| Item Name | Roller Linear Rotary Motion |
| Federal Supply Group (FSG) | Bearings |
| Federal Supply Class (FSC) | 3120 Bearings Plain Unmounted |
| National Item Identification Number (NIIN) | 00-490-1937 (004901937) |
| NCB Code | USA (00) |
| Manufacturer | Washington Scientific Industries Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| AASG | CASEHARDENING INDICATOR | NOT CASEHARDENED |
| ABKV | OUTSIDE DIAMETER | 0.499 INCHES MINIMUM AND 0.500 INCHES MAXIMUM |
| ADGE | BORE LENGTH | 0.228 INCHES NOMINAL |
| AETC | METALLIC HARDNESS RATING | 58.0 MINIMUM ROCKWELL C AND 62.0 MAXIMUM ROCKWELL C |
| AQPL | FACE WIDTH | 0.208 INCHES NOMINAL |
| ASBM | HUB DIAMETER | 0.344 INCHES NOMINAL |
| BCXD | BORE INSIDE DIAMETER | 0.249 INCHES NOMINAL |
| BQWC | CHAMFER/RADIUS OF OUTSIDE CORNER | 0.031 IN BY 30 DEG CHAMFER |
| BQWD | CHAMFER/RADIUS OF INSIDE CORNER | 0.030 IN BY 45 DEG CHAMFER |
| MATT | MATERIAL | STEEL COMP 8620 |
| STYL | STYLE DESIGNATOR | PLAIN,PROTRUDING HUBS |
| Components Related to NSN - 3120-00-490-1937, 3120004901937 | ||||
| 3120-01-288-5692 (3120012885692) | 3120-00-400-5487 (3120004005487) | 3120-00-071-5417 (3120000715417) | 3130-01-678-4047 (3130016784047) | |
| 3120-01-297-1300 (3120012971300) | 3120-00-630-4148 (3120006304148) | 3120-00-851-4483 (3120008514483) | 3120-00-051-7210 (3120000517210) | |
| 3120-00-902-4926 (3120009024926) | 3110-01-248-0730 (3110012480730) | 3120-00-940-9976 (3120009409976) | 3120-00-454-0386 (3120004540386) | |
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