AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Guide Valve Stem |
| Federal Supply Group (FSG) | Engines Turbines and Components |
| Federal Supply Class (FSC) | 2815 Diesel Engines and Components |
| National Item Identification Number (NIIN) | 00-798-3532 (007983532) |
| NCB Code | USA (00) |
| Manufacturer | Napco International Llc |
| MRC | Criteria | Characteristic |
|---|---|---|
| ABHP | OVERALL LENGTH | 4.250 INCHES NOMINAL |
| ABXV | BORE DIAMETER | 0.5000 INCHES NOMINAL |
| BQDC | BORE COUNTERSINK | NOT INCLUDED |
| BQSF | BORE COUNTERBORE | INCLUDED |
| BQSN | AA END CHAMFER ANGLE IN DEG | 45.0 |
| BQSL | BB END CHAMFER ANGLE IN DEG | 45.0 |
| BQSM | AA END CHAMFER LENGTH | 0.031 INCHES NOMINAL |
| MATT | MATERIAL | IRON CAST |
| AAWY | COUNTERBORE DIAMETER | 0.510 INCHES MINIMUM AND 0.520 INCHES MAXIMUM |
| AAWZ | COUNTERBORE DEPTH | 0.469 INCHES NOMINAL |
| ABKV | OUTSIDE DIAMETER | 1.225 INCHES MINIMUM AND 1.230 INCHES MAXIMUM |
| AETC | METALLIC HARDNESS RATING | 27.0 MINIMUM ROCKWELL C AND 37.0 MAXIMUM ROCKWELL C |
| BDYS | COUNTERBORE LOCATION | AA END |
| BQSH | AA END DIAMETER | 0.870 INCHES MINIMUM AND 0.873 INCHES MAXIMUM |
| BQSJ | BB END SHANK DIAMETER | 0.808 INCHES MINIMUM AND 0.814 INCHES MAXIMUM |
| BQSK | BB END CHAMFER LENGTH | 0.125 INCHES NOMINAL |
| Relevant Components for NSN - 2815-00-798-3532, 2815007983532 | ||||
| 2805-01-240-6126 (2805012406126) | 2805-00-262-7518 (2805002627518) | 2815-01-248-8775 (2815012488775) | 2840-01-596-5492 (2840015965492) | |
| 2805-01-066-5405 (2805010665405) | 2840-01-617-3491 (2840016173491) | 2815-01-127-3597 (2815011273597) | 2805-01-066-4028 (2805010664028) | |
| 2825-00-025-9691 (2825000259691) | 2825-00-992-0632 (2825009920632) | 2815-00-361-9922 (2815003619922) | 2840-01-653-5046 (2840016535046) | |
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