| Item Name | Valve Safety Relief |
| Federal Supply Group (FSG) | Valves |
| Federal Supply Class (FSC) | 4820 Valves Nonpowered |
| National Item Identification Number (NIIN) | 00-257-1666 (002571666) |
| NCB Code | USA (00) |
| Manufacturer | Metadure Parts And Sales Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 2A 1ST END |
| AAJF | THREAD DIRECTION | RIGHT-HAND 1ST END |
| ADQU | FLOW CONTROL DEVICE | POPPET |
| ADSR | BONNET TYPE | INSIDE SCREW |
| ADST | BONNET ATTACHMENT METHOD | THREADED |
| AHNC | CONNECTION STYLE | EXTERNAL SEAT FOR GASKET SEAL (BOSS) 1ST END |
| AQLR | VALVE OPERATION METHOD | AUTOMATIC |
| AWLS | CONNECTION TYPE | THREADED EXTERNAL BOSS 1ST END |
| CQJX | NOMINAL THREAD SIZE | 0.562 INCHES 1ST END |
| MATT | MATERIAL | ALUMINUM ALLOY BODY |
| MATT | MATERIAL | STEEL FLOW CONTROL DEVICE |
| SFTT | SURFACE TREATMENT | ANODIZE |
| STYL | STYLE DESIGNATOR | ANGLE |
| THSD | THREAD SERIES DESIGNATOR | UNF 1ST END |
| TMQY | FURNISHED ITEMS AND QUANTITY | 1 GASKET |
| Relevant Components for NSN - 4820-00-257-1666, 4820002571666 | ||||
| 4810-01-082-6236 (4810010826236) | 4820-01-353-3012 (4820013533012) | 4820-01-343-6188 (4820013436188) | 4820-01-182-0778 (4820011820778) | |
| 4820-01-279-9726 (4820012799726) | 4820-01-650-3218 (4820016503218) | 4820-01-554-6644 (4820015546644) | 4810-01-508-9300 (4810015089300) | |
| 4820-01-050-6401 (4820010506401) | 4820-01-565-3783 (4820015653783) | 4820-01-465-6661 (4820014656661) | 4820-01-316-3323 (4820013163323) | |
If You’re Ever Looking for NSN parts Or Have an Aircraft On Ground Situation, Don’t forget That We offer Competitive Pricing and Guaranteed On-Time Delivery.
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