The Piston,pump, cataloged under National Stock Number 4320-01-265-2018, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Freds Water Service. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Piston,pump |
| FSC / FSG | 4320 — Power and Hand Pumps (FSG 43) |
| Manufacturers | Freds Water Service (CAGE 1FGG0) |
| Parameter | Value |
|---|---|
| NSN | 4320-01-265-2018 |
| Primary Part Number | A08-4 |
| Item Name | Piston,pump |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Freds Water Service |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| A08-4 PRIMARY | Freds Water Service (USA) |
| Reference | Meaning |
|---|---|
| A08-4 | 5/9 Secondary reference Myers F E Co Sub of Pentair Corp |
NSN 4320-01-265-2018 is a Piston,pump, manufactured by Freds Water Service, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-265-2018 has 1 manufacturer part number on file: A08-4 (Freds Water Service).
1 possible match (shared part number, not a government interchangeability claim): 6150-01-430-2064. Verify interchangeability with system specifications before substitution.
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.