The Rod Assembly Piston, cataloged under National Stock Number 3950-01-240-2504, is classified within Federal Supply Class 3950 (Winches, Hoists, Cranes, and Derricks) of the Materials Handling Equipment group. The manufacturer of record is Control Flow, Inc. Dba Control Flow Inc. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | Rod Assembly Piston |
| FSC / FSG | 3950 — Winches, Hoists, Cranes, and Derricks (FSG 39) |
| Manufacturers | Control Flow, Inc. Dba Control Flow Inc (CAGE 3X894); David Brown Hydraulics Inc Dba Hydreco (CAGE 0E9N0) |
| Parameter | Value |
|---|---|
| NSN | 3950-01-240-2504 |
| Primary Part Number | 830281 |
| Item Name | Rod Assembly Piston |
| FSC / FSG | 3950 / 39 — Winches, Hoists, Cranes, and Derricks |
| Manufacturer | Control Flow, Inc. Dba Control Flow Inc |
| 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 |
|---|---|
| 830281 PRIMARY | Control Flow, Inc. Dba Control Flow Inc (USA) |
| 830281 PRIMARY | David Brown Hydraulics Inc Dba Hydreco (USA) |
| Reference | Meaning |
|---|---|
| 830281 | 5/9 Secondary reference Control Flow, Inc. Dba Westech Heavy Machinery Division Div Westech Heavy Machinery Division |
NSN 3950-01-240-2504 is a Rod Assembly Piston, manufactured by Control Flow, Inc. Dba Control Flow Inc, classified under FSC 3950, Winches, Hoists, Cranes, and Derricks. Status: active.
NSN 3950-01-240-2504 has 2 manufacturer part numbers on file: 830281 (Control Flow, Inc. Dba Control Flow Inc), 830281 (David Brown Hydraulics Inc Dba Hydreco).
1 possible match (shared part number, not a government interchangeability claim): 3040-01-359-2227. 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.