# NSN 3110-01-210-3956: Bearing, Ball, Annular

NSN 3110-01-210-3956 (also written 3110012103956; NIIN 01-210-3956) is a bearing, ball, annular in Federal Supply Class 3110, Bearings, Antifriction, Unmounted. 2 manufacturer part numbers from 2 suppliers are on record. It was last purchased in Sep 2026.

## Identification

- NSN: 3110-01-210-3956 (3110012103956)
- NIIN: 01-210-3956 (012103956)
- 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 D: the data needed to compete the part is unavailable or cannot be obtained economically. (observed 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| ABMK | OVERALL WIDTH | INCHES NOMINAL 0.1560 |
| ABXV | BORE DIAMETER | INCHES NOMINAL 1.2500 |
| ADGA | OVERALL OUTSIDE DIAMETER | INCHES NOMINAL 1.5000 |
| AGYE | SURFACE FINISH | GROUND |
| AGYF | RETAINER FABRICATION METHOD | MACHINED |
| AGZC | LOAD DIRECTION | RADIAL |
| AGZD | BORE SHAPE | STRAIGHT |
| AGZH | INTERNAL FIT-UP DESIGNATION | STANDARD |
| CTFZ | STANDARD TOLERANCE DESIGNATION | ABEC NO. 5T |
| LBMA | LUBRICATION MATERIAL | GREASE |
| LMDC | LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATION | MIL SPEC SINGLE MATERIAL RESPONSE -IL-G-81322 |
| MATT | MATERIAL | INNER RING STEEL COMP 440C |
| MATT | MATERIAL | RETAINER PLASTIC PHENOLIC |
| MATT | MATERIAL | BALL STEEL COMP 440C |
| MATT | MATERIAL | OUTER RING STEEL COMP 440C |
| STYL | STYLE DESIGNATOR | — |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 3TKR20-24ULY231 | 78118 | MPB CORPORATION DBA MPB CORP | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| S2024MC5P38LY231 | 40920 | MPB CORP DIV TIMKEN SUPER PRECISION | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-23 | [SPE4A622D5375/SPE4A626F480B](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=3110012103956) | BEARING, BALL, ANNULAR | MPB CORP DIV TIMKEN SUPER PRECISION | $2,835.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=3110012103956&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=3110012103956
- 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/3110-01-210-3956/
JSON: https://nsnexplorer.com/api/nsn/3110-01-210-3956.json