The Shaft,shouldered, cataloged under National Stock Number 3040-01-277-7581, 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. Government technical data includes 13 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3040-01-277-7581 |
| Primary Part Number | 77D606163P001 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Lockheed Martin Corporation Div Rms |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES |
| Step Quantity | 5 |
| First End Diameter | 0.2342 INCHES NOMINAL IN |
| Second End Diameter | 0.7030 INCHES NOMINAL IN |
| Largest Step Diameter | 0.787 INCHES NOMINAL IN |
| Second End Distance From Keyway Center to End | 0.490 INCHES NOMINAL IN |
| First End Style | PLAIN |
| Second End Keyway Width | 0.1247 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Style | WOODRUFF KEYWAY AND INTERNALLY THREADED |
| Material | NICKEL ALLOY |
| Second End Internal Thread Length | 0.500 INCHES NOMINAL IN |
| External Keyway Length | 0.381 INCHES NOMINAL SECOND END 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 |
|---|---|
| 77D606163P001 PRIMARY | Lockheed Martin Corporation Div Rms (USA) |
| Reference | Meaning |
|---|---|
| 77D606163 | D/9 Drawing number reference only Lockheed Martin Corporation Div Rms |
NSN 3040-01-277-7581 is a Shaft,shouldered, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-277-7581 has 1 manufacturer part number on file: 77D606163P001 (Lockheed Martin Corporation Div Rms).
Key specifications for 77D606163P001: Surface Finish: 32.0 MICROINCHES; Step Quantity: 5; First End Diameter: 0.2342 INCHES NOMINAL IN; Second End Diameter: 0.7030 INCHES NOMINAL IN. 13 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.