| Item Name | Seat Valve |
| Federal Supply Group (FSG) | Valves |
| Federal Supply Class (FSC) | 4820 Valves Nonpowered |
| National Item Identification Number (NIIN) | 01-217-0017 (012170017) |
| NCB Code | USA (01) |
| Manufacturer | Electric Boat Corporation |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3A SINGLE THREADED PORTION |
| AASA | THREAD LENGTH | 0.770 INCHES NOMINAL SINGLE THREADED PORTION |
| ABKK | FLANGE DIAMETER | 4.910 INCHES NOMINAL |
| ADAS | BODY INSIDE DIAMETER | 3.505 INCHES NOMINAL |
| AJRF | FLANGE SEAT TO DISK END HEIGHT | 0.750 INCHES NOMINAL |
| AJRM | UNDER FLANGE HEIGHT | 0.770 INCHES NOMINAL |
| AJSG | SEAT ANGLE IN DEG | 30.000 NOMINAL |
| AJSH | SEAL ACCOMMODATION TYPE | RECESSED |
| CMLP | THREAD QUANTITY PER INCH | 11-1/2 SINGLE THREADED PORTION |
| CQJX | NOMINAL THREAD SIZE | 4.456 INCHES SINGLE THREADED PORTION |
| CQKM | SEATING SURFACE SHAPE | ANGULAR |
| MATT | MATERIAL | NICKEL ALLOY OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| STYL | STYLE DESIGNATOR | THREADED FLANGED |
| THSD | THREAD SERIES DESIGNATOR | UNS SINGLE THREADED PORTION |
| Relevant Components for NSN - 4820-01-217-0017, 4820012170017 | ||||
| 4820-01-695-0145 (4820016950145) | 4820-01-596-1771 (4820015961771) | 4810-01-187-3363 (4810011873363) | 4810-01-523-6894 (4810015236894) | |
| 4820-00-707-0356 (4820007070356) | 4820-01-568-0815 (4820015680815) | 4820-01-227-9365 (4820012279365) | 4820-01-104-8145 (4820011048145) | |
| 4820-01-299-5713 (4820012995713) | 4820-01-640-9566 (4820016409566) | 4810-01-346-0666 (4810013460666) | 4820-01-655-5932 (4820016555932) | |
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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