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) | 00-607-2981 (006072981) |
| NCB Code | USA (00) |
| Manufacturer | Eaton Corporation, Cummins Incorporated |
| MRC | Criteria | Characteristic |
|---|---|---|
| AASK | HEAD STYLE | MUSHROOM |
| AASU | HEAD HEIGHT | 0.3050 INCHES MINIMUM AND 0.3200 INCHES MAXIMUM |
| AATE | CHAMFER ANGLE IN DEG | 45.0 |
| AAZP | CHAMFER LENGTH | 0.0200 INCHES MINIMUM AND 0.0400 INCHES MAXIMUM |
| ABKV | OUTSIDE DIAMETER | 2.7450 INCHES MINIMUM AND 2.7550 INCHES MAXIMUM |
| AJFY | SEAT ANGLE IN DEG | 30.0 |
| ALYX | STEM STYLE | DOUBLE GROOVED |
| ALYZ | CARBON RELIEF GROOVE | NOT INCLUDED |
| ALZB | NECK RADIUS | 1.1150 INCHES MINIMUM AND 1.1350 INCHES MAXIMUM |
| ALZD | STEM LENGTH | 10.4750 INCHES MINIMUM AND 10.4890 INCHES MAXIMUM |
| ALZE | STEM DIAMETER | 0.7450 INCHES NOMINAL |
| ALZH | DISTANCE FROM FIRST GROOVE TO STEM END | 0.4340 INCHES MINIMUM AND 0.4400 INCHES MAXIMUM |
| ALZJ | DISTANCE FROM SECOND GROOVE TO STEM END | 0.8090 INCHES MINIMUM AND 0.8130 INCHES MAXIMUM |
| ALZL | FIRST GROOVE DIAMETER | 0.6210 INCHES MINIMUM AND 0.6260 INCHES MAXIMUM |
| ALZN | SECOND GROOVE DIAMETER | 0.6260 INCHES MINIMUM |
| ALZQ | FIRST GROOVE WIDTH | 0.1875 INCHES MINIMUM AND 0.1930 INCHES MAXIMUM |
| ALZR | SECOND GROOVE WIDTH | 0.1875 INCHES MINIMUM AND 0.1930 INCHES MAXIMUM |
| ANNQ | MATERIAL AND LOCATION | STEEL OVERALL |
| ASXJ | METALLIC HARDNESS RATING AND LOCATION | 40.0 ROCKWELL C MINIMUM TIP AND 50.0 ROCKWELL C MAXIMUM TIP |
| Relevant Components for NSN - 2815-00-607-2981, 2815006072981 | ||||
| 2810-00-215-9725 (2810002159725) | 2810-01-442-8304 (2810014428304) | 2840-00-054-1352 (2840000541352) | 2825-00-147-5817 (2825001475817) | |
| 2840-00-936-0717 (2840009360717) | 2805-01-624-8047 (2805016248047) | 2840-01-680-0148 (2840016800148) | 2815-00-963-3563 (2815009633563) | |
| 2840-00-432-3057 (2840004323057) | 2815-01-609-8784 (2815016098784) | 2835-01-033-7276 (2835010337276) | 2840-01-686-5641 (2840016865641) | |
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