| Item Name | Housing Bearing Unit |
| Federal Supply Group (FSG) | Bearings |
| Federal Supply Class (FSC) | 3130 Bearings Mounted |
| National Item Identification Number (NIIN) | 01-253-5979 (012535979) |
| NCB Code | USA (01) |
| Manufacturer | Timken Corporation, Amfs American Fleet Services |
| MRC | Criteria | Characteristic |
|---|---|---|
| ABKU | FLANGE THICKNESS | 0.656 INCHES NOMINAL |
| ABTB | MOUNTING HOLE DIAMETER | 0.516 INCHES NOMINAL |
| ABXV | BORE DIAMETER | 2.1875 INCHES NOMINAL |
| AFWD | HOUSING LENGTH | 1.469 INCHES NOMINAL |
| AFWE | HOUSING WIDTH | 4.625 INCHES NOMINAL |
| AGKL | LUBRICATION FITTING TYPE | PIPE PLUG |
| AHZC | ASSEMBLY OVERALL LENGTH | 2.125 INCHES NOMINAL |
| CWGR | LUBRICATION FITTING ANGLE FROM HORIZONTAL CENTERLINE | 45.0 DEGREES NOMINAL |
| CWJW | MOUNTING HOLE TYPE | ROUND,UNTHREADED |
| CXCX | CENTER TO CENTER DISTANCE BETWEEN MOUNTING HOLES ALONG SIDE OF A SQUARE | 3.625 INCHES NOMINAL |
| LBMA | LUBRICATION MATERIAL | GREASE |
| MATT | MATERIAL | IRON CAST OVERALL |
| STYL | STYLE DESIGNATOR | FLANGE BLOCK |
| Components Related to NSN - 3130-01-253-5979, 3130012535979 | ||||
| 3120-01-333-5309 (3120013335309) | 3110-01-494-8567 (3110014948567) | 3130-01-567-2799 (3130015672799) | 3110-01-309-9791 (3110013099791) | |
| 3120-01-709-1755 (3120017091755) | 3130-00-709-6349 (3130007096349) | 3110-01-163-5552 (3110011635552) | 3120-01-506-1079 (3120015061079) | |
| 3120-00-530-5932 (3120005305932) | 3110-01-492-6718 (3110014926718) | 3120-00-483-2043 (3120004832043) | 3120-00-118-3804 (3120001183804) | |
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