| 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) | 00-203-8640 (002038640) |
| NCB Code | USA (00) |
| Manufacturer | Teledyne Industries Inc, Eaton Industrial Corporation, Superior Air Products Co |
| MRC | Criteria | Characteristic |
|---|---|---|
| AASK | HEAD STYLE | CONCAVE |
| AASU | HEAD HEIGHT | 0.1620 INCHES MINIMUM AND 0.1720 INCHES MAXIMUM |
| AATE | CHAMFER ANGLE IN DEG | 45.0 |
| AAVZ | GROOVE DIAMETER | 0.3590 INCHES MINIMUM AND 0.3650 INCHES MAXIMUM |
| AAZP | CHAMFER LENGTH | 0.0300 INCHES NOMINAL |
| ABGF | GROOVE WIDTH | 0.1560 INCHES MINIMUM AND 0.1660 INCHES MAXIMUM |
| ABKV | OUTSIDE DIAMETER | 2.3070 INCHES MINIMUM AND 2.3170 INCHES MAXIMUM |
| AJFY | SEAT ANGLE IN DEG | 45.0 |
| ALYX | STEM STYLE | GROOVED |
| ALYZ | CARBON RELIEF GROOVE | NOT INCLUDED |
| ALZB | NECK RADIUS | 0.5000 INCHES NOMINAL |
| ALZD | STEM LENGTH | 4.7140 INCHES MINIMUM AND 4.7240 INCHES MAXIMUM |
| ALZE | STEM DIAMETER | 0.4330 INCHES MINIMUM AND 0.4340 INCHES MAXIMUM |
| ALZG | DISTANCE FROM GROOVE TO STEM END | 0.3200 INCHES NOMINAL |
| ANNQ | MATERIAL AND LOCATION | STEEL 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 |
| Relevant Components for NSN - 2805-00-203-8640, 2805002038640 | ||||
| 2825-00-383-6511 (2825003836511) | 2840-01-185-6427 (2840011856427) | 2840-01-455-9504 (2840014559504) | 2840-00-907-2639 (2840009072639) | |
| 2840-00-471-9713 (2840004719713) | 2825-00-097-1669 (2825000971669) | 2825-00-671-4522 (2825006714522) | 2840-01-685-6457 (2840016856457) | |
| 2815-01-286-4884 (2815012864884) | 2840-00-252-7399 (2840002527399) | 2815-01-307-6161 (2815013076161) | 2840-00-804-8920 (2840008048920) | |
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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