| 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) | 00-423-7631 (004237631) |
| NCB Code | USA (00) |
| Manufacturer | Bosch Automotive Service Solutions, Spx Corporation, Agco Corp, Eaton Industrial Corporation |
| MRC | Criteria | Characteristic |
|---|---|---|
| AASK | HEAD STYLE | FLAT |
| AASU | HEAD HEIGHT | 0.1420 INCHES NOMINAL |
| AATE | CHAMFER ANGLE IN DEG | 45.0 |
| AAZP | CHAMFER LENGTH | 0.0050 INCHES NOMINAL |
| ABGK | TAPER ANGLE IN DEG | 15.0 |
| ABKV | OUTSIDE DIAMETER | 1.9045 INCHES NOMINAL |
| ADNA | MINOR OUTSIDE DIAMETER | 0.03020 INCHES NOMINAL |
| AGRA | MINOR DIAMETER LENGTH | 0.3050 INCHES NOMINAL |
| AJFY | SEAT ANGLE IN DEG | 45.0 |
| ALYX | STEM STYLE | TAPERED |
| ALYZ | CARBON RELIEF GROOVE | NOT INCLUDED |
| ALZB | NECK RADIUS | 0.6562 INCHES NOMINAL |
| ALZD | STEM LENGTH | 5.5850 INCHES NOMINAL |
| ALZE | STEM DIAMETER | 0.3720 INCHES NOMINAL |
| ALZF | DISTANCE FROM MINOR DIAMETER TO STEM END | 0.2210 INCHES NOMINAL |
| ANNQ | MATERIAL AND LOCATION | STEEL OVERALL |
| Relevant Components for NSN - 2805-00-423-7631, 2805004237631 | ||||
| 2835-00-219-2995 (2835002192995) | 2840-01-553-8583 (2840015538583) | 2810-00-321-3087 (2810003213087) | 2840-00-730-8469 (2840007308469) | |
| 2805-01-523-8375 (2805015238375) | 2840-01-588-3572 (2840015883572) | 2825-00-961-8353 (2825009618353) | 2815-00-970-8934 (2815009708934) | |
| 2815-01-341-8674 (2815013418674) | 2840-00-602-6043 (2840006026043) | 2835-01-146-3530 (2835011463530) | 2825-00-147-5712 (2825001475712) | |
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