# NSN 3120-00-661-7127: Bearing, Plain, Self-Aligning

NSN 3120-00-661-7127 (also written 3120006617127; NIIN 00-661-7127) is a bearing, plain, self-aligning in Federal Supply Class 3120, Bearings, Plain, Unmounted. 3 manufacturer part numbers from 3 suppliers are on record. It was last purchased in Oct 2026.

## Identification

- NSN: 3120-00-661-7127 (3120006617127)
- NIIN: 00-661-7127 (006617127)
- Item name: BEARING,PLAIN,SELF-ALIGNING
- Federal Supply Class: [FSC 3120 Bearings, Plain, Unmounted](https://nsnexplorer.com/fsc/3120/)
- Federal Supply Group: [FSG 31](https://nsnexplorer.com/group/31/)
- Acquisition method suffix code: AMSC Q: the government lacks adequate data or rights, but breakout to competition is expected. (observed 2026-10-10)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| ABXV | BORE DIAMETER | INCHES MINIMUM 0.2495 AND INCHES MAXIMUM 0.2500 |
| AGGF | OUTER MEMBER OUTSIDE DIAMETER | INCHES MINIMUM 0.6557 AND INCHES MAXIMUM 0.6562 |
| AGGH | OUTER MEMBER WIDTH | INCHES NOMINAL 0.2500 |
| CTLM | LUBRICATION FEATURE | OUTER RACE MEMBER PERFORATION |
| MATT | MATERIAL | INNER MEMBER STEEL COMP E52100 |
| MATT | MATERIAL | OUTER RACE MEMBER STEEL |
| SFTT | SURFACE TREATMENT | INNER MEMBER CHROMIUM |
| SFTT | SURFACE TREATMENT | OUTER RACE MEMBER CADMIUM |
| CTLM | LUBRICATION FEATURE | EXTERNAL OUTER MEMBER GROOVE |
| CTLM | LUBRICATION FEATURE | INNER MEMBER PERFORATION |
| CTLM | LUBRICATION FEATURE | INTERNAL INNER MEMBER GROOVE |
| CQFM | HARDNESS RATING | INNER MEMBER ROCKWELL C NOMINAL 59.0 |
| CQFM | HARDNESS RATING | OUTER RACE MEMBER ROCKWELL C NOMINAL 36.0 |
| AGGJ | INNER MEMBER WIDTH | INCHES MINIMUM 0.3380 AND INCHES MAXIMUM 0.3430 |
| STYL | STYLE DESIGNATOR | — |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| HSBG-4S | A0170 | LEONARDO SPA AERONAUTICS DIVISION - POMIGLIANO D'ARCO SITE | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| HSBG4S | 97613 | SARGENT AEROSPACE & DEFENSE, LLC DBA KAHR BEARINGS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| RS4 | 99528 | RADIAL BEARING CORPORATION DBA RADIAL BEARING CORP OF CONNECTICU DIV RADIAL BEARING LLC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Price history

Newest first.

| Date | Unit price | Quantity | Supplier | Agency | Source |
| --- | --- | --- | --- | --- | --- |
| 2026-09-08 | $297.00 | 7 | BROWN HELICOPTER, INC. DBA BROWN HELICOPTER INC | — | [record](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=3120006617127) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-10-08 | [SPE4A627P0337](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=3120006617127) | BEARING, PLAIN, SELF- | — | $1,488.00 |
| 2026-09-08 | [SPE4A626P0K91](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=3120006617127) | BEARING, PLAIN, SELF-ALIGNING | BROWN HELICOPTER, INC. DBA BROWN HELICOPTER INC | $2,079.00 |
| 2026-09-02 | [SPE4A626P0J55](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=3120006617127) | BEARING, PLAIN, SELF-ALIGNING | BROWN HELICOPTER, INC. DBA BROWN HELICOPTER INC | $2,460.00 |
| 2026-08-12 | [SPE4A026P2395](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=3120006617127) | BEARING, PLAIN, SELF-ALIGNING | BROWN HELICOPTER, INC. DBA BROWN HELICOPTER INC | $1,164.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=3120006617127&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=3120006617127
- 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/3120-00-661-7127/
JSON: https://nsnexplorer.com/api/nsn/3120-00-661-7127.json