AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Valve,Poppet,Engine |
| Federal Supply Group (FSG) | Engines Turbines and Components |
| Federal Supply Class (FSC) | 2815 Diesel Engines and Components |
| National Item Identification Number (NIIN) | 00-393-5578 (003935578) |
| NCB Code | USA (00) |
| Manufacturer | Norfolk Naval Shipyard |
| MRC | Criteria | Characteristic |
|---|---|---|
| AASK | HEAD STYLE | FLAT |
| AASU | HEAD HEIGHT | 0.1562 INCHES NOMINAL |
| AATE | CHAMFER ANGLE IN DEG | 45.0 |
| AAVZ | GROOVE DIAMETER | 0.3437 INCHES NOMINAL |
| AAZP | CHAMFER LENGTH | 0.0312 INCHES NOMINAL |
| ABGF | GROOVE WIDTH | 0.0312 INCHES NOMINAL |
| ABGK | TAPER ANGLE IN DEG | 10.0 |
| ABKV | OUTSIDE DIAMETER | 1.5000 INCHES NOMINAL |
| ADNA | MINOR OUTSIDE DIAMETER | 0.1719 INCHES NOMINAL |
| AGRA | MINOR DIAMETER LENGTH | 0.3125 INCHES NOMINAL |
| AJFY | SEAT ANGLE IN DEG | 45.0 |
| ALYX | STEM STYLE | TAPERED AND GROOVED |
| ALYZ | CARBON RELIEF GROOVE | NOT INCLUDED |
| ALZB | NECK RADIUS | 0.3125 INCHES NOMINAL |
| ALZD | STEM LENGTH | 6.6875 INCHES NOMINAL |
| ALZE | STEM DIAMETER | 0.3750 INCHES NOMINAL |
| ALZF | DISTANCE FROM MINOR DIAMETER TO STEM END | 0.2500 INCHES NOMINAL |
| ALZG | DISTANCE FROM GROOVE TO STEM END | 0.8125 INCHES NOMINAL |
| ANNQ | MATERIAL AND LOCATION | STEEL OVERALL |
| Relevant Components for NSN - 2815-00-393-5578, 2815003935578 | ||||
| 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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