The Pumping Assembly,flammable Liqui, cataloged under National Stock Number 4320-00-903-3472, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. Government technical data includes 26 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4320-00-903-3472 |
| Item Name | Pumping Assembly,flammable Liqui |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Status | ACTIVE |
| Discharge Connection Quick Disconnect Style | CAM OR LEVER |
| Discharge Connection Flange Thickness | 0.375 INCHES NOMINAL IN |
| Suction Connection Flange Bolt Circle Diameter | 5.875 INCHES NOMINAL IN |
| Pump Type | CENTRIFUGAL |
| Discharge Connection Flange Bolt Hole Quantity | 8 |
| Suction Connection Flange Thickness | 0.375 INCHES NOMINAL IN |
| Cable Reel | NOT INCLUDED |
| Ground Cable | INCLUDED |
| Suction Connection Flange Type | DRILLED |
| Discharge Connection Quick Disconnect Size | 4 IN. IN |
| Suction Connection Quick Disconnect Style | CAM OR LEVER |
| Discharge Connection Flange Type | DRILLED |
| Suction Connection Quick Disconnect Size | 4 IN. IN |
| Discharge Connection Flange Bolt Hole Diameter | 0.438 INCHES NOMINAL IN |
| Suction Connection Flange Bolt Hole Diameter | 0.438 INCHES NOMINAL IN |
| Drum Emptying Manifold Assembly | NOT INCLUDED |
| Water Remover Type | STRAINER |
| Prime Mover Horsepower Rating | 20.000 |
| Explosion Proof Feature | NOT INCLUDED |
| Capacity Rating | 350.0 GALLONS PER MINUTE |
| Suction Connection Type | FLANGED AND QUICK DISCONNECT |
| Suction Connection Flange Bolt Hole Quantity | 8 |
| Prime Mover Type | GASOLINE ENGINE |
| Mounting Type | TRAILER |
| Discharge Connection Type | FLANGED OR QUICK DISCONNECT |
| Discharge Connection Flange Bolt Circle Diameter | 5.875 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| MILP52423 | 4/1 Identification reference U.S. Government activity |
| TIP00603-30JUL70 | 5/2 Secondary reference U.S. Government activity |
NSN 4320-00-903-3472 is a Pumping Assembly,flammable Liqui, classified under FSC 4320, Power and Hand Pumps. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 4320-00-916-9172. Verify interchangeability with system specifications before substitution.
Key specifications for 4320-00-903-3472: Discharge Connection Quick Disconnect Style: CAM OR LEVER; Discharge Connection Flange Thickness: 0.375 INCHES NOMINAL IN; Suction Connection Flange Bolt Circle Diameter: 5.875 INCHES NOMINAL IN; Pump Type: CENTRIFUGAL. 26 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.