4820-00-931-1009, VALVE,PRESSURE EQUALIZING,GASEOU

National Stock Number:
4820-00-931-1009

Federal Supply Class:
4820

National Item Identification Number:
009311009

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.

Manufacturer Information:

10211716

18876

U S ARMY AVIATION AND MISSILE COMMAND

Techincal Specification:

END CONNECTION QUANTITY	1
BODY STYLE	SINGLE CONNECTION, STRAIGHT FLOW
FIRST END CONNECTION TYPE	THREADED EXTERNAL BOSS
FIRST END STYLE DESIGNATOR	EXTERNAL SEAT FOR GASKET SEAL
FIRST END THREAD CLASS	3A
FIRST END THREAD DIRECTION	RIGHT-HAND
FLOW CONTROL DEVICE	DISK, FLAT
FURNISHED ITEMS	MANUAL OPERATING DEVICE
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-A-225/9, ALLOY 7075, 0 FED SPEC SINGLE MATERIAL RESPONSE BODY
MATERIAL	ALUMINUM ALLOY 7075 BODY
OPENING PRESSURE SETTING	5.0 POUNDS PER SQUARE INCH
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-A-8625, TYPE 2 MIL SPEC SINGLE TREATMENT RESPONSE LOCATION NOT OTHERWISE SPECIFIED
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-A-8625, TYPE 2 MIL SPEC SINGLE TREATMENT RESPONSE OUTSIDE
SURFACE TREATMENT	ANODIZE OUTSIDE
VALVE RELIEF DESIGN TYPE	PRESSURE
VALVE VENTING DESIGN TYPE	ATMOSPHERIC

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