| Item Name | Piston Internal Combustion Engin |
| Federal Supply Group (FSG) | Engines Turbines and Components |
| Federal Supply Class (FSC) | 2815 Diesel Engines and Components |
| National Item Identification Number (NIIN) | 00-554-6391 (005546391) |
| NCB Code | USA (00) |
| Manufacturer | Brinkley Technology Group Llc, Hercules Engine Co Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| AASK | HEAD STYLE | FLAT |
| ABKW | OVERALL HEIGHT | 4.033 INCHES NOMINAL |
| ABMZ | DIAMETER | 3.625 INCHES NOMINAL |
| ACXM | OIL PASSAGE TYPE | HOLE |
| ACXU | PINHOLE DIAMETER | 1.1240 INCHES MINIMUM AND 1.1250 INCHES MAXIMUM |
| AGYE | SURFACE FINISH | FINISHED |
| AXFR | FINISHED SIZE DESIGNATION | STANDARD |
| AXFT | SKIRT TYPE | SOLID |
| AXFX | SKIRT BOTTOM CUTAWAY FEATURE | NOT INCLUDED |
| AXFZ | RING GROOVE QUANTITY | 5 |
| AXGB | RING GROOVE WIDTH | 0.1250 INCHES NOMINAL 1ST RING |
| AXGB | RING GROOVE WIDTH | 0.1270 INCHES MINIMUM AND 0.1280 INCHES MAXIMUM 2ND RING |
| AXGC | GROOVE TAPER ANGLE | 15 DEGREE INCLUDE ANGLE |
| AXGD | RING GROOVE DIAMETER | 3.211 INCHES MINIMUM 1ST RING |
| AXGD | RING GROOVE DIAMETER | 3.213 INCHES MINIMUM 3RD RING |
| AXGD | RING GROOVE DIAMETER | 3.213 INCHES MINIMUM 5TH RING |
| AXGD | RING GROOVE DIAMETER | 3.213 INCHES MINIMUM 7TH RING |
| AXGD | RING GROOVE DIAMETER | 3.221 INCHES MAXIMUM 2ND RING |
| AXGD | RING GROOVE DIAMETER | 3.223 INCHES MAXIMUM 6TH RING |
| AXGD | RING GROOVE DIAMETER | 3.223 INCHES MAXIMUM 8TH RING |
| AXGD | RING GROOVE DIAMETER | 3.263 INCHES MAXIMUM 4TH RING |
| AXGE | RING GROOVE POSITION BELOW PISTON PIN | NUMBER 1,NUMBER 2,NUMBER 3,NUMBER 4,AND NUMBER 5 ALL RINGS |
| AXPH | OIL GROOVE | NOT INCLUDED |
| AXPK | DISTANCE FROM PIN HOLE CENTER TO EXTREME TOP | 2.531 INCHES MINIMUM AND 2.533 INCHES MAXIMUM |
| AXPL | PIN HOLE BUSHING | NOT INCLUDED |
| AXPM | DISTANCE BETWEEN PIN BOSSES | 1.250 INCHES NOMINAL |
| AXPN | RETAINING RING GROOVE | INCLUDED |
| AXPP | PIN | INCLUDED |
| AXPQ | PIN TYPE FOR WHICH DESIGNED | FLOATING |
| AXPR | RING | NOT INCLUDED |
| BQBL | CARBON GROOVE | NOT INCLUDED |
| MATT | MATERIAL | ALUMINUM |
| SFTT | SURFACE TREATMENT | TIN |
| WGHT | WEIGHT | 27.0 OUNCES |
| ZZZV | FSC APPLICATION DATA | ENGINE,DIESEL |
| Components Related to NSN - 2815-00-554-6391, 2815005546391 | ||||
| 2805-00-507-3292 (2805005073292) | 2840-01-454-2997 (2840014542997) | 2835-00-873-3811 (2835008733811) | 2815-01-342-5910 (2815013425910) | |
| 2815-01-240-3064 (2815012403064) | 2815-01-199-0446 (2815011990446) | 2820-00-388-1066 (2820003881066) | 2840-01-179-8314 (2840011798314) | |
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