AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Seatvalve |
| Federal Supply Group (FSG) | Valves |
| Federal Supply Class (FSC) | 4820 Valves Nonpowered |
| National Item Identification Number (NIIN) | 00-873-3851 (008733851) |
| NCB Code | USA (00) |
| Manufacturer | Drs Environmental Systems Inc, Davey Compressor Co, Hdt Expeditionary Systems Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 2A FIRST THREADED PORTION |
| ADAS | BODY INSIDE DIAMETER | 0.174 INCHES NOMINAL |
| AJRM | UNDER FLANGE HEIGHT | 0.650 INCHES NOMINAL |
| CQJX | NOMINAL THREAD SIZE | 0.312 INCHES FIRST THREADED PORTION |
| CQJX | NOMINAL THREAD SIZE | 0.375 INCHES SECOND THREADED PORTION |
| CQKM | SEATING SURFACE SHAPE | FLAT |
| MATT | MATERIAL | COPPER ALLOY OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNC FIRST THREADED PORTION |
| AASA | THREAD LENGTH | 0.230 INCHES MINIMUM SECOND THREADED PORTION |
| AASA | THREAD LENGTH | 0.250 INCHES NOMINAL FIRST THREADED PORTION |
| ABKW | OVERALL HEIGHT | 0.910 INCHES NOMINAL |
| ADAR | BODY OUTSIDE DIAMETER | 0.375 INCHES NOMINAL |
| AJSH | SEAL ACCOMMODATION TYPE | SLEEVE |
| THSD | THREAD SERIES DESIGNATOR | NPT SECOND THREADED PORTION |
| Relevant Components for NSN - 4820-00-873-3851, 4820008733851 | ||||
| 4820-01-355-0373 (4820013550373) | 4820-01-596-5537 (4820015965537) | 4820-01-428-4292 (4820014284292) | 4820-01-572-3577 (4820015723577) | |
| 4820-01-535-9663 (4820015359663) | 4820-01-278-9880 (4820012789880) | 4820-01-412-2051 (4820014122051) | 4820-12-365-1402 (4820123651402) | |
| 4810-12-380-1387 (4810123801387) | 4820-01-492-3226 (4820014923226) | 4820-01-299-0262 (4820012990262) | 4820-01-263-0040 (4820012630040) | |
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