AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| 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) | 00-307-8821 (003078821) |
| NCB Code | USA (00) |
| Manufacturer | Dresser Industries Inc, Aqua Chem Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| AASK | HEAD STYLE | CONTOUR |
| ABKW | OVERALL HEIGHT | 4.188 INCHES NOMINAL |
| ABMZ | DIAMETER | 3.310 INCHES MINIMUM AND 3.311 INCHES MAXIMUM |
| ACXM | OIL PASSAGE TYPE | HOLE 2ND RING |
| ACXM | OIL PASSAGE TYPE | HOLE 3RD RING |
| AGYE | SURFACE FINISH | FINISHED |
| AXFR | FINISHED SIZE DESIGNATION | STANDARD |
| AXFT | SKIRT TYPE | SEMISPLIT |
| AXFX | SKIRT BOTTOM CUTAWAY FEATURE | NOT INCLUDED |
| AXFZ | RING GROOVE QUANTITY | 5 |
| AXGB | RING GROOVE WIDTH | 0.1240 INCHES NOMINAL 1ST RING |
| AXGB | RING GROOVE WIDTH | 0.2510 INCHES NOMINAL 2ND RING |
| AXGC | GROOVE TAPER ANGLE | 15 DEG MIN,15 DEG 15 MINUTES MAX ALL RINGS |
| AXGD | RING GROOVE DIAMETER | 2.925 INCHES MINIMUM AND 2.935 INCHES MAXIMUM 2ND RING |
| AXGD | RING GROOVE DIAMETER | 2.965 INCHES MINIMUM AND 2.975 INCHES MAXIMUM 1ST RING |
| AXGE | RING GROOVE POSITION BELOW PISTON PIN | NUMBER 1,NUMBER 2,NUMBER 3,NUMBER 4,AND NUMBER 5 ALL RINGS |
| AXPH | OIL GROOVE | INCLUDED |
| AXPK | DISTANCE FROM PIN HOLE CENTER TO EXTREME TOP | 2.311 INCHES MINIMUM AND 2.313 INCHES MAXIMUM |
| AXPL | PIN HOLE BUSHING | NOT INCLUDED |
| AXPN | RETAINING RING GROOVE | INCLUDED |
| AXPP | PIN | NOT INCLUDED |
| AXPQ | PIN TYPE FOR WHICH DESIGNED | LOCKING |
| AXPR | RING | INCLUDED |
| BQBL | CARBON GROOVE | NOT INCLUDED |
| MATT | MATERIAL | IRON CAST |
| WGHT | WEIGHT | 25.0 OUNCES |
| Relevant Components for NSN - 2815-00-307-8821, 2815003078821 | ||||
| 2805-01-240-6126 (2805012406126) | 2805-00-262-7518 (2805002627518) | 2815-01-248-8775 (2815012488775) | 2840-01-596-5492 (2840015965492) | |
| 2805-01-066-5405 (2805010665405) | 2840-01-617-3491 (2840016173491) | 2815-01-127-3597 (2815011273597) | 2805-01-066-4028 (2805010664028) | |
| 2825-00-025-9691 (2825000259691) | 2825-00-992-0632 (2825009920632) | 2815-00-361-9922 (2815003619922) | 2840-01-653-5046 (2840016535046) | |
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