The Extension Shaft, cataloged under National Stock Number 3040-01-623-8569, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 11 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 | 3040-01-623-8569 |
| Primary Part Number | 12500631 |
| Item Name | Extension Shaft |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Socket Diameter | 0.306 INCHES NOMINAL IN |
| Length | 2.50 INCHES NOMINAL IN |
| Socket Depth | 0.55 INCHES NOMINAL IN |
| Style Designator | PLAIN SOCKET |
| Outside Diameter | 0.70 INCHES NOMINAL IN |
| Shaft End Design | MALE |
| Shaft End Diameter | 0.190 INCHES NOMINAL IN |
| Material | STEEL |
| Shoulder Length | 0.55 INCHES NOMINAL IN |
| End Type | PROCESSED END |
| Shaft End Configuration | ROUND |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 12500631 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 3040-01-623-8569 is a Extension Shaft, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-623-8569 has 1 manufacturer part number on file: 12500631 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 12500631: Socket Diameter: 0.306 INCHES NOMINAL IN; Length: 2.50 INCHES NOMINAL IN; Socket Depth: 0.55 INCHES NOMINAL IN; Style Designator: PLAIN SOCKET. 11 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 3040-01-623-8569 has DEMIL Code Q. 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.