The Piston,linear Actuating Cylinder, cataloged under National Stock Number 3040-01-135-4370, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Westerbeke Corporation. 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 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-135-4370 |
| Primary Part Number | 16185 |
| Item Name | Piston,linear Actuating Cylinder |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Westerbeke Corporation |
| Status | ACTIVE |
| Outside Diameter | 3.495 INCHES NOMINAL IN |
| Material | STEEL |
| 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 |
|---|---|
| 16185 PRIMARY | Westerbeke Corporation (USA) |
NSN 3040-01-135-4370 is a Piston,linear Actuating Cylinder, manufactured by Westerbeke Corporation, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-135-4370 has 1 manufacturer part number on file: 16185 (Westerbeke Corporation).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-702-8880. Verify interchangeability with system specifications before substitution.
Key specifications for 16185: Outside Diameter: 3.495 INCHES NOMINAL IN; Overall Length: 2.438 INCHES NOMINAL IN; Special Features: 1 END 0.750 IN.OD IN; Material: STEEL. 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.