The Head,linear Actuating Cylinder, cataloged under National Stock Number 3040-01-187-1256, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Moog Inc. Dba Ampac-Isp Corp. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 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 | 3040-01-187-1256 |
| Primary Part Number | 26811 |
| Item Name | Head,linear Actuating Cylinder |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Moog Inc. Dba Ampac-Isp Corp |
| Status | ACTIVE |
| Overall Thickness | 2.515 INCHES MAXIMUM 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 |
|---|---|
| 26811 PRIMARY | Moog Inc. Dba Ampac-Isp Corp (USA) |
| 265-26805 ITEM 3 | Moog Inc. Dba Ampac-Isp Corp (USA) |
NSN 3040-01-187-1256 is a Head,linear Actuating Cylinder, manufactured by Moog Inc. Dba Ampac-Isp Corp, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-187-1256 has 2 manufacturer part numbers on file: 26811 (Moog Inc. Dba Ampac-Isp Corp), 265-26805 ITEM 3 (Moog Inc. Dba Ampac-Isp Corp).
2 possible matches (shared part number, not a government interchangeability claim): 5955-01-252-3486, 5836-01-653-7697. Verify interchangeability with system specifications before substitution.
Key specifications for 26811: Overall Thickness: 2.515 INCHES MAXIMUM IN; Overall Length: 3.000 INCHES MAXIMUM IN; Overall Width: 2.755 INCHES MAXIMUM IN; Special Features: THREADED ON ONE END. 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.