The Shaft,shouldered, cataloged under National Stock Number 3040-01-227-9056, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Lockheed Martin Corporation Div Rotary and Mission Systems. Government technical data includes 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-227-9056 |
| Primary Part Number | S35178 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Lockheed Martin Corporation Div Rotary and Mission Systems |
| Status | ACTIVE |
| Step Quantity | 2 |
| First End Diameter | 1.0000 INCHES NOMINAL IN |
| Second End Diameter | 0.7490 INCHES NOMINAL IN |
| Largest Step Diameter | 1.000 INCHES NOMINAL IN |
| First End Style | FLAT KEYWAY |
| First End Keyway Depth | 0.1410 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Style | PLAIN |
| Material | STEEL COMP 1018 |
| External Keyway Length | 1.0000 INCHES NOMINAL FIRST END IN |
| First End Keyway Width | 0.2520 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 |
|---|---|
| S35178 PRIMARY | Lockheed Martin Corporation Div Rotary and Mission Systems (USA) |
| Reference | Meaning |
|---|---|
| S35178 | 5/9 Secondary reference Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin |
NSN 3040-01-227-9056 is a Shaft,shouldered, manufactured by Lockheed Martin Corporation Div Rotary and Mission Systems, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-227-9056 has 1 manufacturer part number on file: S35178 (Lockheed Martin Corporation Div Rotary and Mission Systems).
Key specifications for S35178: Step Quantity: 2; First End Diameter: 1.0000 INCHES NOMINAL IN; Second End Diameter: 0.7490 INCHES NOMINAL IN; Largest Step Diameter: 1.000 INCHES NOMINAL IN. 11 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.