| 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) | 00-097-2521 (000972521) |
| NCB Code | USA (00) |
| Manufacturer | Brinkley Technology Group Llc, Hercules Engine Co Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| AASK | HEAD STYLE | FLAT |
| AASU | HEAD HEIGHT | 0.2500 INCHES MINIMUM AND 0.2650 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 | 2.7450 INCHES MINIMUM AND 2.7550 INCHES MAXIMUM |
| ADNA | MINOR OUTSIDE DIAMETER | 0.3380 INCHES MINIMUM AND 0.3420 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 | 0.6200 INCHES NOMINAL |
| ALZD | STEM LENGTH | 6.3660 INCHES MINIMUM AND 6.4050 INCHES MAXIMUM |
| ALZE | STEM DIAMETER | 0.4970 INCHES MINIMUM AND 0.4980 INCHES MAXIMUM |
| ALZF | DISTANCE FROM MINOR DIAMETER TO STEM END | 0.3240 INCHES MINIMUM AND 0.3280 INCHES MAXIMUM |
| ANNQ | MATERIAL AND LOCATION | STEEL,FED STD 66,SAE EV4 HEAD |
| ANNQ | MATERIAL AND LOCATION | STEEL,FED STD 66,SAE HNV3 STEM |
| ASXJ | METALLIC HARDNESS RATING AND LOCATION | 30.0 ROCKWELL C MINIMUM HEAD |
| ASXJ | METALLIC HARDNESS RATING AND LOCATION | 30.0 ROCKWELL C MINIMUM STEM |
| ASXJ | METALLIC HARDNESS RATING AND LOCATION | 40.0 ROCKWELL C MAXIMUM HEAD ERR-100 |
| ASXJ | METALLIC HARDNESS RATING AND LOCATION | 40.0 ROCKWELL C MAXIMUM STEM ERR-100 |
| ASXJ | METALLIC HARDNESS RATING AND LOCATION | 50.0 ROCKWELL C MINIMUM TIP |
| ZZZV | FSC APPLICATION DATA | DIESEL ENGINE |
| Components Related to NSN - 2815-00-097-2521, 2815000972521 | ||||
| 2825-00-036-3205 (2825000363205) | 2835-00-058-6979 (2835000586979) | 2840-01-708-1712 (2840017081712) | 2825-01-244-0776 (2825012440776) | |
| 2840-01-013-9126 (2840010139126) | 2815-00-390-2732 (2815003902732) | 2815-01-389-8982 (2815013898982) | 2835-00-929-0221 (2835009290221) | |
| 2805-01-661-4925 (2805016614925) | 2825-00-376-7522 (2825003767522) | 2840-01-344-3335 (2840013443335) | 2840-00-396-5425 (2840003965425) | |
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