Part Number
Part Number:
NSN:
NIIN:
Item Name:
VALVE , RELIEF , PRESSURE AND TEMPER
Definition:
A VALVE DESIGNED TO RELEASE UNDER EXCESSIVE PRESSURE AND/OR EXCESSIVE TEMPERATURE BY OPENING AT A PREDETERMINED PRESSURE AND/OR TEMPERATURE. THERMOSTATICALLY OPERATED VALVES CLOSE WHEN THE PRESSURE IS RELIEVED OR THE TEMPERATURE IS REDUCED. FUSIBLE PLUG VALVES REQUIRE REPLACEMENT OF THE PLUG. SEE ALSO VALVE, SAFETY RELIEF AND VALVE, REGULATING. TEMPERATURE.
CAGE Information
| Code | Company |
|---|---|
| 99517 | VACCO INDUSTRIES DIV VACCO |
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 |
|---|---|---|
| ACLS | SECOND END CONNECTION TYPE | UNTHREADED INTERNAL TUBE |
| AEVX | TEMP ADJUSTABILITY | NOT ADJUSTABLE |
| AAFZ | BODY MATERIAL | STEEL, QQ-S-763, CLASS 303 |
| ACKM | FIRST END CONNECTION TYPE | UNTHREADED INTERNAL TUBE |
| ACSH | SEAT MATERIAL | PLASTIC, POLYTETRAFLUOROETHYLENE |
| ADQZ | END CONNECTION QUANTITY | 2 |
| ADSW | ADJUSTABLE PRESSURE RANGE | +125.0/+140.0 POUNDS PER SQUARE INCH |
| ADQU | FLOW CONTROL DEVICE | POPPET |
| ACLR | SECOND END RELATIONSHIP WITH FIRST END | NOT IDENTICAL |
| ACKN | FIRST END STYLE DESIGNATOR | PLAIN |
| AAQL | BODY STYLE | TEE GIVE "ADQL" AND "ADQM" ONLY WHEN FLANGED ALL ENDS |
| ADQV | FLOW CONTROL DEVICE MATERIAL | STEEL, AMS 5643 |
| ADSV | OPENING PRESSURE SETTING | 125.0 POUNDS PER SQUARE INCH |
| ADQM | FIRST CONNECTION FACE TO CENTERLINE DISTANCE | 2.500 INCHES NOMINAL |
| ACLT | SECOND END STYLE DESIGNATOR | SOCKET |