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		                        | National Stock Number:
 4820-00-906-1039
 
 Federal Supply Class:
 4820
 
 National Item Identification Number:
 009061039
 
 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:
 
 | MS0000330 | KB236 | LOCKHEED MARTIN INFORMATION SYSTEMS UK |  | MS0000330 | U4861 | LOCKHEED MARTIN UK LTD SIMULATION TR INING AND SUPPORT |  | TA321 | 01347 | ARIZONA GEAR AND MFG CO |  | TA321 | 08992 | AGM CONTAINER CONTROLS INC |  | MS18014 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |  | MS18014-1 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | 
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 Techincal Specification:
 
 | BODY STYLE | STRAIGHT THRU |  | DISK LOADING METHOD | WEIGHT |  | END CONNECTION QUANTITY | 1 |  | FIRST END CONNECTION TYPE | THREADED EXTERNAL BOSS |  | FIRST END STYLE DESIGNATOR | EXTERNAL SEAT FOR GASKET SEAL |  | FIRST END THREAD DIRECTION | RIGHT-HAND |  | FIRST END THREAD CLASS | 2A |  | FLOW CONTROL DEVICE | DISK, FLAT |  | FURNISHED ITEMS | NUT AND GASKET |  | MATERIAL | ALUMINUM ALLOY BODY |  | MEDIA FOR WHICH DESIGNED | GAS |  | SURFACE TREATMENT | ANODIZE OUTSIDE |  | VALVE RELIEF DESIGN TYPE | PRESSURE AND VACUUM |  | VALVE VENTING DESIGN TYPE | ATMOSPHERIC | 
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