# NSN 3120-00-172-9423: Bearing, Idler Gear

NSN 3120-00-172-9423 (also written 3120001729423; NIIN 00-172-9423) is a bearing, idler gear in Federal Supply Class 3120, Bearings, Plain, Unmounted. 2 manufacturer part numbers from 1 supplier are on record. It was last purchased in Oct 2026.

## Identification

- NSN: 3120-00-172-9423 (3120001729423)
- NIIN: 00-172-9423 (001729423)
- Item name: BEARING,IDLER GEAR
- 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 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 |
| --- | --- | --- |
| TEXT | GENERAL CHARACTERISTICS ITEM DESCRIPTION | 20.080 IN. LG,0.873 IN. W,0.155 IN. THK |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 553592-1 | 73030 | HAMILTON SUNDSTRAND CORPORATION DBA COLLINS AEROSPACE | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 733863-1 | 73030 | HAMILTON SUNDSTRAND CORPORATION DBA COLLINS AEROSPACE | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-10-07 | [SPE4A125G0027/SPE4A627F0163](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=3120001729423) | BEARING, IDLER GEAR | HAMILTON SUNDSTRAND CORPORATION DBA COLLINS AEROSPACE | $4,524.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=3120001729423&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=3120001729423
- 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/3120-00-172-9423/
JSON: https://nsnexplorer.com/api/nsn/3120-00-172-9423.json