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 |
|---|---|
| 49671 | LOCKHEED MARTIN CORP LOCKHEED MARTIN |
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 |
|---|---|---|
| AEHZ | MAXIMUM OPERATING TEMP | -40.0 DEG FAHRENHEIT 1ST RESPONSE |
| MATT | MATERIAL | STEEL COMP 303 SEAT |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | FED STD 66 FED STD SINGLE MATERIAL RESPONSE STEM |
| CSDC | OPENING PRESSURE SETTING | 15.0 POUNDS PER SQUARE INCH |
| CWFD | NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED | 0.250 INCHES 1ST END |
| MEDA | MEDIA FOR WHICH DESIGNED | ACETYLENE 2ND RESPONSE |
| THSD | THREAD SERIES DESIGNATOR | UNJF 1ST END |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | FED STD 66 FED STD SINGLE MATERIAL RESPONSE SEAT |
| CBBL | FEATURES PROVIDED | PRESSURE TIGHT OUTLET SIDE |
| AQLR | VALVE OPERATION METHOD | AUTOMATIC |
| CQRB | SEAT ANGLE | 37.0 DEGREES 1ST END |
| MEDA | MEDIA FOR WHICH DESIGNED | AIR 1ST RESPONSE |
| CQCY | ADJUSTABLE PRESSURE RANGE | +0.0/+200.0 POUNDS PER SQUARE INCH |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | FED STD 66 FED STD SINGLE MATERIAL RESPONSE BODY |
| AAJD | THREAD CLASS | 3A 1ST END |
| MATT | MATERIAL | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR FLOW CONTROL DEVICE AND STEEL COMP 303 FLOW CONTROL DEVICE |
| AWLS | CONNECTION TYPE | THREADED EXTERNAL TUBE 1ST END |
| AAJF | THREAD DIRECTION | RIGHT-HAND 1ST END |
| STYL | STYLE DESIGNATOR | ERR-090 |
| ADQU | FLOW CONTROL DEVICE | POPPET |
| MEDA | MEDIA FOR WHICH DESIGNED | AMMONIA, GASEOUS 3RD RESPONSE |
| ADSU | DISK LOADING METHOD | SPRING |
| MATT | MATERIAL | STEEL COMP 303 STEM |
| AHNC | CONNECTION STYLE | ERR-090 ERR-100 |
| CQGM | MAXIMUM OPERATING PRESSURE | 200.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |
| CQJX | NOMINAL THREAD SIZE | 0.437 INCHES 1ST END |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | FED STD 66 FED STD 2ND MATERIAL RESPONSE FLOW CONTROL DEVICE |
| MATT | MATERIAL | STEEL COMP 303 BODY |
| AEHZ | MAXIMUM OPERATING TEMP | 270.0 DEG FAHRENHEIT 2ND RESPONSE |
| MEDA | MEDIA FOR WHICH DESIGNED | REFRIGERANT 12 4TH RESPONSE |
| MEDA | MEDIA FOR WHICH DESIGNED | HYDROGEN 5TH RESPONSE |