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) | 00-393-5585 (003935585) |
| NCB Code | USA (00) |
| Manufacturer | Norfolk Naval Shipyard |
| MRC | Criteria | Characteristic |
|---|---|---|
| AASK | HEAD STYLE | FLAT |
| AASU | HEAD HEIGHT | 0.1240 INCHES MINIMUM AND 0.1340 INCHES MAXIMUM |
| AATE | CHAMFER ANGLE IN DEG | 30.0 |
| AAVZ | GROOVE DIAMETER | 0.3390 INCHES MINIMUM AND 0.3550 INCHES MAXIMUM |
| AAZP | CHAMFER LENGTH | 0.0156 INCHES NOMINAL |
| ABGF | GROOVE WIDTH | 0.03125 INCHES NOMINAL |
| ABGK | TAPER ANGLE IN DEG | 30.0 |
| ABKV | OUTSIDE DIAMETER | 1.6230 INCHES MINIMUM AND 1.6270 INCHES MAXIMUM |
| ADNA | MINOR OUTSIDE DIAMETER | 0.3030 INCHES MINIMUM AND 0.3090 INCHES MAXIMUM |
| AGRA | MINOR DIAMETER LENGTH | 0.3125 INCHES NOMINAL |
| AJFY | SEAT ANGLE IN DEG | 45.0 |
| ALYX | STEM STYLE | TAPERED AND GROOVED |
| ALYZ | CARBON RELIEF GROOVE | NOT INCLUDED |
| ALZB | NECK RADIUS | 0.2500 INCHES NOMINAL |
| ALZD | STEM LENGTH | 7.6110 INCHES MINIMUM AND 7.6160 INCHES MAXIMUM |
| ALZE | STEM DIAMETER | 0.3720 INCHES MINIMUM AND 0.3725 INCHES MAXIMUM |
| ALZF | DISTANCE FROM MINOR DIAMETER TO STEM END | 0.2344 INCHES NOMINAL |
| ALZG | DISTANCE FROM GROOVE TO STEM END | 0.8125 INCHES NOMINAL |
| ANNQ | MATERIAL AND LOCATION | STEEL,FED STD 66,SAE EV1 OVERALL |
| ASXJ | METALLIC HARDNESS RATING AND LOCATION | 38.0 ROCKWELL C MINIMUM HEAD |
| ASXJ | METALLIC HARDNESS RATING AND LOCATION | 38.0 ROCKWELL C MINIMUM STEM |
| ASXJ | METALLIC HARDNESS RATING AND LOCATION | 41.0 ROCKWELL C MAXIMUM HEAD ERR-100 |
| ASXJ | METALLIC HARDNESS RATING AND LOCATION | 41.0 ROCKWELL C MAXIMUM STEM ERR-100 |
| ASXJ | METALLIC HARDNESS RATING AND LOCATION | 49.0 ROCKWELL C NOMINAL TIP |
| Relevant Components for NSN - 2815-00-393-5585, 2815003935585 | ||||
| 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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