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) | 2815 Diesel Engines and Components |
| National Item Identification Number (NIIN) | 00-274-3423 (002743423) |
| NCB Code | USA (00) |
| Manufacturer | Teledyne Continental Motors Inc, Military Specifications, Cecom Lr Center |
| MRC | Criteria | Characteristic |
|---|---|---|
| AASK | HEAD STYLE | FLAT |
| AASU | HEAD HEIGHT | 0.1561 INCHES NOMINAL |
| AATE | CHAMFER ANGLE IN DEG | 45.0 |
| AAZP | CHAMFER LENGTH | 0.0156 INCHES NOMINAL |
| ABKV | OUTSIDE DIAMETER | 1.8550 INCHES MINIMUM AND 1.8650 INCHES MAXIMUM |
| AJFY | SEAT ANGLE IN DEG | 44.0 |
| ALYZ | CARBON RELIEF GROOVE | NOT INCLUDED |
| ALZB | NECK RADIUS | 0.3750 INCHES NOMINAL |
| ALZD | STEM LENGTH | 6.9310 INCHES MINIMUM AND 6.9560 INCHES MAXIMUM |
| ALZE | STEM DIAMETER | 0.4344 INCHES MINIMUM AND 0.4352 INCHES MAXIMUM |
| ALZH | DISTANCE FROM FIRST GROOVE TO STEM END | 0.3590 INCHES NOMINAL |
| ALZJ | DISTANCE FROM SECOND GROOVE TO STEM END | 0.6710 INCHES MINIMUM AND 0.6910 INCHES MAXIMUM |
| ALZK | DISTANCE FROM THIRD GROOVE TO STEM END | 0.8750 INCHES NOMINAL |
| ALZL | FIRST GROOVE DIAMETER | 0.4040 INCHES MINIMUM AND 0.4080 INCHES MAXIMUM |
| ALZN | SECOND GROOVE DIAMETER | 0.4040 INCHES MINIMUM AND 0.4080 INCHES MAXIMUM |
| ALZP | THIRD GROOVE DIAMETER | 0.4040 INCHES MINIMUM AND 0.4080 INCHES MAXIMUM |
| ALZQ | FIRST GROOVE WIDTH | 0.1320 INCHES MINIMUM AND 0.1420 INCHES MAXIMUM |
| ALZR | SECOND GROOVE WIDTH | 0.1320 INCHES MINIMUM AND 0.1420 NOMINAL CENTIMETERS |
| ALZS | THIRD GROOVE WIDTH | 0.0300 INCHES MINIMUM AND 0.0400 INCHES MAXIMUM |
| ANNQ | MATERIAL AND LOCATION | STEEL,FED STD 66,AISI/SAE 3140 OVERALL |
| ASXJ | METALLIC HARDNESS RATING AND LOCATION | 37.0 ROCKWELL C MINIMUM TIP ERR-100 |
| ASXJ | METALLIC HARDNESS RATING AND LOCATION | 44.0 ROCKWELL C MAXIMUM TIP ERR-100 |
| ZZZV | FSC APPLICATION DATA | DIESEL ENGINE |
| ZZZW | DEPARTURE FROM CITED DOCUMENT | MILE11276,PARAGRAPH 3.8.3VALVES |
| Relevant Components for NSN - 2815-00-274-3423, 2815002743423 | ||||
| 2840-01-358-6667 (2840013586667) | 2825-00-059-6804 (2825000596804) | 2840-01-536-5084 (2840015365084) | 2825-00-218-6025 (2825002186025) | |
| 2835-00-070-3789 (2835000703789) | 2815-01-513-0449 (2815015130449) | 2815-00-097-1842 (2815000971842) | 2840-00-406-8327 (2840004068327) | |
| 2840-01-489-1389 (2840014891389) | 2825-00-524-0790 (2825005240790) | 2825-00-271-9631 (2825002719631) | 2835-01-078-2054 (2835010782054) | |
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