The Shaft,straight, cataloged under National Stock Number 3040-01-440-5447, 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 8 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3040-01-440-5447 |
| Primary Part Number | 521-6119928 PC23 |
| Item Name | Shaft,straight |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES |
| First End Diameter | 0.6245 INCHES NOMINAL IN |
| Second End Diameter | 0.6245 INCHES NOMINAL IN |
| First End Style | PLAIN |
| End Similarity | NOT IDENTICAL |
| Second End Style | INTERNAL THREADED |
| Material | STEEL COMP 17-4PH |
| Second End Internal Thread Length | 1.375 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 |
|---|---|
| 521-6119928 PC23 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 6119928 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 3040-01-440-5447 is a Shaft,straight, manufactured by Naval Sea Systems Command, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-440-5447 has 1 manufacturer part number on file: 521-6119928 PC23 (Naval Sea Systems Command).
Key specifications for 521-6119928 PC23: Surface Finish: 32.0 MICROINCHES; First End Diameter: 0.6245 INCHES NOMINAL IN; Second End Diameter: 0.6245 INCHES NOMINAL IN; First End Style: PLAIN. 8 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.