AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
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| Item Name | Seat Valve |
| Federal Supply Group (FSG) | Valves |
| Federal Supply Class (FSC) | 4820 Valves Nonpowered |
| National Item Identification Number (NIIN) | 00-525-2359 (005252359) |
| NCB Code | USA (00) |
| Manufacturer | Honeywell International Inc, Allied Signal Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| AASA | THREAD LENGTH | 0.710 INCHES MINIMUM AND 0.740 INCHES MAXIMUM SINGLE THREADED PORTION |
| ABKK | FLANGE DIAMETER | 0.360 INCHES MINIMUM AND 0.370 INCHES MAXIMUM |
| AJRF | FLANGE SEAT TO DISK END HEIGHT | 0.810 INCHES MINIMUM AND 0.830 INCHES MAXIMUM |
| AJRM | UNDER FLANGE HEIGHT | 0.850 INCHES MINIMUM AND 0.900 INCHES MAXIMUM |
| AJSH | SEAL ACCOMMODATION TYPE | GROOVED |
| CMLP | THREAD QUANTITY PER INCH | 56 SINGLE THREADED PORTION |
| CQJX | NOMINAL THREAD SIZE | 0.250 INCHES SINGLE THREADED PORTION |
| CRTL | CRITICALITY CODE JUSTIFICATION | ZZZV |
| MATT | MATERIAL | ALUMINUM ALLOY 2024 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/6,T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| SFTT | SURFACE TREATMENT | ANODIZE OVERALL |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| THSD | THREAD SERIES DESIGNATOR | UNS SINGLE THREADED PORTION |
| ZZZV | FSC APPLICATION DATA | REGULATOR,AIR PRESSURE,ACFT CABIN |
| Relevant Components for NSN - 4820-00-525-2359, 4820005252359 | ||||
| 4810-01-693-0546 (4810016930546) | 4810-01-224-8636 (4810012248636) | 4810-00-181-8826 (4810001818826) | 4810-00-533-2538 (4810005332538) | |
| 4820-01-319-3454 (4820013193454) | 4820-01-154-9733 (4820011549733) | 4810-01-176-9496 (4810011769496) | 4820-01-278-5449 (4820012785449) | |
| 4810-01-152-7681 (4810011527681) | 4810-00-127-2787 (4810001272787) | 4820-00-557-7800 (4820005577800) | 4810-01-469-1460 (4810014691460) | |
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