# NSN 3120-01-318-0021: Bearing, Plain, Self-Aligning

NSN 3120-01-318-0021 (also written 3120013180021; NIIN 01-318-0021) is a bearing, plain, self-aligning in Federal Supply Class 3120, Bearings, Plain, Unmounted. 11 manufacturer part numbers from 6 suppliers are on record. No purchases are on record yet.

## Identification

- NSN: 3120-01-318-0021 (3120013180021)
- NIIN: 01-318-0021 (013180021)
- 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 2026-10-10)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| ABXV | BORE DIAMETER | INCHES MINIMUM 6.2740 AND INCHES MAXIMUM 6.2750 |
| AGGF | OUTER MEMBER OUTSIDE DIAMETER | INCHES MINIMUM 6.8990 AND INCHES MAXIMUM 6.9000 |
| AGGH | OUTER MEMBER WIDTH | INCHES MINIMUM 0.8950 AND INCHES MAXIMUM 0.9000 |
| AGGJ | INNER MEMBER WIDTH | INCHES MINIMUM 1.2900 AND INCHES MAXIMUM 1.3150 |
| AGKP | STATIC RADIAL LOAD RATING | POUNDS 12500 |
| FEAT | SPECIAL FEATURES | OUTER RING HAS THREE HOLDING TABSEACH WITH A 0.2810 IN. MIN.,0.2860 IN. MAX. HOLE THRU; ITEM USED ON F1,WITH END ITEM F16A/B/C/D |
| MATT | MATERIAL | INNER MEMBER ALUMINUM ALLOY 2024 |
| MATT | MATERIAL | OUTER RACE MEMBER ALUMINUM ALLOY 2024 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | OUTER RACE MEMBER FED SPEC SINGLE MATERIAL RESPONSE QQ-A-225 TO 6 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | INNER MEMBER FED SPEC SINGLE MATERIAL RESPONSE QQ-A-225 TO 6 |
| STYL | STYLE DESIGNATOR | — |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| ADSB100-306 | 15860 | NEW HAMPSHIRE BALL BEARINGS INC DIV ASTRO DIVISION | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| AFT-100T-3 | 56644 | TIMKEN AURORA BEARING COMPANY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| C7547-6 | 02758 | U S BEARINGS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| C7547-6 | 15860 | NEW HAMPSHIRE BALL BEARINGS INC DIV ASTRO DIVISION | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| C7547-6 | 56644 | TIMKEN AURORA BEARING COMPANY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| C7547-6 | 81376 | RBC SOUTHWEST PRODUCTS, INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| C7547-6 | 81755 | LOCKHEED MARTIN CORPORATION DIV LOCKHEED MARTIN AERONAUTICS COMPANY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| C7547-6 | 97613 | SARGENT AEROSPACE & DEFENSE, LLC DBA KAHR BEARINGS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| HSP100TL105 | 02758 | U S BEARINGS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| KSAD100-9 | 97613 | SARGENT AEROSPACE & DEFENSE, LLC DBA KAHR BEARINGS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| SWKN-100-008 | 81376 | RBC SOUTHWEST PRODUCTS, INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=3120013180021&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=3120013180021
- 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/3120-01-318-0021/
JSON: https://nsnexplorer.com/api/nsn/3120-01-318-0021.json