1.3 6-60 o= 75 - - 3.4.2 Chock (see 6.3).- The Generator shall be capable of withstanding shock specified in Table III. 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-O Condition . (see 6.3) ,. Nonopecat ing Ready
30、 Table III Shock Schedule Peak Magnitude Minimum DuratLon Acceleratioti Dirie c l;i o1 L - (6 1 Ins 60 8.0 Any 45 20.0 Forward 3.4.3 Acceleration.- The Generator shall be capable of with- standing an acceleration of 35 gs in the aft direction and 25 gs in the forward direction with the Generator in
31、the ready condition (See 6.3). 3.4.4 TemperatGe. - 3.4.4.1 Operating. - The Generator shall meet the requirements O of 3.3 at any temperature from O to 140 degrees Fahrenheit ( F). 3.4.4.2 Not operating.- The Generator shall meet the perfornaance. . requirements and product characteristics after sto
32、rage at any temperature from -45OF to +i40 F upon stabilization at any temperature speciflea in 3.4.4.1. O 3.4.5 Humidity.- The Generagor shall withstand exposure to 95 percent relative humidity at 110 F of finish or functional capabilities. for eight hours without degradation 3.4.6 Altitude. - The
33、Generator shall meet the performance reqare- ments of 3.3 sbsequent to exposure to atmospheric pressure at any altitude from O to 20,000 feet. 3.4.7 Attitude.- The Generator shall meet the performance requirements of 3.3 in any attitude. 3.5 Life.- 3.5.1 Storage life, ready nonoperating.- The Genera
34、tor, mounted in service installation, shall have a storage life of one ,year. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3.6 Identification.- The Generator shall be permanently identified in accordance herwise specified, the supplier may utilize
35、 his bwn facilities or any commercial laboratory acceptable to the Government. reserves the right to perform any of the inspections set forth in this specification where such inspections are deemed necessary to assure supplies and services conform Lo prescribed requirements. 4,2 Test conditions.- Un
36、less otherwise specified, the Generator shall be subjected to tests under the following conditions: (a) TempratuPe (b) Humidity (relative) Room ambient, up to 95 percent (c) Altitude Nor.mal ground atmospheric pressure 60 to 95 OF (room ambient) 8 Provided by IHSNot for ResaleNo reproduction or netw
37、orking permitted without license from IHS-,-,-. 1 1 k .*,- ”, MIL-G-2455 13 m 9999906 0433891 6 m - _- MIL-G-82455 (OS) 4.3 Classification. of inspection. - Inspection of the Generator shall be as follows: -. (a) Preproduction inspection (4.4) I (i) Preproduction sample (see 4.4.1) (2) Preproduction
38、 tests (see 4.4.2) Periodic production sampling (see 4.5.) (i) (2) (b) Periodic production sampling (see 4.5.1) Periodic production tests (see 4.5.2) (c) Acceptance inspection (4.6) (1) Acceptance sampling (see 4.6.1) (2 ) 4.4 Preproduction inspection 4.4.1 Preproduction sample.- Frior to the start
39、of production, a preproduction sample of 50 Generators manufactured in accordance wi1;h 3.1, shall be subjected to the pre-production tests detailed in 4,4.2 a% a fuci:l.i.l,y designated by the procuring activity. Acceptance of the preproductiorl -. sample shall be based on no defects in the sample.
40、 Further production of the Generator by the supplier, prior to approval of the preproduction sample, shall be a %he suppliers risk. Acceptance tests and examination (see 4.6.2 ) 4.4.2 Preproduction tests. - The Generators within the preproducldori sample (identified as Generators numbers 1 through 5
41、0) shall be subjected. to the tests as specified in Table IV. Certified inspection data covering. the results of preproduction tests shall be forwarded to the Bureau of Naval Weapons. Certified inspection data shall consist of the following: (a) Date of tests and namec of persons conducting teste Ru
42、n or test plan used (c) Serial numbers or identification of the Gexlerator (d) Test results of preproduction.tests _ 9 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MZL-Ci-82455 (OS) LO - x w x x x x sc x x x x x x x w w x x K x x x x x x n (u 4 -?
43、 : 3 3 4 a, v - x x x x x x x # ) * * P 3 C c - h $0 *-? 2.2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-i i L MIL-G-2455 13 m 9999906 O433893 T m -. 4,4.2.1 Environmental tests .- The Generators shall be subjected to the environmental tests (see
44、 Table IV). Unless otherwise Specified, inability of the Generator to pass the leakage and function tests of 4.4.2.2 and 4.4.2.3 subsequent to the environmental tests, constitutes a failure, 4.4.2.1.2 Vibration. - 4.4.2.1.2.1- Installed.- Mount the Generator, with the safety pin removed, as shh in f
45、igure 2. The Generator shall be conditioned at room temperature for a minimum period of 1 hour prior.to conducting the resonance surveys. Vibrate the unit at room temperature for a tol;aL of 9 hours, in accordance with Procedure XII,. Specification MIL-E:-52/2C, and Table I of 3.4.1.1. 4.4.2.1.2.2 P
46、ackage.- Mount the packaged Generator on the The packaged Generator shall be vibrated Cycle the applied vibration from 5 to vibration test equipment. at room ambient temperature. 60 cps in accordance with Table II of 3.4.1.2 at the rate. of 1 cycle (from 5 to 60 cps and return) every 5 minutes for i
47、5 minutes in each of three mutmlly perpendicular axis. 4.4.2.1.3 Shock,- The Generator shall be subjected to chock at room temperature (4.4.2.1.3.1 and 4.4.2.1.3.2) in accordance with the shock test procedure IV of Specification MIL-E-5272C except shock mgnitude and duration shall be measured using
48、an accelerometer mounted on the input table of the fixture to indicate applied shock, and the test equipment is not restricted to. that specified in- Specification MIL-E-5272C. 4.4.2.3.3.1 Safety pin.jnstalled.- Mount the Generator as Secure sham in figure 2 except the safety pin shall be installed.
49、- to the shock test fixture so that a minimum of 90 percent of the table input of the fixture will be applied to the Generator. the Generator to a total of 9 shocks of 6 g each for 8 +2 -0 milliseconds. Two shocks, one in each direction, shallbe.applied along the mutually perpendicular principle axis and three shocks shall be ap
