# NSN 4320-01-651-9820: Magnetic Shaft Seal Assembly

NSN 4320-01-651-9820 (also written 4320016519820; NIIN 01-651-9820) is a magnetic shaft seal assembly in Federal Supply Class 4320, Power and Hand Pumps. 1 manufacturer part number from 1 supplier is on record. No purchases are on record yet.

## Identification

- NSN: 4320-01-651-9820 (4320016519820)
- NIIN: 01-651-9820 (016519820)
- Item name: MAGNETIC SHAFT SEAL ASSEMBLY
- Federal Supply Class: [FSC 4320 Power and Hand Pumps](https://nsnexplorer.com/fsc/4320/)
- Federal Supply Group: [FSG 43](https://nsnexplorer.com/group/43/)
- 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 |
| --- | --- | --- |
| PRPY | PROPRIETARY CHARACTERISTICS | PACS |
| SUPP | SUPPLEMENTARY FEATURES | SHAFT ACCOMODATED SIZE: 1.4750 INCHES; 2 MOUNTING HOLES |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | MAGNETIC SEAL |
| AGAV | END ITEM IDENTIFICATION | B1-BACFT |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| B2020 | 04171 | MAGNETIC SEAL LLC | [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=4320016519820&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4320016519820
- 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.

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