Part Number
Part Number:
NSN:
NIIN:
Item Name:
VALVE , SEATLESS
Definition:
A VALVE THAT CONTROLS FLOW BY A CYLINDRICAL PISTON SLIDING VERTICALLY THROUGH PACKING RINGS SEPARATED BY A METAL CAGE HAVING PORTS THROUGH WHICH FLOW MAY PROCEED WHEN THE VALVE IS OPEN. ROTATION OF THE THREADED STEM IS USED TO REGULATE THE POSITION OF THE PISTON. SEE ALSO VALVE, PLUG AND VALVE, WEIGHTED CONTROL, PISTON.
CAGE Information
| Code | Company |
|---|---|
| 53711 | NAVAL SEA SYSTEMS COMMAND |
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 |
|---|---|---|
| CRTL | CRITICALITY CODE JUSTIFICATION | ZZZY |
| ZZZY | REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS | MATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS. |