4820-01-053-0223, VALVE,SAFETY RELIEF

6685-01-053-0224 CONTROL,TEMPERATURE,INDICATING

National Stock Number:
4820-01-053-0223

Federal Supply Class:
4820

National Item Identification Number:
010530223

Description:
VALVE,SAFETY RELIEF

Detail:
A valve designed to automatically release excessive pressures. It is actuated by static pressure upstream of the valve and is used as a safety valve or relief valve, and may be set to close at a predetermined pressure. It is not designed for regulation of continuously fluctuating loads. It may be inline or cartridge (manifold) design. Excludes VALVE (1), RELIEF, PRESSURE AND TEMPERATURE.

Manufacturer Information:

10556186	19200	US ARMY ARDEC RDECOM
P43-673-7	91816	CIRCOR AEROSPACE, INC.

Techincal Specification:

CONNECTION STYLE	EXTERNAL SEAT FOR GASKET SEAL (BOSS) ALL ENDS
CONNECTION TYPE	THREADED EXTERNAL BOSS ALL ENDS
FLOW CONTROL DEVICE	POPPET
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-A-225/6 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-225/8 FED SPEC 2ND MATERIAL RESPONSE OR QQ-A-200/3 FED SPEC 3RD MATERIAL RESPONSE OR QQ-A-200/8 FED SPEC 4TH MATERIAL RESPONSE BODY
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-W-423,COND B FED SPEC 2ND MATERIAL RESPONSE FLOW CONTROL DEVICE
MATERIAL	ALUMINUM ALLOY 2024 OR ALUMINUM ALLOY 6061 BODY
MATERIAL	RUBBER SEAT
MATERIAL	STEEL COMP 302 OR STEEL COMP 304 FLOW CONTROL DEVICE
MAXIMUM OPERATING TEMP	150.0 FAHRENHEIT SINGLE RESPONSE
NOMINAL THREAD SIZE	0.375 INCHES ALL ENDS
OPERATING PRESSURE	25.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE
VALVE OPERATION METHOD	AIR
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-A-8625,TYPE1,CLASS1 MIL SPEC SINGLE TREATMENT RESPONSE LOCATION NOT OTHERWISE SPECIFIED
SURFACE TREATMENT	ANODIZE LOCATION NOT OTHERWISE SPECIFIED
THREAD CLASS	3A ALL ENDS
THREAD DIRECTION	RIGHT-HAND ALL ENDS
THREAD SERIES DESIGNATOR	UNF ALL ENDS

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