# NSN 3110-01-287-0931: Bearing, Ball, Annular

NSN 3110-01-287-0931 (also written 3110012870931; NIIN 01-287-0931) is a bearing, ball, annular in Federal Supply Class 3110, Bearings, Antifriction, Unmounted. 7 manufacturer part numbers from 5 suppliers are on record. It was last purchased in Oct 2026.

## Identification

- NSN: 3110-01-287-0931 (3110012870931)
- NIIN: 01-287-0931 (012870931)
- Item name: BEARING,BALL,ANNULAR
- 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 2026-10-10)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| ABMK | OVERALL WIDTH | INCHES NOMINAL 0.1250 |
| ABXV | BORE DIAMETER | INCHES NOMINAL 0.1875 |
| AEPR | FLANGE OUTSIDE DIAMETER | INCHES NOMINAL 0.3590 |
| AGFF | FLANGE WIDTH | INCHES NOMINAL 0.0230 |
| AGVV | OUTER RING OUTSIDE DIAMETER | INCHES NOMINAL 0.3125 |
| AGYE | SURFACE FINISH | GROUND |
| AGYF | RETAINER FABRICATION METHOD | PRESSED |
| AGYK | SHIELD QUANTITY | 2 |
| AGZA | ALIGNMENT TYPE | RIGID |
| AGZC | LOAD DIRECTION | RADIAL |
| AGZD | BORE SHAPE | STRAIGHT |
| AKVV | INTERNAL CLEARANCE | INCHES MINIMUM RADIAL 0.0001 AND INCHES MAXIMUM RADIAL 0.0008 |
| CTFZ | STANDARD TOLERANCE DESIGNATION | ABEC NO.3 |
| LBMA | LUBRICATION MATERIAL | GREASE |
| LMDC | LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATION | MIL SPEC SINGLE MATERIAL RESPONSE -IL-G-81322 |
| MATT | MATERIAL | BALL STEEL COMP 440C |
| MATT | MATERIAL | OUTER RING STEEL COMP 440C |
| MATT | MATERIAL | RETAINER STEEL CORROSION RESISTING |
| MATT | MATERIAL | INNER RING STEEL COMP 440C |
| PRPY | PROPRIETARY CHARACTERISTICS | PACS |
| STYL | STYLE DESIGNATOR | — |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 110763-1 | 17472 | EATON AEROSPACE LLC DBA EATON INOAC DIV FUEL & MOTION CONTROL SYSTEMS DIVISION | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 110763-1 | 40920 | MPB CORP DIV TIMKEN SUPER PRECISION | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 110763-1 | 50294 | NEW HAMPSHIRE BALL BEARINGS INC DIV PRECISION DIVISION | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 110763-1 | 99145 | EATON AEROSPACE LLC ED AND C WEST DIV | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| S5632FCHH3P18/LY196 | 40920 | MPB CORP DIV TIMKEN SUPER PRECISION | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| SFR1563PPK18/287 | 83086 | NEW HAMPSHIRE BALL BEARINGS INC DIV HITECH DIVISION | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| SSRIF5632/ZZA3P18/LY48 | 50294 | NEW HAMPSHIRE BALL BEARINGS INC DIV PRECISION DIVISION | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Price history

Newest first.

| Date | Unit price | Quantity | Supplier | Agency | Source |
| --- | --- | --- | --- | --- | --- |
| 2026-10-08 | $53.00 | 104 | C U ENTERPRISES LTD | — | [record](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=3110012870931) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-10-08 | [SPE4A627P1666](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=3110012870931) | BEARING, BALL, ANNULAR | C U ENTERPRISES LTD | $5,512.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=3110012870931&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=3110012870931
- AMSC record: https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/
- USAspending contract actions (each award above links to its record)
- 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/3110-01-287-0931/
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