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) | 00-938-1609 (009381609) |
| NCB Code | USA (00) |
| Manufacturer | Clow Corp, Napasco International Inc, Ertel Engineering Co, General Motors Corp, Elgin Industries Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| AASK | HEAD STYLE | FLAT |
| AASU | HEAD HEIGHT | 0.8390 INCHES MINIMUM AND 0.8490 INCHES MAXIMUM |
| AATE | CHAMFER ANGLE IN DEG | 15.7 |
| AAZP | CHAMFER LENGTH | 0.0100 INCHES NOMINAL |
| ABKV | OUTSIDE DIAMETER | 0.8390 INCHES MINIMUM AND 0.8490 INCHES MAXIMUM |
| AJFY | SEAT ANGLE IN DEG | 45.0 |
| ALYX | STEM STYLE | DOUBLE GROOVED |
| ALYZ | CARBON RELIEF GROOVE | NOT INCLUDED |
| ALZB | NECK RADIUS | 0.3440 INCHES NOMINAL |
| ALZD | STEM LENGTH | 4.7810 INCHES MINIMUM AND 4.7910 INCHES MAXIMUM |
| ALZE | STEM DIAMETER | 0.3400 INCHES NOMINAL |
| ALZH | DISTANCE FROM FIRST GROOVE TO STEM END | 0.4210 INCHES MINIMUM AND 0.4810 INCHES MAXIMUM |
| ALZJ | DISTANCE FROM SECOND GROOVE TO STEM END | 0.7660 INCHES MINIMUM AND 0.8460 INCHES MAXIMUM |
| ALZL | FIRST GROOVE DIAMETER | 0.2970 INCHES MINIMUM AND 0.3030 INCHES MAXIMUM |
| ALZN | SECOND GROOVE DIAMETER | 0.2970 INCHES MINIMUM AND 0.3030 INCHES MAXIMUM |
| ALZQ | FIRST GROOVE WIDTH | 0.0950 INCHES MINIMUM AND 0.1050 INCHES MAXIMUM |
| ALZR | SECOND GROOVE WIDTH | 0.1050 INCHES MINIMUM AND 0.1150 INCHES MAXIMUM |
| ANNQ | MATERIAL AND LOCATION | STEEL,FED STD 66,SAE EV8 OVERALL |
| ASXJ | METALLIC HARDNESS RATING AND LOCATION | 35.0 ROCKWELL C MINIMUM HEAD ERR-100 |
| ASXJ | METALLIC HARDNESS RATING AND LOCATION | 35.0 ROCKWELL C MINIMUM STEM |
| ASXJ | METALLIC HARDNESS RATING AND LOCATION | 50.0 ROCKWELL C MINIMUM TIP ERR-100 |
| ZZZV | FSC APPLICATION DATA | GASOLINE ENGINE |
| Relevant Components for NSN - 2805-00-938-1609, 2805009381609 | ||||
| 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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