# NSN 3110-01-391-8138: Cup, Tapered Roller Bearing

NSN 3110-01-391-8138 (also written 3110013918138; NIIN 01-391-8138) is a cup, tapered roller bearing in Federal Supply Class 3110, Bearings, Antifriction, Unmounted. 3 manufacturer part numbers from 2 suppliers are on record. The government has 1 open solicitation for it.

## Identification

- NSN: 3110-01-391-8138 (3110013918138)
- NIIN: 01-391-8138 (013918138)
- Item name: CUP,TAPERED ROLLER BEARING
- Federal Supply Class: [FSC 3110 Bearings, Antifriction, Unmounted](https://nsnexplorer.com/fsc/3110/)
- Federal Supply Group: [FSG 31](https://nsnexplorer.com/group/31/)
- Acquisition method suffix code: AMSC B: must be bought from the sources named on a source control or selected item drawing. (observed 2026-10-15)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| ABMK | OVERALL WIDTH | INCHES NOMINAL 1.7500 |
| ABXV | BORE DIAMETER | INCHES NOMINAL 4.5000 |
| ADGA | OVERALL OUTSIDE DIAMETER | INCHES NOMINAL 6.2982 |
| AGWU | BACKFACE CORNER RADIUS | INCHES NOMINAL 0.1300 |
| AGWV | STANDOUT WIDTH | INCHES NOMINAL 0.1875 |
| AGWW | CONE CORNER RADIUS | INCHES NOMINAL 0.1000 |
| AGWX | CONE WIDTH | INCHES NOMINAL 1.3750 |
| AGWY | CUP WIDTH | INCHES NOMINAL 1.5625 |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | CUP |
| MATT | MATERIAL | OVERALL STEEL |
| STYL | STYLE DESIGNATOR | — |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 9235611-73 | 60038 | THE TIMKEN CORPORATION | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 9235611-73 | 98747 | OGDEN AIR LOGISTICS CENTER | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| LM122912EXX*2-629 | 60038 | THE TIMKEN CORPORATION | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Open solicitations

| Solicitation | Quantity | Closes | Link |
| --- | --- | --- | --- |
| SPE4A6-27-Q-0108 | 122 | 2026-10-22 | [DIBBS](https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=3110013918138&category=nsn) |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=3110013918138&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=3110013918138
- AMSC record: https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/
- All data is public U.S. government data; every row above links to its source record where one exists.

Canonical page: https://nsnexplorer.com/nsn/3110-01-391-8138/
JSON: https://nsnexplorer.com/api/nsn/3110-01-391-8138.json