The Pump,rotary, cataloged under National Stock Number 4320-01-409-0071, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Oberdorfer Foundries Inc. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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.
| Parameter | Value |
|---|---|
| NSN | 4320-01-409-0071 |
| Primary Part Number | 9000R |
| Item Name | Pump,rotary |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Oberdorfer Foundries Inc |
| Status | ACTIVE |
| Discharge Connection Quantity | 1 |
| Pumping Element Operating Position | HORIZONTAL |
| Drive Connection Type | CLOSE COUPLED |
| Drive Shaft Type | KEY TYPE, EXTERNAL |
| Rotary Pump Design | GEAR |
| Intake Connection Quantity | 1 |
| Media for Which Designed | OIL |
| Mounting Type | BASE |
| Operation Method | POWERED |
| 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 |
|---|---|
| 6080B03041 ITEM 2 | Engine Systems, Inc. (USA) |
| 9000R PRIMARY | Oberdorfer Foundries Inc (USA) |
NSN 4320-01-409-0071 is a Pump,rotary, manufactured by Oberdorfer Foundries Inc, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-409-0071 has 2 manufacturer part numbers on file: 6080B03041 ITEM 2 (Engine Systems, Inc.), 9000R (Oberdorfer Foundries Inc).
1 possible match (shared part number, not a government interchangeability claim): 2940-01-557-0385. Verify interchangeability with system specifications before substitution.
Key specifications for 9000R: Discharge Connection Quantity: 1; Pumping Element Operating Position: HORIZONTAL; Drive Connection Type: CLOSE COUPLED; Drive Shaft Type: KEY TYPE, EXTERNAL. 9 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.