The Shaft,shouldered, cataloged under National Stock Number 3040-01-388-6158, 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 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-388-6158 |
| Primary Part Number | 625-6732100 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Second End Hole Diameter | 0.0630 INCHES NOMINAL IN |
| Step Quantity | 3 |
| First End Diameter | 0.2500 INCHES NOMINAL IN |
| Second End Diameter | 0.3090 INCHES MINIMUM AND 0.3110 INCHES MAXIMUM IN |
| Largest Step Diameter | 0.500 INCHES NOMINAL IN |
| First End External Thread Length | 0.3750 INCHES NOMINAL IN |
| First End Style | EXTERNAL THREADED |
| Material Document and Classification | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE |
| Second End Distance From Hole Center to End | 0.1250 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Style | UNTHREADED CROSS DRILLED |
| Material | STEEL COMP 304 |
| 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 |
|---|---|
| 625-6732100 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 625-6732100 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 3040-01-388-6158 is a Shaft,shouldered, manufactured by Naval Sea Systems Command, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-388-6158 has 1 manufacturer part number on file: 625-6732100 (Naval Sea Systems Command).
Key specifications for 625-6732100: Second End Hole Diameter: 0.0630 INCHES NOMINAL IN; Step Quantity: 3; First End Diameter: 0.2500 INCHES NOMINAL IN; Second End Diameter: 0.3090 INCHES MINIMUM AND 0.3110 INCHES MAXIMUM 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.