The Pump Assy, cataloged under National Stock Number 4320-01-643-1025, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Bird-Johnson Propeller Company, Llc. The record lists 4 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Pump Assy |
| FSC / FSG | 4320 — Power and Hand Pumps (FSG 43) |
| Manufacturers | Bird-Johnson Propeller Company, Llc (CAGE 07309); Rolls-Royce Marine North America Inc. (CAGE 38ZC7); Viking Pump, Inc (CAGE 63097) |
| Parameter | Value |
|---|---|
| NSN | 4320-01-643-1025 |
| Primary Part Number | NM220607 REV B PN SGN-40570-GOV |
| Item Name | Pump Assy |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Bird-Johnson Propeller Company, Llc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| NM220607 REV B PN SGN-40570-GOV PRIMARY | Bird-Johnson Propeller Company, Llc (USA) |
| NMM220607 PRIMARY | Rolls-Royce Marine North America Inc. (USA) |
| L-0570-1839-508 PRIMARY | Viking Pump, Inc (USA) |
| SGN-40570-GOV PRIMARY | Viking Pump, Inc (USA) |
| Reference | Meaning |
|---|---|
| NMM220607 | 5/9 Secondary reference Bird-Johnson Propeller Company, Llc |
NSN 4320-01-643-1025 is a Pump Assy, manufactured by Bird-Johnson Propeller Company, Llc, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-643-1025 has 4 manufacturer part numbers on file: NM220607 REV B PN SGN-40570-GOV (Bird-Johnson Propeller Company, Llc), NMM220607 (Rolls-Royce Marine North America Inc.), L-0570-1839-508 (Viking Pump, Inc), SGN-40570-GOV (Viking Pump, Inc).
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.