The Shaft,shouldered, cataloged under National Stock Number 3040-01-154-6377, 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 16 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 3040-01-154-6377 |
| Primary Part Number | 709-4684922 ITEM 11 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Surface Finish | 63.0 MICROINCHES |
| First End Width Across Flats | 0.631 INCHES NOMINAL IN |
| Step Quantity | 3 |
| First End Diameter | 0.7490 INCHES NOMINAL IN |
| First End Step Length | 1.250 INCHES NOMINAL IN |
| Second End Diameter | 1.8000 INCHES NOMINAL IN |
| Largest Step Diameter | 2.380 INCHES NOMINAL IN |
| First End Style | SQUARE (ROUND CORNERS) |
| Second End Keyway Width | 0.1900 INCHES NOMINAL IN |
| Material Document and Classification | QQ-S-763,COND B FED SPEC ALL MATERIAL RESPONSES |
| Second End Keyway Depth | 0.939 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Style | FLAT KEYWAYS AND INTERNALLY THREADED |
| Material | STEEL COMP 304 |
| Second End Internal Thread Length | 1.810 INCHES NOMINAL IN |
| External Keyway Length | 1.810 INCHES NOMINAL SECOND END IN |
| 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 |
|---|---|
| 709-4684922 ITEM 11 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 87832-1651 | D/9 Drawing number reference only U.S. Government activity |
| 709-4684922 | D/9 Drawing number reference only U.S. Government activity |
| 87832-1651 ITEM 11 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3040-01-154-6377 is a Shaft,shouldered, manufactured by Naval Sea Systems Command, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-154-6377 has 1 manufacturer part number on file: 709-4684922 ITEM 11 (Naval Sea Systems Command).
2 possible matches (shared part number, not a government interchangeability claim): 3020-01-154-6380, 2520-01-155-8027. Verify interchangeability with system specifications before substitution.
Key specifications for 709-4684922 ITEM 11: Surface Finish: 63.0 MICROINCHES; First End Width Across Flats: 0.631 INCHES NOMINAL IN; Step Quantity: 3; First End Diameter: 0.7490 INCHES NOMINAL IN. 16 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.
NSN 3040-01-154-6377 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.