The Shaft,shouldered, cataloged under National Stock Number 3040-01-088-5742, 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 Corp Electronics and Missiles Div. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 3040-01-088-5742 |
| Primary Part Number | 124695-3 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Lockheed Martin Corp Electronics and Missiles Div |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES |
| Step Quantity | 3 |
| First End Diameter | 0.4380 INCHES NOMINAL IN |
| Largest Step Diameter | 1.250 INCHES NOMINAL IN |
| First End Style | PLAIN |
| Material Document and Classification | QQ-T-570,CLASS S1 FED SPEC SINGLE MATERIAL RESPONSE |
| End Similarity | IDENTICAL |
| Material | STEEL |
| 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 |
|---|---|
| 124695-3 | Lockheed Martin Corp Electronics and Missiles Div (USA) |
| Reference | Meaning |
|---|---|
| 124695 | D/9 Drawing number reference only Lockheed Martin Corp Electronics and Missiles Div |
| 124695-3 | 3/9 Design control — primary reference West Coast Chucking |
NSN 3040-01-088-5742 is a Shaft,shouldered, manufactured by Lockheed Martin Corp Electronics and Missiles Div, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-088-5742 has 1 manufacturer part number on file: 124695-3 (Lockheed Martin Corp Electronics and Missiles Div).
2 possible matches (shared part number, not a government interchangeability claim): 3040-01-088-6535, 5330-01-608-7218. Verify interchangeability with system specifications before substitution.
Key specifications for 124695-3: Surface Finish: 32.0 MICROINCHES; Step Quantity: 3; First End Diameter: 0.4380 INCHES NOMINAL IN; Largest Step Diameter: 1.250 INCHES NOMINAL 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.