The Pump,rotary, cataloged under National Stock Number 4320-01-356-8666, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Raytheon Company Dba Raytheon Co. Government technical data includes 11 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4320-01-356-8666 |
| Primary Part Number | 1039431-1 |
| Item Name | Pump,rotary |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Raytheon Company Dba Raytheon Co |
| Status | ACTIVE |
| Discharge Connection Quantity | 1 |
| Intake Connection Type | UNTHREADED EXTERNAL |
| Pumping Element Operating Position | HORIZONTAL |
| Control Location | CENTER |
| Discharge Connection Thread Size and Series/type Designator | 0.750-16 UNF |
| Volume Control Type | ROTARY |
| Discharge Connection Type | THREADED INTERNAL |
| Intake Connection Quantity | 1 |
| Media for Which Designed | HYDROCARBON FUELS AND OILS |
| Pump Rotation Direction | CLOCKWISE |
| 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 |
NSN 4320-01-356-8666 is a Pump,rotary, manufactured by Raytheon Company Dba Raytheon Co, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-356-8666 has 2 manufacturer part numbers on file: 1039431-1 (Raytheon Company), 1039431-1 (Raytheon Company Dba Raytheon Co).
1 possible match (shared part number, not a government interchangeability claim): 1055-01-495-8608. Verify interchangeability with system specifications before substitution.
Key specifications for 1039431-1: Discharge Connection Quantity: 1; Intake Connection Type: UNTHREADED EXTERNAL; Pumping Element Operating Position: HORIZONTAL; Control Location: CENTER. 11 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.