The Shaft,shouldered, cataloged under National Stock Number 3040-01-152-2711, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Davies Precision Machinery. Government technical data includes 12 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-152-2711 |
| Primary Part Number | 77643-93X3 PC 5 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Davies Precision Machinery |
| Status | ACTIVE |
| Second End Flat Length | 0.185 INCHES NOMINAL IN |
| Step Quantity | 4 |
| First End Diameter | 0.5000 INCHES NOMINAL IN |
| Second End Diameter | 1.3750 INCHES NOMINAL IN |
| Largest Step Diameter | 1.375 INCHES NOMINAL IN |
| First End External Thread Length | 0.875 INCHES NOMINAL IN |
| First End Style | EXTERNAL THREADED |
| End Similarity | NOT IDENTICAL |
| Second End Style | FLATTED AND INTERNALLY THREADED |
| Material | STEEL |
| Second End Internal Thread Length | 0.500 INCHES NOMINAL IN |
| Second End Flat Depth | 0.1850 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 |
|---|---|
| 77643-93X3 PC 5 | Davies Precision Machinery (USA) |
| Reference | Meaning |
|---|---|
| 77643-93X3PC5 | 3/2 Design control — primary reference U.S. Government activity |
| 2143837 | D/9 Drawing number reference only U.S. Government activity |
| SSN637-501-2143837 PIECE 5 | 5/2 Secondary reference U.S. Government activity |
NSN 3040-01-152-2711 is a Shaft,shouldered, manufactured by Davies Precision Machinery, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-152-2711 has 1 manufacturer part number on file: 77643-93X3 PC 5 (Davies Precision Machinery).
Key specifications for 77643-93X3 PC 5: Second End Flat Length: 0.185 INCHES NOMINAL IN; Step Quantity: 4; First End Diameter: 0.5000 INCHES NOMINAL IN; Second End Diameter: 1.3750 INCHES NOMINAL IN. 12 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.