The Shaft,shouldered, cataloged under National Stock Number 3040-01-033-7094, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is L3 Technologies, Inc. Div L3 Keo. Government technical data includes 8 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3040-01-033-7094 |
| Primary Part Number | 051581 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | L3 Technologies, Inc. Div L3 Keo |
| Status | ACTIVE |
| Surface Finish | 125.0 MICROINCHES |
| Step Quantity | 3 |
| First End Diameter | 0.1850 INCHES MINIMUM AND 0.1860 INCHES MAXIMUM IN |
| Largest Step Diameter | 0.247 INCHES MINIMUM AND 0.252 INCHES MAXIMUM IN |
| First End Style | PLAIN |
| Material Document and Classification | QQ-S-764,COND A FED SPEC SINGLE MATERIAL RESPONSE |
| End Similarity | IDENTICAL |
| Material | STEEL COMP 303 |
| 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 |
|---|---|
| 051581 PRIMARY | L3 Technologies, Inc. Div L3 Keo (USA) |
| Reference | Meaning |
|---|---|
| 887B051581 | 5/9 Secondary reference L3 Technologies, Inc. Div L3 Keo |
NSN 3040-01-033-7094 is a Shaft,shouldered, manufactured by L3 Technologies, Inc. Div L3 Keo, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-033-7094 has 1 manufacturer part number on file: 051581 (L3 Technologies, Inc. Div L3 Keo).
1 possible match (shared part number, not a government interchangeability claim): 6505-01-533-4417. Verify interchangeability with system specifications before substitution.
Key specifications for 051581: Surface Finish: 125.0 MICROINCHES; Step Quantity: 3; First End Diameter: 0.1850 INCHES MINIMUM AND 0.1860 INCHES MAXIMUM IN; Largest Step Diameter: 0.247 INCHES MINIMUM AND 0.252 INCHES MAXIMUM IN. 8 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.