The Extension Shaft, cataloged under National Stock Number 3040-01-502-3432, 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 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-502-3432 |
| Primary Part Number | 7244666-2 |
| Item Name | Extension Shaft |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Length | 3.500 INCHES NOMINAL IN |
| Internal Thread Length | 0.940 INCHES MINIMUM AND 1.060 INCHES MAXIMUM IN |
| Style Designator | THREADED SOCKET |
| Outside Diameter | 0.050 INCHES NOMINAL IN |
| External Thread Length | 1.000 INCHES NOMINAL IN |
| Shaft End Design | MALE AND FEMALE |
| Surface Treatment | PASSIVATE |
| Bore Diameter | 0.327 INCHES MINIMUM AND 0.337 INCHES MAXIMUM 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 |
|---|---|
| 7244666-2 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 7244666 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 3040-01-502-3432 is a Extension Shaft, manufactured by Naval Sea Systems Command, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-502-3432 has 1 manufacturer part number on file: 7244666-2 (Naval Sea Systems Command).
1 possible match (shared part number, not a government interchangeability claim): 6160-01-502-3908. Verify interchangeability with system specifications before substitution.
Key specifications for 7244666-2: Length: 3.500 INCHES NOMINAL IN; Internal Thread Length: 0.940 INCHES MINIMUM AND 1.060 INCHES MAXIMUM IN; Style Designator: THREADED SOCKET; Outside Diameter: 0.050 INCHES NOMINAL IN. 10 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.