The Extension Shaft, cataloged under National Stock Number 3040-00-025-2911, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Drs Environmental Systems Inc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-025-2911 |
| Primary Part Number | T0540A |
| Item Name | Extension Shaft |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Drs Environmental Systems Inc |
| Status | ACTIVE |
| Material | STEEL CORROSION RESISTING |
| 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 |
|---|---|
| T0540A PRIMARY | Drs Environmental Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| T0540A | 3/9 Design control — primary reference U.S. Government activity |
| T0540A | 5/2 Secondary reference U.S. Government activity |
NSN 3040-00-025-2911 is a Extension Shaft, manufactured by Drs Environmental Systems Inc, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-025-2911 has 1 manufacturer part number on file: T0540A (Drs Environmental Systems Inc).
Key specifications for T0540A: Special Features: 2.125 IN. LG; 0.252 IN. DIA. CHAMFER; 45 DEG; 0.375 IN. LARGEST OD; RECESSED 0.250 IN. DIA. BY 0.050 IN. DEEP IN; Material: STEEL CORROSION RESISTING. 1 specification is 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 3040-00-025-2911 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.