1、- MIL-V-83552A 16 9977906 0204763 T /s -cg-o;S MIL-V-81552A 11 December 1970 . SUPER SE DING 15 December 1967 15 February 1966 MIL-V-8 1552(AS) MILV- 2 5 126B MILITARY SPECIFIC AT ION VALVE, EXHALATION, OXYGEN MASK, PRESSURE COMPENSATING, WITH SAFETY RELIEF This specification is mandatory for use by
2、 all Depart- ments and Agencies of the Department of Defense. 1. SCOPE 1.1 This specification covers one type of pressure compensating oxygen mask exhalation valve with safety relief. P. 2. APPLICABLE DOCUMENTS 2.1 The following documents, of the issue in effect on date of invita- tion for bids or r
3、equest for proposal, form a part of this specification to the extent specified here in. SPECIFICATIONS Feder al BB-A- 1034 Air, Compressed, For Breathing Purposes QQ-A-200/3B Aluminum Alloy Bar, Rod, Shapes, and Tube, Extruded, 2024 QQ-B-626 WW-T-7 99 Brass, Leaded and Non-Leaded, Rod, Shaped, Forgi
4、ngs and Flat Products with Finished Edges (Bar and Strips) Tube, Copper, Seamless (For Use with Solder- Type or Flared-tube Fittings) THIS DOCUMENT CONTAINS 3 I PAGES. I FSC 1660 1 A -a .O31 R t- INTAKE HOSE FITTING (LEAKAGE TEST) 016 X 45 CHAMFER +. Oo4 DIA THRU -. O01 375 DP. I_“,.- y 1-31/32-12 U
5、N-BA MAJOR DIA 1.9687- 1.9676 PITCH DIA I. 9146- 1.908C MINOR DIA 1.8665 MAX 1- 2.687 SECTION A-A FIGURE 8. TEST FIXTURE DEXAILS (SHEET 1) 26 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MEDIUM DIAMOND KNURL MIL-V-81552A rB INTAKE HOSE FITTING (EX
6、HALATION-INHALATION) 2-3/16-12 UN-2B MINOR DIA 2.09 PITCHDIA 2.13 MAJOR DIA 2.18 31/32-32 UN-2B MINOR DIA. 9349-.9383 PITCH DIA .9484-. 9526 MAJOR DIA. 9687 MiN SECTION B-B - - +. 005 DIA 1.125 DIA FIGURE 8. TEST FETURE DETAILS (SHEET 2) 27 Provided by IHSNot for ResaleNo reproduction or networking
7、permitted without license from IHS-,-,-MILV- 8 155 2A MEDIUM DIAMOND KNURL .o93 2-3/16-12 UN-2B MINOR DIA 2.0973 - 2.1063 PITCH DIA 2.1334- 2.1402 MAJOR DIA 2.1875 MIN CAP - SECTION C-C 1-31/32-12 UN-2B MINOR DIA 1.87 MAJOR DIA 1.9687 MIN MEDNM DIAMOND KNURL 2-3/16-12 UN-BA - COUPLING SECTION D-D FI
8、GURE 8. TEST FMTURE DETAILS (SHEET 3) 28 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MI L-V- 8 155 2A BODY MEDIUM DIAMOND KNURL r 2-3/16-12 UN-PA bAJOR DIA 2.1875- 2.1763 PITCH DIA 2.1334- 2.1266 .O31 X 45“ CHAMFER 2-3/16-12 UN-2B - MINOR DIA 2.0
9、973 - 2.1063 PITCH DIA 2.1334 - 2.1402 MAJOR DIA 2.1875 MIN 1/8-27 NPGC PLACES) SECTION E-E GASKET TYPES * - .- MSH NO.1 Q I H IJ 1,28 -3 *SEE NOTE 1C AND FIGURE 9. GASKET SECTION F-F FIGURE 8. TEST FIXTURE DETAILS (DHEET 4) 29 Provided by IHSNot for ResaleNo reproduction or networking permitted wit
10、hout license from IHS-,-,-Ml LV- 8 1552A 31/32-32 UN-BA MATOR DIA .9687-. 9633 PITCH DIA .9484-. 9442 MINOR DIA ,9304 MAX MS22056-4 MODIFIED DIAPHRAGM INLET CECK VALVE fSEE NOTE 7) - 1.250 DIA 4 INLET CHECK VALVE GASICET NOTES: - - 1. MATERIAL: (A) BODY; ALUMINUM ALLOY, 2024 TEMPER TA, QQ-A-200/3B.
11、(B) INTAKE HOSE FITTING (LEAKAGE TEST), INTAKE HOSE FITTING (EXHALATION - INHALATION), CAP, COUPLING; BRASS, BQ-B-626, COMP. 622, HALF HARD. (C) GASKETB; SILICONE RUBBER, ZZ-R-765. (D) SEAMLESS TUBE; COPPER, WW-T-799 2. SURFACE ROUGHNESS: 12s/ ALL OVER EXCEPT AS NOTED. SURFACE CONDITION FINISH 3. TH
12、READ DIMENSIONS AND DESIGNATIONS SHALL BE INTERPRETED IN ACCORDANCE mH DESIGNATIONS SHALL BE INTERPRETED IN ACCORDANCE WITH USAS B46.1-1962. MiL-STD-9. 4. REMOVE ALL BURRS AND BREAK ALL SHARP EDGES. 5. DIMENSIONS IN INCHES. UNLESS OTHERWISE SPECIFIED. TOLERANCES: DECIMALS f. 010, ANGLES ?i: INTERPRE
13、T DIMENSIONING AND TOLERANCING IN ACCORDANCE %“l?H USAS Y14.5-1966. 6. ALL BRAZING SHALL BE IN ACCORDANCE WTI“ MIL-B-7883. 7. THE INLET CHECK VALVE SHALL BE MS22056-4,%“l?HOUT CAP AND MODIFIED AS SHOWN. 8. INTERPRET DRAWING IN ACCORDANCE WITH MIL-STD100. FIGURE 8. TEST FIXTURE DETAILS HEEX 6) 30 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
