| Item Name | Seat Valve |
| Federal Supply Group (FSG) | Valves |
| Federal Supply Class (FSC) | 4820 Valves Nonpowered |
| National Item Identification Number (NIIN) | 00-036-1891 (000361891) |
| NCB Code | USA (00) |
| Manufacturer | Ashcroft Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 2A FIRST THREADED PORTION |
| AAJD | THREAD CLASS | 2A SECOND THREADED PORTION |
| AASA | THREAD LENGTH | 0.430 INCHES NOMINAL SECOND THREADED PORTION |
| AASA | THREAD LENGTH | 0.807 INCHES NOMINAL FIRST THREADED PORTION |
| ABKW | OVERALL HEIGHT | 3.325 INCHES NOMINAL |
| ADAS | BODY INSIDE DIAMETER | 2.486 INCHES NOMINAL |
| AJSG | SEAT ANGLE IN DEG | 12.000 NOMINAL |
| CMLP | THREAD QUANTITY PER INCH | 16 FIRST THREADED PORTION |
| CMLP | THREAD QUANTITY PER INCH | 16 SECOND THREADED PORTION |
| CQJX | NOMINAL THREAD SIZE | 3.125 INCHES FIRST THREADED PORTION |
| CQJX | NOMINAL THREAD SIZE | 3.687 INCHES SECOND THREADED PORTION |
| CQKM | SEATING SURFACE SHAPE | ANGULAR |
| MATT | MATERIAL | STEEL CORROSION RESISTING OVERALL |
| STYL | STYLE DESIGNATOR | DOUBLE FLANGED |
| THSD | THREAD SERIES DESIGNATOR | UN FIRST THREADED PORTION |
| THSD | THREAD SERIES DESIGNATOR | UN SECOND THREADED PORTION |
| Relevant Components for NSN - 4820-00-036-1891, 4820000361891 | ||||
| 4820-00-405-2314 (4820004052314) | 4820-01-644-7717 (4820016447717) | 4820-00-138-5801 (4820001385801) | 4820-01-478-3615 (4820014783615) | |
| 4810-01-231-9665 (4810012319665) | 4810-01-463-1795 (4810014631795) | 4820-01-270-4213 (4820012704213) | 4820-01-482-5390 (4820014825390) | |
| 4810-01-574-6488 (4810015746488) | 4820-01-375-3688 (4820013753688) | 4810-01-486-6370 (4810014866370) | 4820-01-562-8058 (4820015628058) | |
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