| 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 |
| Components Related to NSN - 3110-01-044-5148, 3110010445148 | ||||
| 3120-01-194-7131 (3120011947131) | 3120-01-332-7390 (3120013327390) | 3120-01-460-1742 (3120014601742) | 3120-01-275-1573 (3120012751573) | |
| 3120-00-497-4930 (3120004974930) | 3120-01-376-4189 (3120013764189) | 3110-01-073-4660 (3110010734660) | 3120-00-301-2992 (3120003012992) | |
| 3110-00-962-2268 (3110009622268) | 3120-01-441-0643 (3120014410643) | 3110-01-086-6159 (3110010866159) | 3110-01-278-8330 (3110012788330) | |
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