The Rotor and Shaft Pump Assembly, cataloged under National Stock Number 4320-00-021-6862, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Weldon Pump Llc. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-00-021-6862 |
| Primary Part Number | 100373 |
| Item Name | Rotor and Shaft Pump Assembly |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Weldon Pump Llc |
| Status | ACTIVE |
| Pump Design Control Activity | 9Z270 |
| Material | STEEL CORROSION RESISTING |
| 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 |
|---|---|
| 100373 PRIMARY | Weldon Pump Llc (USA) |
| Reference | Meaning |
|---|---|
| 100373 | 5/9 Secondary reference Weldon Tool Co the |
NSN 4320-00-021-6862 is a Rotor and Shaft Pump Assembly, manufactured by Weldon Pump Llc, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-00-021-6862 has 1 manufacturer part number on file: 100373 (Weldon Pump Llc).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-040-7530. Verify interchangeability with system specifications before substitution.
Key specifications for 100373: Pump Design Control Activity: 9Z270; Special Features: GROUND FINISH; Material: STEEL CORROSION RESISTING. 2 specifications are documented in the U.S. Government catalog.
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.