The Magnetic Shaft Seal Assembly, cataloged under National Stock Number 4320-01-651-9820, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Magnetic Seal Llc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Magnetic Shaft Seal Assembly |
| FSC / FSG | 4320 — Power and Hand Pumps (FSG 43) |
| Manufacturers | Magnetic Seal Llc (CAGE 04171) |
| Parameter | Value |
|---|---|
| NSN | 4320-01-651-9820 |
| Primary Part Number | B2020 |
| Item Name | Magnetic Shaft Seal Assembly |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Magnetic Seal Llc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| B2020 PRIMARY | Magnetic Seal Llc (USA) |
NSN 4320-01-651-9820 is a Magnetic Shaft Seal Assembly, manufactured by Magnetic Seal Llc, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-651-9820 has 1 manufacturer part number on file: B2020 (Magnetic Seal Llc).
1 possible match (shared part number, not a government interchangeability claim): 7930-01-670-8329. Verify interchangeability with system specifications before substitution.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.