| 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) | 01-057-6639 (010576639) |
| NCB Code | USA (01) |
| Manufacturer | Cummins Incorporated |
| MRC | Criteria | Characteristic |
|---|---|---|
| AASK | HEAD STYLE | FLAT |
| AASU | HEAD HEIGHT | 0.2656 INCHES MINIMUM AND 0.2750 INCHES MAXIMUM |
| AATE | CHAMFER ANGLE IN DEG | 45.0 |
| AAVZ | GROOVE DIAMETER | 0.4220 INCHES MINIMUM AND 0.4280 INCHES MAXIMUM |
| AAZP | CHAMFER LENGTH | 0.0100 INCHES MINIMUM AND 0.0250 INCHES MAXIMUM |
| ABGF | GROOVE WIDTH | 0.1320 INCHES MINIMUM AND 0.1420 INCHES MAXIMUM |
| ABKV | OUTSIDE DIAMETER | 2.2150 INCHES MINIMUM AND 2.2250 INCHES MAXIMUM |
| AJFY | SEAT ANGLE IN DEG | 30.0 |
| ALYX | STEM STYLE | GROOVED |
| ALYZ | CARBON RELIEF GROOVE | NOT INCLUDED |
| ALZB | NECK RADIUS | 0.7900 INCHES MINIMUM AND 0.8100 INCHES MAXIMUM |
| ALZD | STEM LENGTH | 7.2730 INCHES MINIMUM AND 7.2870 INCHES MAXIMUM |
| ALZE | STEM DIAMETER | 0.4945 INCHES MINIMUM AND 0.4955 INCHES MAXIMUM |
| ALZG | DISTANCE FROM GROOVE TO STEM END | 0.4600 INCHES NOMINAL |
| ANNQ | MATERIAL AND LOCATION | STEEL OVERALL |
| ASXJ | METALLIC HARDNESS RATING AND LOCATION | 52.0 ROCKWELL C MINIMUM TIP |
| Relevant Components for NSN - 2815-01-057-6639, 2815010576639 | ||||
| 2805-00-371-7568 (2805003717568) | 2835-00-626-9669 (2835006269669) | 2840-00-939-3493 (2840009393493) | 2840-01-321-1442 (2840013211442) | |
| 2825-00-309-1763 (2825003091763) | 2835-00-682-5353 (2835006825353) | 2815-00-139-3970 (2815001393970) | 2840-00-866-1571 (2840008661571) | |
| 2840-01-674-1631 (2840016741631) | 2840-01-310-6208 (2840013106208) | 2815-01-690-0888 (2815016900888) | 2835-01-177-9984 (2835011779984) | |
If You’re Ever Looking for NSN parts Or Have an Aircraft On Ground Situation, Don’t forget That We offer Competitive Pricing and Guaranteed On-Time Delivery.
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