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) | 01-104-5296 (011045296) |
| NCB Code | USA (01) |
| Manufacturer | General Motors Corp, Trw Limited, Bosch Automotive Service Solutions, Spx Corporation |
| MRC | Criteria | Characteristic |
|---|---|---|
| AASK | HEAD STYLE | FLAT |
| AASU | HEAD HEIGHT | 0.1920 INCHES NOMINAL |
| AATE | CHAMFER ANGLE IN DEG | 45.0 |
| AAZP | CHAMFER LENGTH | 0.0350 INCHES NOMINAL |
| ABKV | OUTSIDE DIAMETER | 1.5000 INCHES NOMINAL |
| AJFY | SEAT ANGLE IN DEG | 45.0 |
| ALYX | STEM STYLE | DOUBLE GROOVED |
| ALYZ | CARBON RELIEF GROOVE | NOT INCLUDED |
| ALZB | NECK RADIUS | 0.3130 INCHES NOMINAL |
| ALZD | STEM LENGTH | 4.7340 INCHES MINIMUM AND 4.7360 INCHES MAXIMUM |
| ALZE | STEM DIAMETER | 0.3410 INCHES NOMINAL |
| ALZH | DISTANCE FROM FIRST GROOVE TO STEM END | 0.2900 INCHES NOMINAL |
| ALZJ | DISTANCE FROM SECOND GROOVE TO STEM END | 0.5400 INCHES NOMINAL |
| ALZL | FIRST GROOVE DIAMETER | 0.3000 INCHES NOMINAL |
| ALZN | SECOND GROOVE DIAMETER | 0.3000 INCHES NOMINAL |
| ALZQ | FIRST GROOVE WIDTH | 0.1010 INCHES NOMINAL |
| ALZR | SECOND GROOVE WIDTH | 0.1010 INCHES NOMINAL |
| ANNQ | MATERIAL AND LOCATION | STEEL TIP |
| ANNQ | MATERIAL AND LOCATION | STEEL,CORROSION RESISTING HEAD |
| ANNQ | MATERIAL AND LOCATION | STEEL,CORROSION RESISTING STEM |
| FEAT | SPECIAL FEATURES | USED ON GENERAL MOTORS CORPORATION ENGINE; MDL 1979-83; SERIES 229,250 |
| Relevant Components for NSN - 2805-01-104-5296, 2805011045296 | ||||
| 2825-00-790-8901 (2825007908901) | 2825-01-010-8535 (2825010108535) | 2825-00-371-7811 (2825003717811) | 2805-01-264-5598 (2805012645598) | |
| 2840-01-375-6452 (2840013756452) | 2805-01-130-2594 (2805011302594) | 2835-01-234-6845 (2835012346845) | 2805-01-714-1073 (2805017141073) | |
| 2840-00-837-2120 (2840008372120) | 2840-01-708-1715 (2840017081715) | 2840-01-200-9553 (2840012009553) | 2805-00-710-5355 (2805007105355) | |
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