The Pump Unit,reciprocating, cataloged under National Stock Number 4320-01-421-1606, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Kamewa Usa Inc. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 4320-01-421-1606 |
| Primary Part Number | 518958 PIECE 27 |
| Item Name | Pump Unit,reciprocating |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Kamewa Usa Inc |
| Status | ACTIVE |
| Discharge Connection Quantity | 1 |
| Pumping Element Type | PISTON |
| Intake Connection Type | UNTHREADED EXTERNAL |
| Pumping Element Operating Position | HORIZONTAL |
| Reciprocating Stroke Type | FIXED |
| Prime Mover Quantity | 1 |
| Pump Quantity | 1 |
| Operating Pressure | 145.0 POUNDS PER SQUARE INCH GAUGE (PSIG) NOMINAL POWER DRIVE LBS |
| Pump Reciprocating Design | SINGLE ACTING |
| Discharge Pressure | 350.0 COMPREHENSIVE PROCUREMENT GUIDELINE - VEHICULAR PRODUCTS - REBUILT VEHICULAR PARTS |
| Cylinder Quantity | 1 |
| Maximum Discharge Flow Rate | 0.850 LITERS PER MINUTE |
| Discharge Connection Type | UNTHREADED EXTERNAL |
| Intake Connection Quantity | 1 |
| Prime Mover Type | PNEUMATIC MOTOR |
| Media for Which Designed | HYDROCARBON FUELS AND OILS |
| 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 |
|---|---|
| 518958 PIECE 27 PRIMARY | Kamewa Usa Inc (USA) |
| Reference | Meaning |
|---|---|
| 518958 PIECE 27 | 5/9 Secondary reference Fuji Trading America Inc |
| 518958 PIECE 27 | 5/9 Secondary reference Rolls-Royce Ab |
| 518958 PIECE 27 | 5/9 Secondary reference Kamewa |
| 518958 | D/9 Drawing number reference only Kamewa |
| 518958 PIECE 27 | 5/9 Secondary reference Fuji Trading (america) Inc. |
NSN 4320-01-421-1606 is a Pump Unit,reciprocating, manufactured by Kamewa Usa Inc, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-421-1606 has 1 manufacturer part number on file: 518958 PIECE 27 (Kamewa Usa Inc).
3 possible matches (shared part number, not a government interchangeability claim): 3010-01-422-5143, 4730-01-425-6665, 4730-01-425-6666. Verify interchangeability with system specifications before substitution.
Key specifications for 518958 PIECE 27: Discharge Connection Quantity: 1; Pumping Element Type: PISTON; Intake Connection Type: UNTHREADED EXTERNAL; Pumping Element Operating Position: HORIZONTAL. 16 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.