# NSN 4925-01-556-1973: Plunger Assembly, Ai

NSN 4925-01-556-1973 (also written 4925015561973; NIIN 01-556-1973) is a plunger assembly, ai in Federal Supply Class 4925, Ammunition Maintenance, Repair, and Checkout Specialized Equipment. 1 manufacturer part number from 1 supplier is on record. No purchases are on record yet.

## Identification

- NSN: 4925-01-556-1973 (4925015561973)
- NIIN: 01-556-1973 (015561973)
- Item name: PLUNGER ASSEMBLY,AI
- Federal Supply Class: [FSC 4925 Ammunition Maintenance, Repair, and Checkout Specialized Equipment](https://nsnexplorer.com/fsc/4925/)
- Federal Supply Group: [FSG 49](https://nsnexplorer.com/group/49/)
- 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

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 3305AS1262-1 | 56529 | HYDRAULICS INTERNATIONAL, INC. DBA HYDRAULICS INTERNATIONAL 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=4925015561973&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4925015561973
- 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/4925-01-556-1973/
JSON: https://nsnexplorer.com/api/nsn/4925-01-556-1973.json