NSN 4820-00-228-1689
Part Details | SAFETY RELIEF VALVE
4820-00-228-1689 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: MILV8813, MIL-V-8813, MS28893D43750, MS28893-D4-3750, 4820-00-228-1689, 00-228-1689, 4820002281689, 002281689
Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
---|---|---|---|
48 | FEB 05, 1969 | 00-228-1689 | 05488 ( VALVE, SAFETY RELIEF ) |
REFERENCE DRAWINGS & PICTURES
STRAIGHT THRU NOTE: TO BE USED FOR VALVE BODIES OF ONE SECTION ONLY.

Cross Reference | NSN 4820-00-228-1689
Part Number | Cage Code | Manufacturer |
---|---|---|
MIL-V-8813 | 81349 | MILITARY SPECIFICATIONSPROMULGATED BY MILITARY |
MS28893-D4-3750 | 96906 | MILITARY STANDARDSPROMULGATED BY MILITARY DEPARTMENTS |
Technical Data | NSN 4820-00-228-1689
Characteristic | Specifications |
---|---|
STYLE DESIGNATOR | STRAIGHT THRU NOTE: TO BE USED FOR VALVE BODIES OF ONE SECTION ONLY. |
FLOW CONTROL DEVICE | POPPET |
VALVE DISCHARGE FLOW RATE | 2.5 GALLONS PER MINUTE |
VALVE OPERATION METHOD | AUTOMATIC |
DISK LOADING METHOD | SPRING |
OPENING PRESSURE SETTING | 3750.0 POUNDS PER SQUARE INCH |
ADJUSTABLE PRESSURE RANGE | 2300.0 TO 3850.0 POUNDS PER SQUARE INCH |