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 | Hdt Expeditionary Systems Inc, Drs Environmental Systems Inc, Davey Compressor Co |
| 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 | ||||
| 4810-00-872-2016 (4810008722016) | 4810-01-701-8537 (4810017018537) | 4820-01-147-9334 (4820011479334) | 4820-01-654-7545 (4820016547545) | |
| 4820-01-701-6726 (4820017016726) | 4820-01-310-4503 (4820013104503) | 4820-01-346-3872 (4820013463872) | 4820-01-477-2791 (4820014772791) | |
| 4810-01-665-1605 (4810016651605) | 4820-01-487-1839 (4820014871839) | 4820-01-528-2828 (4820015282828) | 4820-01-340-1265 (4820013401265) | |
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