The Cap,linear Actuating Cylinder, cataloged under National Stock Number 3040-01-488-4345, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Naval Sea Systems Command. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 3040-01-488-4345 |
| Primary Part Number | 721-7069909-17 |
| Item Name | Cap,linear Actuating Cylinder |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Overall Thickness | 3.120 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 721-7069909-17 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 7069909 | D/9 Drawing number reference only Naval Sea Systems Command |
| H861-1505-17 | 5/2 Secondary reference U.S. Government activity |
| H861-1505 | D/9 Drawing number reference only U.S. Government activity |
NSN 3040-01-488-4345 is a Cap,linear Actuating Cylinder, manufactured by Naval Sea Systems Command, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-488-4345 has 1 manufacturer part number on file: 721-7069909-17 (Naval Sea Systems Command).
4 possible matches (shared part number, not a government interchangeability claim): 3040-01-488-4347, 3040-01-488-4350, 3040-01-488-6079. Verify interchangeability with system specifications before substitution.
Key specifications for 721-7069909-17: Overall Thickness: 3.120 INCHES NOMINAL IN; Overall Length: 7.000 INCHES NOMINAL IN; Overall Width: 6.750 INCHES NOMINAL IN; Special Features: PART OF MISSILE TUBE MUZZLE HATCH HYDRAULIC ROTARY ACTUATOR ASSEMBLY. 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.
NSN 3040-01-488-4345 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.