| Item Name | Valve Safety Relief |
| Federal Supply Group (FSG) | Valves |
| Federal Supply Class (FSC) | 4820 Valves Nonpowered |
| National Item Identification Number (NIIN) | 00-529-4181 (005294181) |
| NCB Code | USA (00) |
| Manufacturer | The Boeing Company, Bahr Machine Co, Hydro Aire Inc, National Machine Co Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3B 1ST END |
| AAJF | THREAD DIRECTION | RIGHT-HAND 1ST END |
| ADSU | DISK LOADING METHOD | SPRING |
| ADSY | VALVE DISCHARGE FLOW RATE | 7.0 GALLONS PER MINUTE |
| ADZH | RENEWABLE SEAT RING TYPE | PRESSED-IN |
| AQLR | VALVE OPERATION METHOD | AUTOMATIC |
| AWLS | CONNECTION TYPE | THREADED INTERNAL TUBE 1ST END |
| CBBL | FEATURES PROVIDED | PRESSURE TIGHT OUTLET SIDE |
| CMLP | THREAD QUANTITY PER INCH | 18 1ST END |
| CQJX | NOMINAL THREAD SIZE | 0.562 INCHES 1ST END |
| CSDC | OPENING PRESSURE SETTING | 3500.0 POUNDS PER SQUARE INCH |
| CWFD | NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED | 0.375 INCHES 1ST END |
| MATT | MATERIAL | ALUMINUM ALLOY BODY |
| MATT | MATERIAL | STEEL SEAT |
| SUPP | SUPPLEMENTARY FEATURES | APPL TO ACFT,TYPE C-135 |
| THSD | THREAD SERIES DESIGNATOR | UNF 1ST END |
| Relevant Components for NSN - 4820-00-529-4181, 4820005294181 | ||||
| 4820-01-560-5759 (4820015605759) | 4820-01-298-9351 (4820012989351) | 4820-01-545-4087 (4820015454087) | 4810-01-325-4666 (4810013254666) | |
| 4820-01-374-3466 (4820013743466) | 4810-01-453-8173 (4810014538173) | 4810-01-547-8647 (4810015478647) | 4820-01-453-6024 (4820014536024) | |
| 4820-01-510-0543 (4820015100543) | 4810-01-606-7570 (4810016067570) | 4820-01-071-1428 (4820010711428) | 4820-01-232-8464 (4820012328464) | |
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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