# NSN 1650-01-237-4425: Shaft, Block And Piston Assembly

NSN 1650-01-237-4425 (also written 1650012374425; NIIN 01-237-4425) is a shaft, block and piston assembly in Federal Supply Class 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. 1 manufacturer part number from 1 supplier is on record. The government has 1 open solicitation for it.

## Identification

- NSN: 1650-01-237-4425 (1650012374425)
- NIIN: 01-237-4425 (012374425)
- Item name: SHAFT,BLOCK AND PISTON ASSEMBLY
- Federal Supply Class: [FSC 1650 Aircraft Hydraulic, Vacuum, and De-icing System Components](https://nsnexplorer.com/fsc/1650/)
- Federal Supply Group: [FSG 16](https://nsnexplorer.com/group/16/)
- Acquisition method suffix code: AMSC C: needs engineering source approval; other sources must qualify first. (observed 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AGAV | END ITEM IDENTIFICATION | B-1B AIRCRAFT |
| ZZZV | FSC APPLICATION DATA | AIRCRAFT HYDRAULIC SYSTEM |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 622308 | 62983 | EATON AEROSPACE, LLC DBA JACKSON SOUTH | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Open solicitations

| Solicitation | Quantity | Closes | Link |
| --- | --- | --- | --- |
| SPE7M4-27-T-2387 | 6 | 2026-11-16 | [DIBBS](https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=1650012374425&category=nsn) |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=1650012374425&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=1650012374425
- 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/1650-01-237-4425/
JSON: https://nsnexplorer.com/api/nsn/1650-01-237-4425.json