4820-00-287-4628 VALVE,SAFETY RELIEF Index 4820-00-287-4633 VALVE,SAFETY RELIEF

National Stock Number:
4820-00-287-4629

Federal Supply Class:
4820

National Item Identification Number:
002874629

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:
4900-984114ASSY780064NAVAL SHIP SYSTEMS COMMAND
4900-984114ATL3PC1T05-7T012-1680064NAVAL SHIP SYSTEMS COMMAND
4900-984114PC1T05-7T012-1680064NAVAL SHIP SYSTEMS COMMAND
569-4805-1189763ALT2PCV780064NAVAL SHIP SYSTEMS COMMAND
569-4900-1191405ALT3PCV1180064NAVAL SHIP SYSTEMS COMMAND
569-4900-1191408ALT2PCV780064NAVAL SHIP SYSTEMS COMMAND
569-4900-1191412ALT1PCV1580064NAVAL SHIP SYSTEMS COMMAND


Techincal Specification:
OPENING PRESSURE SETTING120.0 POUNDS PER SQUARE INCH
FEATURES PROVIDEDPRESSURE TIGHT OUTLET SIDE
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSCLEANING, PACKAGING AND MARKING IAW MIL-STD-1330D
CRITICALITY CODE JUSTIFICATIONZZZY
THE MANUFACTURERS DATA
MANUFACTURERS CODE80064
DESIGN CONTROL REFERENCE4900-984114PC1T05-7T012-16
STYLE DESIGNATORANGLE
VALVE OPERATION METHODAUTOMATIC
MATERIALCOPPER ALLOY BODY
NICKEL ALLOY SEAT
FLOW CONTROL DEVICEDISK
CONNECTION TYPETHREADED INTERNAL PIPE 1ST END
THREADED EXTERNAL PIPE 2ND END
CONNECTION STYLEPLAIN,OPTIONAL END(PIPE) 1ST END
PLAIN (PIPE) 2ND END
NOMINAL PIPE SIZE ACCOMMODATED0.500 INCHES 1ST END
0.750 INCHES 2ND END
THREAD SERIES DESIGNATORNPT 1ST END
NPT 2ND END
NOMINAL THREAD SIZE0.500 INCHES 1ST END
0.750 INCHES 2ND END
THREAD QUANTITY PER INCH14 1ST END
14 2ND END
THREAD DIRECTIONRIGHT-HAND 1ST END
RIGHT-HAND 2ND END
DISK LOADING METHODSPRING


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