| 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) | 00-520-2421 (005202421) |
| NCB Code | USA (00) |
| Manufacturer | Eaton Corporation, Wisconsin Motors Llc |
| MRC | Criteria | Characteristic |
|---|---|---|
| AASK | HEAD STYLE | RAISED FACE |
| AASU | HEAD HEIGHT | 0.1875 INCHES MINIMUM AND 0.2025 INCHES MAXIMUM |
| AATE | CHAMFER ANGLE IN DEG | 45.0 |
| AAVZ | GROOVE DIAMETER | 0.2670 INCHES MINIMUM AND 0.2730 INCHES MAXIMUM |
| AAZP | CHAMFER LENGTH | 0.0312 INCHES NOMINAL |
| ABGF | GROOVE WIDTH | 0.0950 INCHES MINIMUM AND 0.1050 INCHES MAXIMUM |
| ABKV | OUTSIDE DIAMETER | 0.3090 INCHES MINIMUM AND 1.3700 INCHES MAXIMUM |
| AJFY | SEAT ANGLE IN DEG | 7.0 |
| ALYX | STEM STYLE | GROOVED |
| ALYZ | CARBON RELIEF GROOVE | INCLUDED |
| ALZB | NECK RADIUS | 0.2500 INCHES NOMINAL |
| ALZD | STEM LENGTH | 4.1010 INCHES NOMINAL |
| ALZE | STEM DIAMETER | 0.3080 INCHES MINIMUM AND 0.3090 INCHES MAXIMUM |
| ALZG | DISTANCE FROM GROOVE TO STEM END | 0.2400 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM |
| ANNQ | MATERIAL AND LOCATION | STEEL OVERALL |
| ASXJ | METALLIC HARDNESS RATING AND LOCATION | 28.0 ROCKWELL C MINIMUM HEAD |
| ASXJ | METALLIC HARDNESS RATING AND LOCATION | 28.0 ROCKWELL C MINIMUM SEAT FACE |
| ASXJ | METALLIC HARDNESS RATING AND LOCATION | 28.0 ROCKWELL C MINIMUM STEM ERR-100 |
| ASXJ | METALLIC HARDNESS RATING AND LOCATION | 35.0 ROCKWELL C MAXIMUM HEAD |
| ASXJ | METALLIC HARDNESS RATING AND LOCATION | 35.0 ROCKWELL C MAXIMUM SEAT FACE ERR-100 |
| ASXJ | METALLIC HARDNESS RATING AND LOCATION | 35.0 ROCKWELL C MAXIMUM STEM ERR-100 |
| ASXJ | METALLIC HARDNESS RATING AND LOCATION | 50.0 SHORE SCLEROSCOPE NOMINAL TIP ERR-100 |
| Relevant Components for NSN - 2805-00-520-2421, 2805005202421 | ||||
| 2805-01-633-1185 (2805016331185) | 2805-00-478-8246 (2805004788246) | 2840-00-019-8831 (2840000198831) | 2840-01-004-7728 (2840010047728) | |
| 2815-00-352-7741 (2815003527741) | 2840-01-664-8878 (2840016648878) | 2840-01-164-9089 (2840011649089) | 2840-00-938-3672 (2840009383672) | |
| 2840-00-613-3897 (2840006133897) | 2815-12-377-1727 (2815123771727) | 2840-00-915-9605 (2840009159605) | 2805-99-838-5411 (2805998385411) | |
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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