NSN 4820-00-287-2978
Part Details | SAFETY RELIEF VALVE
4820-00-287-2978 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.
Alternate Parts: MILV20065, TYA1CLC34 400298T0354SBU, TYA1CLC3-4 400-298T0354SBU, 4820-00-287-2978, 00-287-2978, 4820002872978, 002872978
Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
---|---|---|---|
48 | JAN 01, 1963 | 00-287-2978 | 05488 ( VALVE, SAFETY RELIEF ) |
REFERENCE DRAWINGS & PICTURES
ANGLE

Cross Reference | NSN 4820-00-287-2978
Part Number | Cage Code | Manufacturer |
---|---|---|
MILV20065 | 81349 | MILITARY SPECIFICATIONSPROMULGATED BY MILITARY |
TYA1CLC3-4 400-298T0354SBU | 03950 | NAVAL INVENTORY CONTROL POINTMECHANICSBURG |
Technical Data | NSN 4820-00-287-2978
Characteristic | Specifications |
---|---|
STYLE DESIGNATOR | A ANGLE |
VALVE SIZE | 0.750 INCHES |
FLOW CONTROL DEVICE | POPPET |
VALVE OPERATION METHOD | AUTOMATIC |
BONNET TYPE | EXPOSED SPRING |
BONNET ATTACHMENT METHOD | UNION |
DISK LOADING METHOD | SPRING |
ADJUSTABLE PRESSURE RANGE | 136.0 TO 169.0 POUNDS PER SQUARE INCH |
NONDEFINITIVE SPEC/STD DATA | A1 TYPE AND C CLASS |