AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Seat Valve |
| Federal Supply Group (FSG) | Valves |
| Federal Supply Class (FSC) | 4820 Valves Nonpowered |
| National Item Identification Number (NIIN) | 00-504-8129 (005048129) |
| NCB Code | USA (00) |
| Manufacturer | Electric Boat Corporation |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| 26YD-801X2PC1 | electric boat corporation | seat valve | RFQ |
| 72791-21X3PC17 | electric boat corporation | seat valve | RFQ |
| 72791-21X03 | electric boat corporation | seat valve | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| ABKK | FLANGE DIAMETER | 0.750 INCHES NOMINAL |
| ADAS | BODY INSIDE DIAMETER | 0.325 INCHES NOMINAL |
| AJRF | FLANGE SEAT TO DISK END HEIGHT | 0.100 INCHES NOMINAL |
| AJRM | UNDER FLANGE HEIGHT | 0.312 INCHES NOMINAL |
| CQJX | NOMINAL THREAD SIZE | 0.625 INCHES SINGLE THREADED PORTION |
| CQKM | SEATING SURFACE SHAPE | FLAT |
| MATT | MATERIAL | STEEL OVERALL |
| SFTT | SURFACE TREATMENT | CHROMATE OVERALL |
| STYL | STYLE DESIGNATOR | THREADED FLANGED |
| THSD | THREAD SERIES DESIGNATOR | UNEF SINGLE THREADED PORTION |
| AAJD | THREAD CLASS | 2A SINGLE THREADED PORTION |
| AASA | THREAD LENGTH | 0.306 INCHES NOMINAL SINGLE THREADED PORTION |
| Relevant Components for NSN - 4820-00-504-8129, 4820005048129 | ||||
| 4820-01-248-5022 (4820012485022) | 4820-01-511-3905 (4820015113905) | 4820-00-108-8528 (4820001088528) | 4820-01-613-0942 (4820016130942) | |
| 4820-00-319-7643 (4820003197643) | 4820-01-577-0941 (4820015770941) | 4820-01-262-2542 (4820012622542) | 4820-01-607-4294 (4820016074294) | |
| 4820-01-148-9327 (4820011489327) | 4820-01-292-9537 (4820012929537) | 4820-01-230-6363 (4820012306363) | 4820-01-151-4016 (4820011514016) | |
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