4820-01-310-7693 VALVE,SAFETY RELIEF Index 4810-01-310-7695 VALVE,BUTTERFLY

National Stock Number:
4820-01-310-7694

Federal Supply Class:
4820

National Item Identification Number:
013107694

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:
1551AS140-130003NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER
1551AS140-1CP03950NAVAL INVENTORY CONTROL POINT MECHANICSBURG
MIL-I-5221181348FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC


Techincal Specification:
VALVE OPERATION METHODMANUAL
MATERIALSTEEL COMP 316 BODY
MAXIMUM OPERATING PRESSURE6000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
CONNECTION TYPETHREADED EXTERNAL PIPE 1ST END
THREADED INTERNAL PIPE 2ND END
CONNECTION STYLEPLAIN (PIPE) 1ST END
PLAIN,OPTIONAL END(PIPE) 2ND END
THREAD SERIES DESIGNATORNPT 1ST END
NPT 2ND END
DISK LOADING METHODSPRING
ADJUSTABLE PRESSURE RANGE2250.0 TO 3000.0 POUNDS PER SQUARE INCH
DEPARTURE FROM CITED DOCUMENTCLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
CRITICALITY CODE JUSTIFICATIONZZZW
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE81348
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCEMIL-I-52211


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