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) | 00-528-6389 (005286389) |
| NCB Code | USA (00) |
| Manufacturer | General Motors Corp, Allied Products Corp |
| MRC | Criteria | Characteristic |
|---|---|---|
| AASK | HEAD STYLE | FLAT |
| AASU | HEAD HEIGHT | 0.1560 INCHES MINIMUM AND 0.1710 INCHES MAXIMUM |
| AATE | CHAMFER ANGLE IN DEG | 45.0 |
| AAZP | CHAMFER LENGTH | 0.0312 INCHES NOMINAL |
| ABGK | TAPER ANGLE IN DEG | 15.0 |
| ABKV | OUTSIDE DIAMETER | 1.4630 INCHES MINIMUM AND 1.4730 INCHES MAXIMUM |
| ADNA | MINOR OUTSIDE DIAMETER | 0.2450 INCHES MINIMUM AND 0.2490 INCHES MAXIMUM |
| AGRA | MINOR DIAMETER LENGTH | 0.1900 INCHES NOMINAL |
| AJFY | SEAT ANGLE IN DEG | 45.0 |
| ALYX | STEM STYLE | TAPERED |
| ALYZ | CARBON RELIEF GROOVE | NOT INCLUDED |
| ALZB | NECK RADIUS | 0.3100 INCHES NOMINAL |
| ALZD | STEM LENGTH | 5.5395 INCHES MINIMUM AND 5.5545 INCHES MAXIMUM |
| ALZE | STEM DIAMETER | 0.3710 INCHES MINIMUM AND 0.3720 INCHES MAXIMUM |
| ALZF | DISTANCE FROM MINOR DIAMETER TO STEM END | 0.2190 INCHES MINIMUM AND 0.2210 INCHES MAXIMUM |
| ANNQ | MATERIAL AND LOCATION | STEEL,FED STD 66,AISI/SAE 8645 STEM |
| ANNQ | MATERIAL AND LOCATION | STEEL,FED STD 66,SAE VF3 SEAT FACE |
| ANNQ | MATERIAL AND LOCATION | STEEL,QQ-S-624,COMP 8745-CANCELED HEAD |
| ASXJ | METALLIC HARDNESS RATING AND LOCATION | 50.0 ROCKWELL C MINIMUM TIP |
| ASXJ | METALLIC HARDNESS RATING AND LOCATION | 55.0 ROCKWELL C MAXIMUM TIP |
| ZZZV | FSC APPLICATION DATA | GASOLINE ENGINE |
| Relevant Components for NSN - 2805-00-528-6389, 2805005286389 | ||||
| 2815-01-550-2850 (2815015502850) | 2815-99-761-3525 (2815997613525) | 2815-01-498-1288 (2815014981288) | 2840-00-906-8973 (2840009068973) | |
| 2835-01-198-4808 (2835011984808) | 2815-01-396-5201 (2815013965201) | 2835-00-185-8498 (2835001858498) | 2840-01-114-2211 (2840011142211) | |
| 2835-00-004-2598 (2835000042598) | 2840-00-908-0586 (2840009080586) | 2840-00-780-4558 (2840007804558) | 2825-00-125-7119 (2825001257119) | |
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