# NSN 4921-01-056-1242: Fitting, Vacuum Sock

NSN 4921-01-056-1242 (also written 4921010561242; NIIN 01-056-1242) is a fitting, vacuum sock in Federal Supply Class 4921, Torpedo Maintenance, Repair, and Checkout Specialized Equipment. 1 manufacturer part number from 1 supplier is on record. It was last purchased in Sep 2026.

## Identification

- NSN: 4921-01-056-1242 (4921010561242)
- NIIN: 01-056-1242 (010561242)
- Item name: FITTING,VACUUM SOCK
- Federal Supply Class: [FSC 4921 Torpedo Maintenance, Repair, and Checkout Specialized Equipment](https://nsnexplorer.com/fsc/4921/)
- Federal Supply Group: [FSG 49](https://nsnexplorer.com/group/49/)
- Acquisition method suffix code: AMSC G: the government has a complete data package and the rights to use it. (observed 2026-10-10)
- Acquisition method code: 1

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 1579465 | 10001 | NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-28 | [SPE7M526V7803](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4921010561242) | FITTING, VACUUM SOCK | — | $1,990.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4921010561242&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4921010561242
- 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/4921-01-056-1242/
JSON: https://nsnexplorer.com/api/nsn/4921-01-056-1242.json