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) | 2810 Gasoline Reciprocating Engines Aircraft Prime Mover and Components |
| National Item Identification Number (NIIN) | 00-287-8372 (002878372) |
| NCB Code | USA (00) |
| Manufacturer | Bosch Automotive Service Solutions, Teledyne Industries Inc, Spx Corporation, L3 Technologies Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAGR | CROSS-SECTIONAL SHAPE STYLE | CONVEX FACE,DOUBLE SCRAPER,VENTILATED OIL CONTROL |
| ACXD | RING STYLE | CONCENTRIC |
| ACXF | RADIAL WALL THICKNESS | 0.2050 INCHES MINIMUM AND 0.2150 INCHES MAXIMUM |
| ACXJ | OVERALL WIDTH | 0.1550 INCHES NOMINAL |
| ACXL | PIN HOLE STYLE | ROUND PINHOLE AT JOINT |
| ACXU | PINHOLE DIAMETER | 0.031 INCHES NOMINAL |
| ACXZ | STANDARD BORE DIAMETER | 5.000 INCHES |
| ADTE | JOINT STYLE | VERTICAL JOINT |
| CQKZ | OIL PASSAGE TYPE AND QUANTITY | 1 HOLE BOTTOM |
| CRNR | DISTANCE FROM PIN HOLE CENTER TO EDGE | 0.077 INCHES NOMINAL |
| MATT | MATERIAL | IRON OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | AMS7310 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| ZZZV | FSC APPLICATION DATA | RECIPROCATING ENGINE,AIRCRAFT |
| Relevant Components for NSN - 2810-00-287-8372, 2810002878372 | ||||
| 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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