The Piston,pump, cataloged under National Stock Number 4320-01-441-6375, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Tencarva Machinery Company, Llc Dba Tencarva Machinery Co Div Chesapeake. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-441-6375 |
| Primary Part Number | 15-3700-03 |
| Item Name | Piston,pump |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Tencarva Machinery Company, Llc Dba Tencarva Machinery Co Div Chesapeake |
| Status | ACTIVE |
| Integral Connecting Rod | NOT INCLUDED |
| Retaining Ring Groove | NOT INCLUDED |
| Pin | NOT INCLUDED |
| Oil Groove | NOT INCLUDED |
| Ring | NOT INCLUDED |
| Pin Hole Bushing | NOT INCLUDED |
| Material | STEEL CORROSION RESISTING |
| 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 |
|---|---|
| 15-3700-03 | Tencarva Machinery Company, Llc Dba Tencarva Machinery Co Div Chesapeake (USA) |
| Reference | Meaning |
|---|---|
| 15-3700-03 | 3/9 Design control — primary reference Psg California, Llc Div Dover Corporation |
NSN 4320-01-441-6375 is a Piston,pump, manufactured by Tencarva Machinery Company, Llc Dba Tencarva Machinery Co Div Chesapeake, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-441-6375 has 1 manufacturer part number on file: 15-3700-03 (Tencarva Machinery Company, Llc Dba Tencarva Machinery Co Div Chesapeake).
Key specifications for 15-3700-03: Integral Connecting Rod: NOT INCLUDED; Retaining Ring Groove: NOT INCLUDED; Pin: NOT INCLUDED; Oil Groove: NOT INCLUDED. 7 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.