The Shaft,shouldered, cataloged under National Stock Number 3040-01-341-0106, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-341-0106 |
| Primary Part Number | 65720-10020-102 |
| Item Name | Shaft,shouldered |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| Status | ACTIVE |
| Second End External Thread Length | 1.180 INCHES NOMINAL IN |
| Step Quantity | 7 |
| First End Diameter | 0.5620 INCHES NOMINAL IN |
| Second End Diameter | 0.5000 INCHES NOMINAL IN |
| Largest Step Diameter | 0.625 INCHES NOMINAL IN |
| First End External Thread Length | 0.125 INCHES NOMINAL IN |
| First End Style | EXTERNAL THREADED |
| End Similarity | NOT IDENTICAL |
| Second End Style | EXTERNAL THREADED |
| Material | STEEL COMP 4340 |
| 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 |
|---|---|
| 65720-10020-102 PRIMARY | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| Reference | Meaning |
|---|---|
| 65720-10020 | D/9 Drawing number reference only Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
NSN 3040-01-341-0106 is a Shaft,shouldered, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-341-0106 has 1 manufacturer part number on file: 65720-10020-102 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
2 possible matches (shared part number, not a government interchangeability claim): 4730-01-342-3434, 3010-01-342-6871. Verify interchangeability with system specifications before substitution.
Key specifications for 65720-10020-102: Second End External Thread Length: 1.180 INCHES NOMINAL IN; Step Quantity: 7; First End Diameter: 0.5620 INCHES NOMINAL IN; Second End Diameter: 0.5000 INCHES NOMINAL IN. 10 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.