| Item Name | Seat Valve |
| Federal Supply Group (FSG) | Valves |
| Federal Supply Class (FSC) | 4820 Valves Nonpowered |
| National Item Identification Number (NIIN) | 01-469-7578 (014697578) |
| NCB Code | USA (01) |
| Manufacturer | Lawler Manufacturing Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3A SINGLE THREADED PORTION |
| AASA | ERR DEFAULT | 0.093 INCHES NOMINAL SINGLE THREADED PORTION |
| ABKK | FLANGE DIAMETER | 1.500 INCHES NOMINAL |
| ADAS | BODY INSIDE DIAMETER | 0.937 INCHES MINIMUM AND 0.938 INCHES MAXIMUM |
| AGAV | END ITEM IDENTIFICATION | W/S NIMITZ CLASS CVN |
| AJFZ | SEAT RADIUS | 0.625 INCHES NOMINAL |
| AJRF | FLANGE SEAT TO DISK END HEIGHT | 0.375 INCHES NOMINAL |
| AJRM | UNDER FLANGE HEIGHT | 0.093 INCHES NOMINAL |
| CQJX | NOMINAL THREAD SIZE | 1.250 INCHES SINGLE THREADED PORTION |
| CQKM | SEATING SURFACE SHAPE | RADIAL |
| FEAT | SPECIAL FEATURES | NHA VALVE TEMP RELEASE |
| MATT | MATERIAL | COPPER ALLOY 464 SEAT |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-B-639 FED STD SINGLE MATERIAL RESPONSE SEAT |
| STYL | STYLE DESIGNATOR | THREADED FLANGED |
| THSD | THREAD SERIES DESIGNATOR | UNEF SINGLE THREADED PORTION |
| ZZZK | SPECIFICATION/STANDARD DATA | 75545-QQ-B639 GOVERNMENT STANDARD |
| Components Related to NSN - 4820-01-469-7578, 4820014697578 | ||||
| 4820-01-279-1339 (4820012791339) | 4820-01-250-8611 (4820012508611) | 4810-01-039-5970 (4810010395970) | 4820-01-284-4289 (4820012844289) | |
| 4820-01-671-6098 (4820016716098) | 4820-00-287-2199 (4820002872199) | 4820-01-277-6509 (4820012776509) | 4820-01-178-7551 (4820011787551) | |
| 4820-01-064-2440 (4820010642440) | 4820-00-391-3785 (4820003913785) | 4820-00-066-2358 (4820000662358) | 4820-01-197-6798 (4820011976798) | |
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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