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) | 2805 Gasoline Reciprocating Engines Except Aircraft and Components |
| National Item Identification Number (NIIN) | 00-511-2170 (005112170) |
| NCB Code | USA (00) |
| Manufacturer | Teledyne Industries Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| AASK | HEAD STYLE | FLAT |
| AASU | HEAD HEIGHT | 0.1340 INCHES MINIMUM AND 0.1540 INCHES MAXIMUM |
| AATE | CHAMFER ANGLE IN DEG | 45.0 |
| AAVZ | GROOVE DIAMETER | 0.2980 INCHES MINIMUM AND 0.30430 INCHES MAXIMUM |
| AAZP | CHAMFER LENGTH | 0.0100 INCHES NOMINAL |
| ABGF | GROOVE WIDTH | 0.0950 INCHES MINIMUM AND 0.1050 INCHES MAXIMUM |
| ABKV | OUTSIDE DIAMETER | 1.6900 INCHES MINIMUM AND 1.7000 INCHES MAXIMUM |
| AJFY | SEAT ANGLE IN DEG | 44.0 |
| ALYX | STEM STYLE | GROOVED |
| ALYZ | CARBON RELIEF GROOVE | NOT INCLUDED |
| ALZB | NECK RADIUS | 0.2500 INCHES NOMINAL |
| ALZD | STEM LENGTH | 3.8870 INCHES MINIMUM AND 3.9230 INCHES MAXIMUM |
| ALZE | STEM DIAMETER | 0.3412 INCHES MINIMUM AND 0.3422 INCHES MAXIMUM |
| ALZG | DISTANCE FROM GROOVE TO STEM END | 0.2295 INCHES MINIMUM AND 0.2505 INCHES MAXIMUM |
| ANNQ | MATERIAL AND LOCATION | STEEL,FED STD 66,SAE HNV4 OVERALL |
| ASXJ | METALLIC HARDNESS RATING AND LOCATION | 40.0 ROCKWELL C MINIMUM OVERALL |
| ASXJ | METALLIC HARDNESS RATING AND LOCATION | 45.0 ROCKWELL C MAXIMUM OVERALL |
| ZZZV | FSC APPLICATION DATA | GASOLINE ENGINE |
| Relevant Components for NSN - 2805-00-511-2170, 2805005112170 | ||||
| 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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