The Shaft,straight, cataloged under National Stock Number 3040-01-356-0809, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Omnithruster Inc.. Government technical data includes 15 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 3040-01-356-0809 |
| Primary Part Number | C-26SV0304 |
| Item Name | Shaft,straight |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Omnithruster Inc. |
| Status | ACTIVE |
| First End Diameter | 2.0000 INCHES NOMINAL IN |
| Second End Diameter | 2.0000 INCHES NOMINAL IN |
| First End Style | FLAT KEYWAY AND CROSS DRILLED HOLE |
| Second End Keyway Width | 0.5010 INCHES NOMINAL IN |
| First End Keyway Depth | 0.0625 INCHES NOMINAL IN |
| Second End Keyway Depth | 0.0625 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| First End Hole Diameter | 0.5313 INCHES NOMINAL IN |
| Second End Style | FLAT KEYWAYS AND INTERNALLY THREADED |
| Material | STEEL COMP 316 |
| Second End Internal Thread Length | 1.0000 INCHES NOMINAL IN |
| First End Distance From Hole Center to End | 1.2300 INCHES NOMINAL IN |
| External Keyway Length | 2.4800 INCHES NOMINAL SECOND END IN |
| External Keyway Length | 7.0000 INCHES NOMINAL FIRST END IN |
| First End Keyway Width | 0.5010 INCHES NOMINAL IN |
| 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 |
|---|---|
| C-26SV0304 PRIMARY | Omnithruster Inc. (USA) |
| 2288-AD2-10210 ITEM 2 | Omnithruster Inc. (USA) |
| Reference | Meaning |
|---|---|
| 2288-AD2-10210 | D/9 Drawing number reference only Omnithruster Inc. |
NSN 3040-01-356-0809 is a Shaft,straight, manufactured by Omnithruster Inc., classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-356-0809 has 2 manufacturer part numbers on file: C-26SV0304 (Omnithruster Inc.), 2288-AD2-10210 ITEM 2 (Omnithruster Inc.).
1 possible match (shared part number, not a government interchangeability claim): 3040-01-356-0814. Verify interchangeability with system specifications before substitution.
Key specifications for C-26SV0304: First End Diameter: 2.0000 INCHES NOMINAL IN; Second End Diameter: 2.0000 INCHES NOMINAL IN; First End Style: FLAT KEYWAY AND CROSS DRILLED HOLE; Second End Keyway Width: 0.5010 INCHES NOMINAL IN. 15 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.