# NSN 3120-01-051-1835: Bearing, Plain, Self-Aligning

NSN 3120-01-051-1835 (also written 3120010511835; NIIN 01-051-1835) is a bearing, plain, self-aligning in Federal Supply Class 3120, Bearings, Plain, Unmounted. 13 manufacturer part numbers from 7 suppliers are on record. It was last purchased in Oct 2026.

## Identification

- NSN: 3120-01-051-1835 (3120010511835)
- NIIN: 01-051-1835 (010511835)
- 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 C: needs engineering source approval; other sources must qualify first. (observed 2026-10-24)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| ABXV | BORE DIAMETER | INCHES MINIMUM 0.5620 AND INCHES MAXIMUM 0.5625 |
| AGGF | OUTER MEMBER OUTSIDE DIAMETER | INCHES MINIMUM 1.0932 AND INCHES MAXIMUM 1.0937 |
| AGGH | OUTER MEMBER WIDTH | INCHES MINIMUM 0.4320 AND INCHES MAXIMUM 0.4420 |
| AGGJ | INNER MEMBER WIDTH | INCHES MINIMUM 0.5600 AND INCHES MAXIMUM 0.5620 |
| AGKP | STATIC RADIAL LOAD RATING | POUNDS 31900 |
| CQFM | HARDNESS RATING | INNER MEMBER ROCKWELL C MINIMUM 55.0 AND ROCKWELL C MAXIMUM 61.0 |
| MATT | MATERIAL | OUTER RACE MEMBER STEEL COMP 630 |
| MATT | MATERIAL | INNER MEMBER STEEL COMP 440C |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | OUTER RACE MEMBER ASSN STD SINGLE MATERIAL RESPONSE A-S 5643 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | INNER MEMBER ASSN STD SINGLE MATERIAL RESPONSE A-S 5630 |
| SFTT | SURFACE TREATMENT | INNER MEMBER CHROMIUM |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | INNER MEMBER FED SPEC SINGLE TREATMENT RESPONSE QQ-C-320 CL2 |
| STYL | STYLE DESIGNATOR | — |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 03-505-09E-002 | 09455 | RBC TRANSPORT DYNAMICS CORP DIV RBC TRANSPORT DYNAMICS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 3120PL0685309 | 9009H | JEDNOLITY INDEKS MATERIALOWY - UNIFORM MATERIAL INDEX | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 3120PL1724065 | 9009H | JEDNOLITY INDEKS MATERIALOWY - UNIFORM MATERIAL INDEX | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| ABG9V-102 | 50294 | NEW HAMPSHIRE BALL BEARINGS INC DIV PRECISION DIVISION | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| ASB9V49 | 15860 | NEW HAMPSHIRE BALL BEARINGS INC DIV ASTRO DIVISION | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| C7537-9 | 09455 | RBC TRANSPORT DYNAMICS CORP DIV RBC TRANSPORT DYNAMICS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| C7537-9 | 15860 | NEW HAMPSHIRE BALL BEARINGS INC DIV ASTRO DIVISION | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| C7537-9 | 50294 | NEW HAMPSHIRE BALL BEARINGS INC DIV PRECISION DIVISION | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| C7537-9 | 56644 | TIMKEN AURORA BEARING COMPANY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| C7537-9 | 81755 | LOCKHEED MARTIN CORPORATION DIV LOCKHEED MARTIN AERONAUTICS COMPANY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| C7537-9 | 97613 | SARGENT AEROSPACE & DEFENSE, LLC DBA KAHR BEARINGS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| KSSB9-3 | 97613 | SARGENT AEROSPACE & DEFENSE, LLC DBA KAHR BEARINGS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| NC-9G-4 | 56644 | TIMKEN AURORA BEARING COMPANY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-10-23 | [SPE4A625P0Z10](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=3120010511835) | BEARING, PLAIN, SELF- | MECHATRONICS, INC DBA NATIONAL PRECISION BEARING | $6,932.51 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=3120010511835&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=3120010511835
- 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.

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