| Item Name | Valve Safety Relief |
| Federal Supply Group (FSG) | Valves |
| Federal Supply Class (FSC) | 4820 Valves Nonpowered |
| National Item Identification Number (NIIN) | 00-837-0210 (008370210) |
| NCB Code | USA (00) |
| Manufacturer | Crissair Inc, Sargent Fletcher Inc, Ausco Products Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJF | THREAD DIRECTION | RIGHT-HAND 1ST END |
| AAJF | THREAD DIRECTION | RIGHT-HAND 2ND END |
| ADQU | FLOW CONTROL DEVICE | DISK |
| CQJX | NOMINAL THREAD SIZE | 0.438 INCHES 2ND END |
| CQJX | NOMINAL THREAD SIZE | 0.562 INCHES 1ST END |
| CQRB | SEAT ANGLE | 37.0 DEGREES 2ND END |
| CSDC | OPENING PRESSURE SETTING | 100.0 POUNDS PER SQUARE INCH |
| CWFD | NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED | 0.250 INCHES 2ND END |
| CWFD | NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED | 0.375 INCHES 1ST END |
| MATT | MATERIAL | ALUMINUM ALLOY SEAT |
| THSD | THREAD SERIES DESIGNATOR | UNF 1ST END |
| ADSU | DISK LOADING METHOD | SPRING |
| CMLP | THREAD QUANTITY PER INCH | 18 1ST END |
| CMLP | THREAD QUANTITY PER INCH | 20 2ND END |
| CQRB | SEAT ANGLE | 37.0 DEGREES 1ST END |
| FEAT | SPECIAL FEATURES | 3/8 IN. VALVE SIZE |
| MATT | MATERIAL | ALUMINUM ALLOY BODY |
| THSD | THREAD SERIES DESIGNATOR | UNF 2ND END |
| Components Related to NSN - 4820-00-837-0210, 4820008370210 | ||||
| 4820-01-279-1339 (4820012791339) | 4820-01-250-8611 (4820012508611) | 4810-01-039-5970 (4810010395970) | 4820-01-284-4289 (4820012844289) | |
| 4820-01-671-6098 (4820016716098) | 4820-00-287-2199 (4820002872199) | 4820-01-277-6509 (4820012776509) | 4820-01-178-7551 (4820011787551) | |
| 4820-01-064-2440 (4820010642440) | 4820-00-391-3785 (4820003913785) | 4820-00-066-2358 (4820000662358) | 4820-01-197-6798 (4820011976798) | |
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