The Extension Shaft, cataloged under National Stock Number 3040-01-172-3330, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-172-3330 |
| Item Name | Extension Shaft |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Socket Diameter | 0.875 INCHES NOMINAL IN |
| Length | 3.700 INCHES NOMINAL IN |
| Socket Depth | 1.500 INCHES NOMINAL IN |
| Style Designator | PLAIN SOCKET |
| Material Document and Classification | QQ-A-225/9,COND T7351 FED SPEC SINGLE MATERIAL RESPONSE |
| Outside Diameter | 1.875 INCHES NOMINAL IN |
| Shaft End Design | MALE |
| Shaft End Diameter | 1.310 INCHES MINIMUM AND 1.311 INCHES MAXIMUM IN |
| Surface Treatment | ANODIZE |
| Material | ALUMINUM ALLOY |
| Shoulder Length | 1.750 INCHES NOMINAL IN |
| End Type | PROCESSED END |
| Shaft End Configuration | ROUND |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 75A613011-2001 | 5/9 Secondary reference The Boeing Company Div Defense |
| 75A613011-2001 | 3/9 Design control — primary reference Pioneer Machine Products Inc. |
NSN 3040-01-172-3330 is a Extension Shaft, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
Key specifications for 3040-01-172-3330: Socket Diameter: 0.875 INCHES NOMINAL IN; Length: 3.700 INCHES NOMINAL IN; Socket Depth: 1.500 INCHES NOMINAL IN; Style Designator: PLAIN SOCKET. 13 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.
NSN 3040-01-172-3330 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.