| 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) | 00-392-3275 (003923275) |
| NCB Code | USA (00) |
| Manufacturer | Caterpillar Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| AASK | HEAD STYLE | FLAT |
| ABKW | OVERALL HEIGHT | 3.125 INCHES NOMINAL |
| ABMZ | DIAMETER | 2.750 INCHES NOMINAL |
| ACXM | OIL PASSAGE TYPE | HOLE |
| ACXU | PINHOLE DIAMETER | 0.7500 INCHES NOMINAL |
| AGYE | SURFACE FINISH | FINISHED |
| AXFR | FINISHED SIZE DESIGNATION | STANDARD |
| AXFT | SKIRT TYPE | SOLID |
| AXFX | SKIRT BOTTOM CUTAWAY FEATURE | NOT INCLUDED |
| AXFZ | RING GROOVE QUANTITY | 4 |
| AXGB | RING GROOVE WIDTH | 0.1240 INCHES NOMINAL 2ND RING |
| AXGB | RING GROOVE WIDTH | 0.1240 INCHES NOMINAL AND 0.1240 INCHES NOMINAL 1ST RING0.1240 INCHES NOMINAL AND 0.1850 INCHES NOMINAL AND 0.1850 INCHES NOMINAL |
| AXGB | RING GROOVE WIDTH | 0.1850 INCHES NOMINAL 3RD RING |
| AXGB | RING GROOVE WIDTH | 0.1850 INCHES NOMINAL 4TH RING |
| AXGD | RING GROOVE DIAMETER | 2.425 INCHES NOMINAL 1ST RING |
| AXGD | RING GROOVE DIAMETER | 2.425 INCHES NOMINAL 2ND RING |
| AXGD | RING GROOVE DIAMETER | 2.425 INCHES NOMINAL 3RD RING |
| AXGD | RING GROOVE DIAMETER | 2.425 INCHES NOMINAL 4TH RING |
| AXGE | RING GROOVE POSITION BELOW PISTON PIN | NUMBER 1,NUMBER 2,ANDNUMBER 3,NUMBER 4 ALL RINGS |
| AXPH | OIL GROOVE | NOT INCLUDED |
| AXPK | DISTANCE FROM PIN HOLE CENTER TO EXTREME TOP | 1.688 INCHES NOMINAL |
| AXPL | PIN HOLE BUSHING | NOT INCLUDED |
| AXPM | DISTANCE BETWEEN PIN BOSSES | 1.270 INCHES NOMINAL |
| AXPN | RETAINING RING GROOVE | INCLUDED |
| AXPP | PIN | NOT INCLUDED |
| AXPQ | PIN TYPE FOR WHICH DESIGNED | FLOATING |
| AXPR | RING | NOT INCLUDED |
| BQBL | CARBON GROOVE | NOT INCLUDED |
| MATT | MATERIAL | ALUMINUM ALLOY |
| WGHT | WEIGHT | 9.5 OUNCES |
| Relevant Components for NSN - 2815-00-392-3275, 2815003923275 | ||||
| 2805-00-371-7568 (2805003717568) | 2835-00-626-9669 (2835006269669) | 2840-00-939-3493 (2840009393493) | 2840-01-321-1442 (2840013211442) | |
| 2825-00-309-1763 (2825003091763) | 2835-00-682-5353 (2835006825353) | 2815-00-139-3970 (2815001393970) | 2840-00-866-1571 (2840008661571) | |
| 2840-01-674-1631 (2840016741631) | 2840-01-310-6208 (2840013106208) | 2815-01-690-0888 (2815016900888) | 2835-01-177-9984 (2835011779984) | |
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