The Extension Shaft, cataloged under National Stock Number 3040-00-540-3923, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Jenny Products, Inc. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-540-3923 |
| Primary Part Number | JP6049 |
| Item Name | Extension Shaft |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Jenny Products, Inc |
| Status | ACTIVE |
| Socket Diameter | 0.751 INCHES MINIMUM AND 0.752 INCHES MAXIMUM IN |
| Length | 8.250 INCHES NOMINAL IN |
| Socket Depth | 2.312 INCHES NOMINAL IN |
| Style Designator | PLAIN SOCKET |
| Material Document and Classification | SAE 52100 ASSN STD SINGLE MATERIAL RESPONSE |
| Outside Diameter | 1.375 INCHES NOMINAL IN |
| Shaft End Design | MALE AND FEMALE |
| Shaft End Diameter | 0.623 INCHES MINIMUM AND 0.624 INCHES MAXIMUM IN |
| Material | STEEL |
| Shoulder Length | 2.688 INCHES NOMINAL IN |
| End Type | INTEGRAL COUPLING |
| Shaft End Configuration | ROUND W/KEYWAY OR 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 |
|---|---|
| JP6049 PRIMARY | Jenny Products, Inc (USA) |
NSN 3040-00-540-3923 is a Extension Shaft, manufactured by Jenny Products, Inc, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-540-3923 has 1 manufacturer part number on file: JP6049 (Jenny Products, Inc).
Key specifications for JP6049: Socket Diameter: 0.751 INCHES MINIMUM AND 0.752 INCHES MAXIMUM IN; Length: 8.250 INCHES NOMINAL IN; Socket Depth: 2.312 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.