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) | 2805 Gasoline Reciprocating Engines Except Aircraft and Components |
| National Item Identification Number (NIIN) | 00-451-4827 (004514827) |
| NCB Code | USA (00) |
| Manufacturer | Trw Limited, Spirolox Inc, Navistar Intl Corp |
| MRC | Criteria | Characteristic |
|---|---|---|
| AASK | HEAD STYLE | MUSHROOM |
| AASU | HEAD HEIGHT | 0.1560 INCHES NOMINAL |
| AATE | CHAMFER ANGLE IN DEG | 45.0 |
| AAZP | CHAMFER LENGTH | 0.0620 INCHES NOMINAL |
| ABKV | OUTSIDE DIAMETER | 1.4062 INCHES NOMINAL |
| AJFY | SEAT ANGLE IN DEG | 44.0 |
| ALYX | STEM STYLE | MULTI-GROOVED |
| ALYZ | CARBON RELIEF GROOVE | NOT INCLUDED |
| ALZB | NECK RADIUS | 0.3750 INCHES NOMINAL |
| ALZD | STEM LENGTH | 4.8281 INCHES NOMINAL |
| ALZE | STEM DIAMETER | 0.3720 INCHES NOMINAL |
| ALZH | DISTANCE FROM FIRST GROOVE TO STEM END | 0.0310 INCHES NOMINAL |
| ALZJ | DISTANCE FROM SECOND GROOVE TO STEM END | 0.1560 INCHES NOMINAL |
| ALZK | DISTANCE FROM THIRD GROOVE TO STEM END | 0.2810 INCHES NOMINAL |
| ALZL | FIRST GROOVE DIAMETER | 0.3060 INCHES NOMINAL |
| ALZN | SECOND GROOVE DIAMETER | 0.3060 INCHES NOMINAL |
| ALZP | THIRD GROOVE DIAMETER | 0.3060 INCHES NOMINAL |
| ALZQ | FIRST GROOVE WIDTH | 0.0620 INCHES NOMINAL |
| ALZR | SECOND GROOVE WIDTH | 0.0620 INCHES NOMINAL |
| ALZS | THIRD GROOVE WIDTH | 0.0620 INCHES NOMINAL |
| ANNQ | MATERIAL AND LOCATION | STEEL,CORROSION RESISTING OVERALL |
| FEAT | SPECIAL FEATURES | 4TH GROOVE 0.306 IN. DIA,0.062 IN. W,0.344 IN. DISTANCE TO END |
| Relevant Components for NSN - 2805-00-451-4827, 2805004514827 | ||||
| 2840-01-358-6667 (2840013586667) | 2825-00-059-6804 (2825000596804) | 2840-01-536-5084 (2840015365084) | 2825-00-218-6025 (2825002186025) | |
| 2835-00-070-3789 (2835000703789) | 2815-01-513-0449 (2815015130449) | 2815-00-097-1842 (2815000971842) | 2840-00-406-8327 (2840004068327) | |
| 2840-01-489-1389 (2840014891389) | 2825-00-524-0790 (2825005240790) | 2825-00-271-9631 (2825002719631) | 2835-01-078-2054 (2835010782054) | |
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