Part Number
Part Number:
NSN:
NIIN:
Item Name:
VALVE , SAFETY RELIEF
Definition:
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.
CAGE Information
| Code | Company |
|---|---|
| 20418 | DRS SUSTAINMENT SYSTEMS INC. DIV DRS |
Federal Supply Class
Title
VALVES, NONPOWERED
Inclusions:
INCLUDES AUTOMATIC NONPOWERED VALVES; GATE, GLOBE, ANGLE, CHECK, AND RELIEF VALVES; COCKS.
Exclusions:
EXCLUDES FIRE HYDRANTS (FSC 4210); SPRINKLER HEADS (FSC 4210); VALVES SPECIFICALLY DESIGNED FOR USE WITH FIRE FIGHTING EQUIPMENT (FSC 4210); PLUMBING EQUIPMENT, AND THE LIKE (FSC 4540).
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| MATT | MATERIAL | STEEL CORROSION RESISTING SEAT |
| THSD | THREAD SERIES DESIGNATOR | NPTF 2ND END |
| CWFD | NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED | 0.250 INCHES 2ND END |
| AQLR | VALVE OPERATION METHOD | AUTOMATIC |
| CQRB | SEAT ANGLE | 37.0 DEGREES 1ST END |
| THSD | THREAD SERIES DESIGNATOR | NPT 1ST END |
| AEQJ | MINIMUM OPERATING TEMP | -100.0 DEG FAHRENHEIT |
| CQGM | MAXIMUM OPERATING PRESSURE | 1000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |
| AEHZ | MAXIMUM OPERATING TEMP | 400.0 DEG FAHRENHEIT SINGLE RESPONSE |
| AWLS | CONNECTION TYPE | THREADED EXTERNAL TUBE 1ST END |
| STYL | STYLE DESIGNATOR | ERR-090 |
| AWLS | CONNECTION TYPE | THREADED INTERNAL TUBE 2ND END |
| AAJF | THREAD DIRECTION | RIGHT-HAND ALL ENDS |
| ADSU | DISK LOADING METHOD | SPRING |
| AHNC | CONNECTION STYLE | ERR-090 ERR-100 |
| CSDC | OPENING PRESSURE SETTING | 25.0 POUNDS PER SQUARE INCH |
| MEDA | MEDIA FOR WHICH DESIGNED | WATER-OIL-GAS SINGLE RESPONSE |
| FEAT | SPECIAL FEATURES | WITH TEFLON SEAL |
| MATT | MATERIAL | STEEL COMP 303 BODY |
| CQJX | NOMINAL THREAD SIZE | 0.250 INCHES ALL ENDS |
| AGAV | END ITEM IDENTIFICATION | AIRCRAFT, HERCULES C |