| 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) | 00-393-5578 (003935578) |
| NCB Code | USA (00) |
| Manufacturer | Norfolk Naval Shipyard |
| MRC | Criteria | Characteristic |
|---|---|---|
| AASK | HEAD STYLE | FLAT |
| AASU | HEAD HEIGHT | 0.1562 INCHES NOMINAL |
| AATE | CHAMFER ANGLE IN DEG | 45.0 |
| AAVZ | GROOVE DIAMETER | 0.3437 INCHES NOMINAL |
| AAZP | CHAMFER LENGTH | 0.0312 INCHES NOMINAL |
| ABGF | GROOVE WIDTH | 0.0312 INCHES NOMINAL |
| ABGK | TAPER ANGLE IN DEG | 10.0 |
| ABKV | OUTSIDE DIAMETER | 1.5000 INCHES NOMINAL |
| ADNA | MINOR OUTSIDE DIAMETER | 0.1719 INCHES NOMINAL |
| 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 | 0.3125 INCHES NOMINAL |
| ALZD | STEM LENGTH | 6.6875 INCHES NOMINAL |
| ALZE | STEM DIAMETER | 0.3750 INCHES NOMINAL |
| ALZF | DISTANCE FROM MINOR DIAMETER TO STEM END | 0.2500 INCHES NOMINAL |
| ALZG | DISTANCE FROM GROOVE TO STEM END | 0.8125 INCHES NOMINAL |
| ANNQ | MATERIAL AND LOCATION | STEEL OVERALL |
| Components Related to NSN - 2815-00-393-5578, 2815003935578 | ||||
| 2825-00-036-3205 (2825000363205) | 2835-00-058-6979 (2835000586979) | 2840-01-708-1712 (2840017081712) | 2825-01-244-0776 (2825012440776) | |
| 2840-01-013-9126 (2840010139126) | 2815-00-390-2732 (2815003902732) | 2815-01-389-8982 (2815013898982) | 2835-00-929-0221 (2835009290221) | |
| 2805-01-661-4925 (2805016614925) | 2825-00-376-7522 (2825003767522) | 2840-01-344-3335 (2840013443335) | 2840-00-396-5425 (2840003965425) | |
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