AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Ring Piston |
| Federal Supply Group (FSG) | Engines Turbines and Components |
| Federal Supply Class (FSC) | 2815 Diesel Engines and Components |
| National Item Identification Number (NIIN) | 00-779-6393 (007796393) |
| NCB Code | USA (00) |
| Manufacturer | Cummins Incorporated |
| MRC | Criteria | Characteristic |
|---|---|---|
| CQKZ | OIL PASSAGE TYPE AND QUANTITY | 1 GROOVE OUTSIDE PERIPHERY |
| AAGR | CROSS-SECTIONAL SHAPE STYLE | CONVEX FACE,DOUBLE SCRAPER,VENTILATED OIL CONTROL |
| ACXD | RING STYLE | CONCENTRIC |
| ACXF | RADIAL WALL THICKNESS | 0.1350 INCHES MINIMUM AND 0.1450 INCHES MAXIMUM |
| ACXJ | OVERALL WIDTH | 0.2480 INCHES MINIMUM AND 0.2490 INCHES MAXIMUM |
| ACXZ | STANDARD BORE DIAMETER | 5.125 INCHES |
| ADTE | JOINT STYLE | VERTICAL JOINT |
| CQKZ | OIL PASSAGE TYPE AND QUANTITY | 17 SLOT HORIZONTALLY THROUGH RING |
| MATT | MATERIAL | IRON OVERALL |
| SFTT | SURFACE TREATMENT | CHROMIUM OVERALL |
| ZZZV | FSC APPLICATION DATA | DIESEL ENGINE |
| Relevant Components for NSN - 2815-00-779-6393, 2815007796393 | ||||
| 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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