The Shaft,shouldered, cataloged under National Stock Number 3040-01-486-0170, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 3040-01-486-0170 |
| Primary Part Number | 122-6776279 PC 1 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Surface Finish | 125.0 MICROINCHES |
| Second End Hole Diameter | 0.1406 INCHES NOMINAL IN |
| Step Quantity | 2 |
| First End Diameter | 3.3085 INCHES MINIMUM AND 3.3095 INCHES MAXIMUM IN |
| Second End Diameter | 1.3750 INCHES NOMINAL IN |
| Largest Step Diameter | 3.3085 INCHES MINIMUM AND 3.3095 INCHES MAXIMUM IN |
| First End Style | PLAIN |
| Material Document and Classification | MIL-S-1222GRB7 MIL SPEC ALL MATERIAL RESPONSES |
| Second End Distance From Hole Center to End | 1.125 INCHES NOMINAL IN |
| Second End Hole Depth | 0.500 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Style | CROSS DRILLED HOLE AND INTERNALLY THREADED |
| Material | STEEL |
| Second End Internal Thread Length | 1.125 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 |
|---|---|
| 122-6776279 PC 1 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 6776279 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 3040-01-486-0170 is a Shaft,shouldered, manufactured by Naval Sea Systems Command, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-486-0170 has 1 manufacturer part number on file: 122-6776279 PC 1 (Naval Sea Systems Command).
2 possible matches (shared part number, not a government interchangeability claim): 2040-01-486-0505, 2040-01-486-0512. Verify interchangeability with system specifications before substitution.
Key specifications for 122-6776279 PC 1: Surface Finish: 125.0 MICROINCHES; Second End Hole Diameter: 0.1406 INCHES NOMINAL IN; Step Quantity: 2; First End Diameter: 3.3085 INCHES MINIMUM AND 3.3095 INCHES MAXIMUM IN. 14 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.