The Shaft,shouldered, cataloged under National Stock Number 3040-01-178-3413, 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 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-178-3413 |
| Primary Part Number | 757-3936-004 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
| Status | ACTIVE |
| Second End Hole Diameter | 0.1280 INCHES NOMINAL IN |
| First End Tongue Thickness | 0.1840 INCHES NOMINAL IN |
| Step Quantity | 3 |
| First End Diameter | 0.3120 INCHES NOMINAL IN |
| First End Tongue Width | 0.2500 INCHES NOMINAL IN |
| First End Step Length | 1.3430 INCHES NOMINAL IN |
| Second End Diameter | 0.3120 INCHES NOMINAL IN |
| Largest Step Diameter | 0.312 INCHES NOMINAL IN |
| First End Style | TONGUE ROUNDED ENDS |
| Material Document and Classification | ASTM-A-582 ASSN STD SINGLE MATERIAL RESPONSE |
| Second End Distance From Hole Center to End | 0.1560 INCHES NOMINAL IN |
| End Similarity | NOT IDENTICAL |
| Second End Style | UNTHREADED CROSS DRILLED |
| Material | STEEL COMP 303 |
| 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 |
|---|---|
| 757-3936-004 PRIMARY | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA) |
| Reference | Meaning |
|---|---|
| 757-3936 | D/9 Drawing number reference only Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
NSN 3040-01-178-3413 is a Shaft,shouldered, 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 3040-01-178-3413 has 1 manufacturer part number on file: 757-3936-004 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems).
1 possible match (shared part number, not a government interchangeability claim): 3040-01-443-3680. Verify interchangeability with system specifications before substitution.
Key specifications for 757-3936-004: Second End Hole Diameter: 0.1280 INCHES NOMINAL IN; First End Tongue Thickness: 0.1840 INCHES NOMINAL IN; Step Quantity: 3; First End Diameter: 0.3120 INCHES NOMINAL IN. 14 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.