The Extension Shaft, cataloged under National Stock Number 3040-00-020-9504, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems. Government technical data includes 9 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 | 3040-00-020-9504 |
| Primary Part Number | 546-6786-002 |
| Item Name | Extension Shaft |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
| Status | ACTIVE |
| Length | 0.774 INCHES NOMINAL IN |
| Distance From Flat to Flat | 0.125 INCHES NOMINAL IN |
| Style Designator | FLATTED |
| Shaft End Design | FEMALE |
| Flatted Portion Length | 0.774 INCHES NOMINAL IN |
| Shaft End Diameter | 0.247 INCHES MINIMUM AND 0.249 INCHES MAXIMUM IN |
| Material | IRON |
| End Type | PROCESSED END |
| Shaft End Configuration | FLATTED 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 |
|---|---|
| 546-6786-002 PRIMARY | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA) |
NSN 3040-00-020-9504 is a Extension Shaft, manufactured by Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-020-9504 has 1 manufacturer part number on file: 546-6786-002 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems).
Key specifications for 546-6786-002: Length: 0.774 INCHES NOMINAL IN; Distance From Flat to Flat: 0.125 INCHES NOMINAL IN; Style Designator: FLATTED; Shaft End Design: FEMALE. 9 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.