The Shaft Assembly,flexible, cataloged under National Stock Number 1680-00-010-9592, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. The manufacturer of record is Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. Government technical data includes 29 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1680-00-010-9592 |
| Primary Part Number | S6140-61631-004 |
| Item Name | Shaft Assembly,flexible |
| FSC / FSG | 1680 / 16 — Miscellaneous Aircraft Accessories and Components |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| Status | ACTIVE |
| FSC Application Data | PEDALS,CONTROL,ACFT |
| Width Across Flats | 0.375 INCHES NOMINAL FIRST END IN |
| Spline Type | INVOLUTE FIRST END |
| Cross Section Size and Location | 0.375 INCHES NOMINAL DIAMETER FIRST END IN |
| Cross Section Size and Location | 0.750 INCHES NOMINAL DIAMETER SECOND END IN |
| Core Tip Thread Class | 2B SECOND END |
| End Overall Diameter | 0.500 INCHES NOMINAL SECOND END IN |
| End Overall Diameter | 0.437 INCHES NOMINAL FIRST END IN |
| Spline Length | 0.211 INCHES NOMINAL FIRST END IN |
| Thread Depth | 0.562 INCHES NOMINAL FIRST END IN |
| Pitch Diameter | 0.250 INCHES NOMINAL FIRST END IN |
| Spline Major Diameter | 0.312 INCHES NOMINAL FIRST END IN |
| Core Tip Thread Direction | RIGHT-HAND SECOND END |
| Thread Location | INTERNAL FIRST END |
| Core Diameter | 0.187 INCHES NOMINAL IN |
| Features Provided | SWIVEL END FIRST END |
| Thread Direction | RIGHT-HAND FIRST END |
| Spline Pressure Angle in Deg | 14.5 FIRST END |
| Spline Quantity | 12 FIRST END |
| Casing Length Between Ferrules | 44.063 INCHES NOMINAL IN |
| Core Rotation Direction | COUNTERCLOCKWISE |
| Shank Outside Diameter | 0.343 INCHES NOMINAL FIRST END IN |
| Shank Outside Diameter | 0.343 INCHES NOMINAL SECOND END IN |
| Core Removability | REMOVABLE |
| Core Overall Length | 45.500 INCHES NOMINAL IN |
| Screw Thread Series Designator | UNF FIRST END |
| Surface Treatment | PASSIVATE CASING |
| Wrenching Facility Outside Diameter | 0.875 INCHES NOMINAL SECOND END IN |
| Thread Class | 2B FIRST END |
| 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 |
|---|---|
| S6140-61631-4 | Leonardo Uk Ltd (GBR) |
| S6140-61631-004 PRIMARY | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| 031218469Y04500 | S.s. White Technologies, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 9694Y0A45 | 5/9 Secondary reference White S S Co the |
| 031218469Y04500 | 5/9 Secondary reference U.S. Government activity |
| S6140-61631-4 | 5/9 Secondary reference Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| 9694Y0A45 | 5/9 Secondary reference U.S. Government activity |
NSN 1680-00-010-9592 is a Shaft Assembly,flexible, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
NSN 1680-00-010-9592 has 3 manufacturer part numbers on file: S6140-61631-4 (Leonardo Uk Ltd), S6140-61631-004 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp), 031218469Y04500 (S.s. White Technologies, Inc.).
Key specifications for S6140-61631-004: FSC Application Data: PEDALS,CONTROL,ACFT; Width Across Flats: 0.375 INCHES NOMINAL FIRST END IN; Spline Type: INVOLUTE FIRST END; Cross Section Size and Location: 0.375 INCHES NOMINAL DIAMETER FIRST END IN. 29 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.
NSN 1680-00-010-9592 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.