The Pump,reciprocating, cataloged under National Stock Number 4320-01-272-3909, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-272-3909 |
| Item Name | Pump,reciprocating |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Status | ACTIVE |
| Discharge Connection Quantity | 1 |
| Pumping Element Type | PISTON |
| Intake Connection Type | THREADED EXTERNAL |
| Pumping Element Operating Position | VERTICAL |
| Reciprocating Stroke Type | VARIABLE |
| Pump Reciprocating Design | DOUBLE ACTING |
| Cylinder Quantity | 1 |
| Maximum Discharge Flow Rate | 6.0 GALLONS PER MINUTE AND 17.0 GALLONS PER MINUTE |
| Intake Connection Quantity | 2 |
| Operation Method | MANUAL |
| 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 |
|---|---|
| 5391 | C/1 Advisory reference — outside the item-of-supply concept North and Judd Inc Wilcox-Crittenden Div |
| R1453 | 3/9 Design control — primary reference E.j. Willis Company, Inc. Dba Ej Willis Co Inc |
NSN 4320-01-272-3909 is a Pump,reciprocating, classified under FSC 4320, Power and Hand Pumps. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 5995-01-333-3300, 4820-01-560-6274. Verify interchangeability with system specifications before substitution.
Key specifications for 4320-01-272-3909: Discharge Connection Quantity: 1; Pumping Element Type: PISTON; Intake Connection Type: THREADED EXTERNAL; Pumping Element Operating Position: VERTICAL. 10 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.