The Extension Shaft, cataloged under National Stock Number 3040-01-301-9063, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3040-01-301-9063 |
| Primary Part Number | 5328398-2 |
| Item Name | Extension Shaft |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Socket Diameter | 0.635 INCHES NOMINAL IN |
| Length | 4.800 INCHES NOMINAL IN |
| Socket Depth | 1.120 INCHES NOMINAL IN |
| Style Designator | PLAIN SOCKET |
| Material Document and Classification | QQ-S-763 FED STD ALL MATERIAL RESPONSES |
| Outside Diameter | 0.875 INCHES NOMINAL IN |
| Shaft End Design | MALE AND FEMALE |
| Shaft End Diameter | 0.620 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING |
| Shoulder Length | 3.800 INCHES NOMINAL IN |
| End Type | PROCESSED END |
| Shaft End Configuration | ROUND |
| 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 |
|---|---|
| 5328398-2 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 5328398 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 3040-01-301-9063 is a Extension Shaft, manufactured by Naval Sea Systems Command, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-301-9063 has 1 manufacturer part number on file: 5328398-2 (Naval Sea Systems Command).
Key specifications for 5328398-2: Socket Diameter: 0.635 INCHES NOMINAL IN; Length: 4.800 INCHES NOMINAL IN; Socket Depth: 1.120 INCHES NOMINAL IN; Style Designator: PLAIN SOCKET. 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.