AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Ring Bearing Inner |
| Federal Supply Group (FSG) | Bearings |
| Federal Supply Class (FSC) | 3110 Bearings Antifriction Unmounted |
| National Item Identification Number (NIIN) | 00-227-2165 (002272165) |
| NCB Code | USA (00) |
| Manufacturer | Caterpillar Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| ABMK | OVERALL WIDTH | 3.0150 INCHES MINIMUM AND 3.0200 INCHES MAXIMUM |
| ABXV | BORE DIAMETER | 3.2171 INCHES MINIMUM AND 3.2718 INCHES MAXIMUM |
| ADGA | OVERALL OUTSIDE DIAMETER | 3.8730 INCHES MINIMUM AND 3.8737 INCHES MAXIMUM |
| AGYE | SURFACE FINISH | GROUND |
| AGZD | BORE SHAPE | STRAIGHT |
| FEAT | SPECIAL FEATURES | OIL HOLE AND GROOVE IN RACE,CHAMFER ON BORE AND OD CORNERS,ID MUST BE CONCENTRIC W/OD WITHIN 0.0020 IN. TOTAL INDICATOR READING |
| MATT | MATERIAL | STEEL OVERALL |
| STYL | STYLE DESIGNATOR | SOLID INNER RACE,WITH BORE CHAMFER,JOURNAL AND NEEDLE |
| Relevant Components for NSN - 3110-00-227-2165, 3110002272165 | ||||
| 3110-00-003-9270 (3110000039270) | 3120-00-948-5325 (3120009485325) | 3120-01-281-8447 (3120012818447) | 3120-00-432-7549 (3120004327549) | |
| 3120-12-347-5626 (3120123475626) | 3120-00-190-4518 (3120001904518) | 3110-01-606-7510 (3110016067510) | 3110-01-400-6136 (3110014006136) | |
| 3110-00-100-3617 (3110001003617) | 3120-00-174-6371 (3120001746371) | 3110-01-556-1019 (3110015561019) | 3120-01-104-8486 (3120011048486) | |
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