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) | 00-239-0205 (002390205) |
| NCB Code | USA (00) |
| Manufacturer | Unison Industries Llc, Honeywell International Inc, Honeywell Aerospace |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAJD | THREAD CLASS | 3A SINGLE THREADED PORTION |
| AASA | THREAD LENGTH | 0.215 INCHES NOMINAL SINGLE THREADED PORTION |
| ABKK | FLANGE DIAMETER | 0.625 INCHES NOMINAL |
| AJRF | FLANGE SEAT TO DISK END HEIGHT | 0.110 INCHES NOMINAL |
| AJRM | UNDER FLANGE HEIGHT | 0.610 INCHES NOMINAL |
| AJSG | SEAT ANGLE IN DEG | 30.000 NOMINAL |
| CQJX | NOMINAL THREAD SIZE | 0.437 INCHES SINGLE THREADED PORTION |
| CQKM | SEATING SURFACE SHAPE | ANGULAR |
| CQKW | BODY STEPPED INSIDE DIAMETER | 0.090 INCHES NOMINAL SECOND STEP |
| CQKW | BODY STEPPED INSIDE DIAMETER | 0.190 INCHES NOMINAL THIRD STEP |
| CQKW | BODY STEPPED INSIDE DIAMETER | 0.240 INCHES NOMINAL FIRST STEP |
| MATT | MATERIAL | STEEL CORROSION RESISTING OVERALL |
| STYL | STYLE DESIGNATOR | THREADED FLANGED |
| THSD | THREAD SERIES DESIGNATOR | UNJF SINGLE THREADED PORTION |
| Relevant Components for NSN - 4820-00-239-0205, 4820002390205 | ||||
| 4820-01-573-8320 (4820015738320) | 4820-00-467-8973 (4820004678973) | 4820-01-386-0694 (4820013860694) | 4820-00-757-2955 (4820007572955) | |
| 4820-01-182-4540 (4820011824540) | 4810-00-405-7557 (4810004057557) | 4810-01-714-4038 (4810017144038) | 4820-00-289-3941 (4820002893941) | |
| 4810-01-498-2634 (4810014982634) | 4820-01-153-1851 (4820011531851) | 4820-01-232-8015 (4820012328015) | 4820-01-425-3725 (4820014253725) | |
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