# NSN 3120-01-173-3763: Bearing, Plain, Self-Aligning

NSN 3120-01-173-3763 (also written 3120011733763; NIIN 01-173-3763) is a bearing, plain, self-aligning in Federal Supply Class 3120, Bearings, Plain, Unmounted. 15 manufacturer part numbers from 9 suppliers are on record. It was last purchased in Sep 2026.

## Identification

- NSN: 3120-01-173-3763 (3120011733763)
- NIIN: 01-173-3763 (011733763)
- 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 12.0010 AND INCHES MAXIMUM 12.0030 |
| AGGF | OUTER MEMBER OUTSIDE DIAMETER | INCHES MINIMUM 13.6250 AND INCHES MAXIMUM 13.6270 |
| AGGH | OUTER MEMBER WIDTH | INCHES MINIMUM 2.4980 AND INCHES MAXIMUM 2.5030 |
| AGGJ | INNER MEMBER WIDTH | INCHES MINIMUM 2.9980 AND INCHES MAXIMUM 3.0030 |
| CRTL | CRITICALITY CODE JUSTIFICATION | FEAT |
| FEAT | SPECIAL FEATURES | PER B-1 ENGINEERING |
| MATT | MATERIAL | OUTER RACE MEMBER ALUMINUM ALLOY 2024 OR ALUMINUM ALLOY 2124 |
| MATT | MATERIAL | INNER MEMBER ALUMINUM ALLOY 2024 OR ALUMINUM ALLOY 2124 |
| MATT | MATERIAL | RACE LINER PLASTIC POLYTETRAFLUOROETHYLENE |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | OUTER RACE MEMBER FED SPEC 1ST MATERIAL RESPONSE QQ-A-200 TO 3,T8511 OR FED SPEC 2ND MATERIAL RESPONSE QQ-A-250 TO 29,T851 |
| MDCL | MATERIAL DOCUMENT AND CLASSIFICATION | INNER MEMBER FED SPEC 1ST MATERIAL RESPONSE QQ-A-200 TO 3,T8511 OR FED SPEC 2ND MATERIAL RESPONSE QQ-A-250 TO 29,T851 |
| SFTT | SURFACE TREATMENT | INNER MEMBER ANODIZE |
| SFTT | SURFACE TREATMENT | OUTER RACE MEMBER ANODIZE |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | INNER MEMBER MIL SPEC SINGLE TREATMENT RESPONSE -IL-A-8625,TYE 3 |
| STDC | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | OUTER RACE MEMBER MIL SPEC SINGLE TREATMENT RESPONSE -IL-A-8625,TYE 2,CLASS 1 |
| STYL | STYLE DESIGNATOR | — |
| TEST | TEST DATA DOCUMENT | SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). 81349--IL-I-6866 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 79571 | 09455 | RBC TRANSPORT DYNAMICS CORP DIV RBC TRANSPORT DYNAMICS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| ADSB192-303 | 15860 | NEW HAMPSHIRE BALL BEARINGS INC DIV ASTRO DIVISION | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| HSP192TL101 | 02758 | U S BEARINGS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| HT192-101 | 50294 | NEW HAMPSHIRE BALL BEARINGS INC DIV PRECISION DIVISION | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| KSAD192-5 | 97613 | SARGENT AEROSPACE & DEFENSE, LLC DBA KAHR BEARINGS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| KSC179599B | 50632 | KAMATICS CORPORATION | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| LE131-0007-0001 | 02758 | U S BEARINGS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| LE131-0007-0001 | 09455 | RBC TRANSPORT DYNAMICS CORP DIV RBC TRANSPORT DYNAMICS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| LE131-0007-0001 | 10000 | MANEY AIRCRAFT, INC. DBA MANEY AIRCRAFT | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| LE131-0007-0001 | 15860 | NEW HAMPSHIRE BALL BEARINGS INC DIV ASTRO DIVISION | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| LE131-0007-0001 | 43999 | THE BOEING COMPANY DIV LEGACY AM&M | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| LE131-0007-0001 | 50294 | NEW HAMPSHIRE BALL BEARINGS INC DIV PRECISION DIVISION | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| LE131-0007-0001 | 50632 | KAMATICS CORPORATION | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| LE131-0007-0001 | 81376 | RBC SOUTHWEST PRODUCTS, INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| LE131-0007-0001 | 97613 | SARGENT AEROSPACE & DEFENSE, LLC DBA KAHR BEARINGS | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-21 | [SPE4A625PN098](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=3120011733763) | BEARING, PLAIN, SELF- | RBC SOUTHWEST PRODUCTS, INC. | $771,620.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=3120011733763&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=3120011733763
- 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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