The Piston,pump, cataloged under National Stock Number 4320-00-446-8418, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Columbus Jack Corporation Div Columbus Jack. Government technical data includes 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4320-00-446-8418 |
| Primary Part Number | 915-251 |
| Item Name | Piston,pump |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Columbus Jack Corporation Div Columbus Jack |
| Status | ACTIVE |
| Diameter | 0.750 INCHES NOMINAL IN |
| Material | COPPER ALLOY |
| 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 |
|---|---|
| 915-251 PRIMARY | Columbus Jack Corporation Div Columbus Jack (USA) |
| Reference | Meaning |
|---|---|
| 915-251 | 3/9 Design control — primary reference Age Logistics Corporation |
NSN 4320-00-446-8418 is a Piston,pump, manufactured by Columbus Jack Corporation Div Columbus Jack, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-00-446-8418 has 1 manufacturer part number on file: 915-251 (Columbus Jack Corporation Div Columbus Jack).
2 possible matches (shared part number, not a government interchangeability claim): 5950-00-919-0367, 5130-01-577-4140. Verify interchangeability with system specifications before substitution.
Key specifications for 915-251: Diameter: 0.750 INCHES NOMINAL IN; Material: COPPER ALLOY. 2 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.