| Item Name | Seat Bearing |
| Federal Supply Group (FSG) | Bearings |
| Federal Supply Class (FSC) | 3110 Bearings Antifriction Unmounted |
| National Item Identification Number (NIIN) | 01-044-5148 (010445148) |
| NCB Code | USA (01) |
| Manufacturer | Caterpillar Inc, Timken Aerospace Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| ABKV | OUTSIDE DIAMETER | 3.5570 INCHES NOMINAL |
| ABMK | OVERALL WIDTH | 0.1580 INCHES NOMINAL |
| ABXV | BORE DIAMETER | 2.5020 INCHES NOMINAL |
| FEAT | SPECIAL FEATURES | GROUND FINSIH; CHAMFER 0.0300 IN. MIN TO 0.0450 MAX BY 45.0 DEGREES ON OD OF ONE SIDE |
| MATT | MATERIAL | STEEL COMP E52100 OVERALL |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | 66,AISI/SAE E52100 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| STYL | STYLE DESIGNATOR | FLAT RACE SURFACE |
| Relevant Components for NSN - 3110-01-044-5148, 3110010445148 | ||||
| 3120-01-494-3241 (3120014943241) | 3110-00-307-7377 (3110003077377) | 3110-00-903-6779 (3110009036779) | 3120-00-421-7780 (3120004217780) | |
| 3120-00-887-0410 (3120008870410) | 3120-00-159-7150 (3120001597150) | 3110-01-266-4906 (3110012664906) | 3120-01-380-1647 (3120013801647) | |
| 3120-00-279-0563 (3120002790563) | 3120-01-303-2883 (3120013032883) | 3120-01-459-5160 (3120014595160) | 3130-01-622-9685 (3130016229685) | |
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