The Shaft,shouldered, cataloged under National Stock Number 3040-01-256-0675, 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 Rms. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 — Miscellaneous Power Transmission Equipment (FSG 30) |
| Manufacturers | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (CAGE 10001); Lockheed Martin Corporation Div Rms (CAGE 02769) |
| Parameter | Value |
|---|---|
| NSN | 3040-01-256-0675 |
| Primary Part Number | 502126 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Lockheed Martin Corporation Div Rms |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 3151346 | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 502126 PRIMARY | Lockheed Martin Corporation Div Rms (USA) |
| Reference | Meaning |
|---|---|
| 502126 | 5/9 Secondary reference Lockheed Martin Corporation Div Rms - Mitchel Field |
NSN 3040-01-256-0675 is a Shaft,shouldered, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-256-0675 has 2 manufacturer part numbers on file: 3151346 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 502126 (Lockheed Martin Corporation Div Rms).
1 possible match (shared part number, not a government interchangeability claim): 6220-01-417-3397. Verify interchangeability with system specifications before substitution.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 3040-01-256-0675 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.