Part Number
Part Number:
NSN:
NIIN:
Item Name:
VALVE , CHECK
Definition:
A VALVE PERMITTING FLOW IN ONE DIRECTION ONLY. IT DOES NOT HAVE A STEM, EXCEPT WHEN EQUIPPED WITH A LEVER AND WEIGHT AND HAS NO PRESSURE ADJUSTMENT. IT MAY BE INLINE OR CARTRIDGE (MANIFOLD) DESIGN.
CAGE Information
| Code | Company |
|---|---|
| 91816 | CIRCOR AEROSPACE INC. DBA CIRCLE SEA |
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 |
|---|---|---|
| THSD | THREAD SERIES DESIGNATOR | UNF 2ND END |
| THSD | THREAD SERIES DESIGNATOR | UNF 2ND END |
| CWFD | NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED | 0.250 INCHES 1ST END |
| SFTT | SURFACE TREATMENT | PASSIVATE |
| MATT | MATERIAL | STEEL COMP 303 OVERALL |
| CWFD | NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED | 0.250 INCHES 2ND END |
| AHNC | CONNECTION STYLE | FLARED (TUBE) 1ST END |
| AQLR | VALVE OPERATION METHOD | AUTOMATIC |
| CQRB | SEAT ANGLE | 37.0 DEGREES 1ST END |
| MEDA | MEDIA FOR WHICH DESIGNED | AIR 1ST RESPONSE |
| STYL | STYLE DESIGNATOR | STRAIGHT THRU |
| BBJX | MOUNTING POSITION | VERTICAL |
| AAJD | THREAD CLASS | 3A 1ST END |
| AWLS | CONNECTION TYPE | THREADED EXTERNAL BOSS 2ND END |
| AHNC | CONNECTION STYLE | EXTERNAL SEAT FOR GASKET SEAL (BOSS) 2ND END |
| AWLS | CONNECTION TYPE | THREADED EXTERNAL TUBE 1ST END |
| CQGM | MAXIMUM OPERATING PRESSURE | 3000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |
| AAJF | THREAD DIRECTION | RIGHT-HAND 1ST END |
| AAJD | THREAD CLASS | 3A 2ND END |
| ADQU | FLOW CONTROL DEVICE | POPPET |
| THSD | THREAD SERIES DESIGNATOR | UNF 1ST END |
| ADSU | DISK LOADING METHOD | SPRING |
| CQJX | NOMINAL THREAD SIZE | 0.438 INCHES 2ND END |
| MEDA | MEDIA FOR WHICH DESIGNED | STEAM 2ND RESPONSE |
| MEDA | MEDIA FOR WHICH DESIGNED | WATER, FRESH 3RD RESPONSE |
| AAJF | THREAD DIRECTION | RIGHT-HAND 2ND END |
| CQJX | NOMINAL THREAD SIZE | 0.437 INCHES 1ST END |
| AEHZ | MAXIMUM OPERATING TEMP | 500.0 DEG FAHRENHEIT SINGLE RESPONSE |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |