| Item Name | Valve Poppet Engine |
| Federal Supply Group (FSG) | Engines Turbines and Components |
| Federal Supply Class (FSC) | 2810 Gasoline Reciprocating Engines Aircraft Prime Mover and Components |
| National Item Identification Number (NIIN) | 00-294-3046 (002943046) |
| NCB Code | USA (00) |
| Manufacturer | Pratt And Whitney Canada Inc, United Technologies Corporation |
| MRC | Criteria | Characteristic |
|---|---|---|
| AASK | HEAD STYLE | CONCAVE |
| AASU | HEAD HEIGHT | 0.2190 INCHES NOMINAL |
| AATE | CHAMFER ANGLE IN DEG | 45.0 |
| AAVZ | GROOVE DIAMETER | 0.3850 INCHES MINIMUM AND 0.3870 INCHES MAXIMUM |
| AAZP | CHAMFER LENGTH | 0.0100 INCHES MINIMUM AND 0.0300 INCHES MAXIMUM |
| ABGF | GROOVE WIDTH | 0.3740 INCHES MINIMUM AND 0.3760 INCHES MAXIMUM |
| ABKV | OUTSIDE DIAMETER | 2.4010 INCHES MINIMUM AND 2.4110 INCHES MAXIMUM |
| AJFY | SEAT ANGLE IN DEG | 45.0 |
| ALYX | STEM STYLE | GROOVED |
| ALYZ | CARBON RELIEF GROOVE | NOT INCLUDED |
| ALZB | NECK RADIUS | 0.6870 INCHES MINIMUM AND 0.7070 INCHES MAXIMUM |
| ALZD | STEM LENGTH | 5.4690 INCHES NOMINAL |
| ALZE | STEM DIAMETER | 0.4805 INCHES MINIMUM AND 0.4815 INCHES MAXIMUM |
| ALZG | DISTANCE FROM GROOVE TO STEM END | 0.1850 INCHES MINIMUM AND 0.1910 INCHES MAXIMUM |
| ANNQ | MATERIAL AND LOCATION | STEEL OVERALL |
| ASXJ | METALLIC HARDNESS RATING AND LOCATION | 40.0 ROCKWELL C MINIMUM OVERALL ERR-100 |
| ASXJ | METALLIC HARDNESS RATING AND LOCATION | 44.0 ROCKWELL C MAXIMUM OVERALL ERR-100 |
| ZZZV | FSC APPLICATION DATA | ACFT ENG R1830 |
| Relevant Components for NSN - 2810-00-294-3046, 2810002943046 | ||||
| 2825-00-372-7143 (2825003727143) | 2840-01-443-5581 (2840014435581) | 2840-00-113-6499 (2840001136499) | 2840-01-293-9520 (2840012939520) | |
| 2810-00-479-3648 (2810004793648) | 2840-01-654-4416 (2840016544416) | 2805-00-422-9367 (2805004229367) | 2840-00-536-4734 (2840005364734) | |
| 2835-01-078-2080 (2835010782080) | 2835-01-003-1386 (2835010031386) | 2815-01-176-1322 (2815011761322) | 2840-01-450-6633 (2840014506633) | |
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