Part Number
Definition:
A VALVE CONSISTING OF A SINGLE DEADWEIGHT LOADED DISK, OR TWO DEADWEIGHT LOADED DISKS EACH WITH A SEPERATE SEAT. IT IS SPECIFICALLY DESIGNED FOR THE RELIEF OF SMALL PRESSURE AND VACUUM CONDITIONS WITHIN A TANK OR OTHER CONTAINER TO OR FROM THE ATMOSPHERE. THE CENTER OF A SINGLE DEADWEIGHT LOADED DISK MAY CONTAIN A SPRING LOADED DISK FORMING AN ADDITIONAL SEAT OR APERTURE. IT MAY BE SPRING LOADED AND/OR EQUIPPED WITH A MANUAL UNLOADER ON EITHER THE PRESSURE OR VACUUM SIDE. EXCLUDE VALVE, VACUUM BREAKING.
CAGE Information
| Code | Company |
|---|---|
| 18876 | U S ARMY AVIATION AND MISSILE COMMAN |
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 |
|---|---|---|
| AFLF | VALVE RELIEF DESIGN TYPE | PRESSURE AND VACUUM |
| ADSV | OPENING PRESSURE SETTING | 2.5 POUNDS PER SQUARE INCH |
| ACLJ | FIRST END THREAD SIZE AND SERIES/TYPE DESIGNATOR | 1.031-14 UNS |
| ACKL | MEDIA FOR WHICH DESIGNED | AIR |
| ADQZ | END CONNECTION QUANTITY | 1 |
| ABFF | FURNISHED ITEMS | NUT AND WASHER |
| ACLL | FIRST END THREAD DIRECTION | RIGHT-HAND |
| ACSH | SEAT MATERIAL | PLASTIC, POLYTETRAFLUOROETHYLENE |
| AFLE | VALVE VENTING DESIGN TYPE | ATMOSPHERIC |
| AAFZ | BODY MATERIAL | ALUMINUM ALLOY, QQ-A-225/6, ALLOY 2024, T4 |
| AAJP | OUTSIDE SURFACE TREATMENT | ANODIZED AND OXIDE FILM, MIL-C-5541 |
| ADQU | FLOW CONTROL DEVICE | POPPET |
| ADSU | DISK LOADING METHOD | SPRING |
| ACKN | FIRST END STYLE DESIGNATOR | EXTERNAL SEAT FOR GASKET SEAL |
| ACKM | FIRST END CONNECTION TYPE | THREADED EXTERNAL BOSS |
| ABJH | TEMP RATING | NOT RATED |
| AAQL | BODY STYLE | SINGLE CONNECTION, STRAIGHT FLOW |
| AAJJ | MAXIMUM OPERATING PRESSURE | NOT RATED |