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National Stock Number: 4820-01-240-2724
Federal Supply Class: 4820
National Item Identification Number: 012402724
Description: VALVE,PRESSURE EQUALIZING,GASEOU
Detail: A VALVE CONSISTING OF A SINGLE DEADWEIGHT LOADED DISK, OR TWO DEADWEIGHT LOADED DISKS EACH WITH A SEPERATE SEAT. IT IS SPECIFICALLY DESIGNED FOR THE RELIEF OF SMALL PRESSURE AND VACUUM CONDITIONS WITHIN A TANK OR OTHER CONTAINER TO OR FROM THE ATMOSPHERE. THE CENTER OF A SINGLE DEADWEIGHT LOADED DISK MAY CONTAIN A SPRING LOADED DISK FORMING AN ADDITIONAL SEAT OR APERTURE. IT MAY BE SPRING LOADED AND/OR EQUIPPED WITH A MANUAL UNLOADER ON EITHER THE PRESSURE OR VACUUM SIDE. EXCLUDE VALVE, VACUUM BREAKING.
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Manufacturer Information:
| 284-0290-004 | 94756 | THE BOEING COMPANY | | 50031 | C2796 | MAIBACHINDUSTRIE-PLASTIC-GESELLSCHAF MBH | | TA770-075C-075C-R | 08992 | AGM CONTAINER CONTROLS INC | | MIL-V-27166 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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Techincal Specification:
| END CONNECTION QUANTITY | 1 | | BODY STYLE | SINGLE CONNECTION, STRAIGHT FLOW | | FIRST END STYLE DESIGNATOR | PLAIN | | FIRST END OUTSIDE DIAMETER TUBE ACCOMMODATED | 2.050 INCHES NOMINAL | | FIRST END THREAD CLASS | 2A | | FLOW CONTROL DEVICE | DISK, FLAT | | MATERIAL | ALUMINUM ALLOY BODY | | MEDIA FOR WHICH DESIGNED | AIR | | NONDEFINITIVE SPEC/STD DATA | 3 TYPE AND 1 CLASS | | VALVE RELIEF DESIGN TYPE | PRESSURE AND VACUUM | | VALVE VENTING DESIGN TYPE | ATMOSPHERIC | | SPECIFICATION/STANDARD DATA | 81349-MIL-V-27166 GOVERNMENT SPECIFICATION | | SURFACE TREATMENT | ANODIZE OUTSIDE | | TEMP RATING | 160.0 FAHRENHEIT |
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