The Extension Shaft, cataloged under National Stock Number 3040-01-579-6944, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Bae Systems Land & Armaments L.p.. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Extension Shaft |
| FSC / FSG | 3040 — Miscellaneous Power Transmission Equipment (FSG 30) |
| Manufacturers | Bae Systems Land & Armaments L.p. (CAGE 54786) |
| Parameter | Value |
|---|---|
| NSN | 3040-01-579-6944 |
| Primary Part Number | 1253441 |
| Item Name | Extension Shaft |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Bae Systems Land & Armaments L.p. |
| Status | ACTIVE |
| 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 |
|---|---|
| 1253441 PRIMARY | Bae Systems Land & Armaments L.p. (USA) |
| Reference | Meaning |
|---|---|
| 12537441-2 | 3/9 Design control — primary reference Cnh Industrial America Llc Dba Cnh America |
| 12537441 | D/9 Drawing number reference only U S Army Tank Automotive Command Amsta-Im-Mm |
NSN 3040-01-579-6944 is a Extension Shaft, manufactured by Bae Systems Land & Armaments L.p., classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-579-6944 has 1 manufacturer part number on file: 1253441 (Bae Systems Land & Armaments L.p.).
2 possible matches (shared part number, not a government interchangeability claim): 5305-01-579-7474, 3040-01-579-7825. Verify interchangeability with system specifications before substitution.
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.