The Shaft Assembly,flexible, cataloged under National Stock Number 1680-01-218-5278, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. The manufacturer of record is Emerson Electric Co Alco Controls Div. Government technical data includes 19 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 | 1680-01-218-5278 |
| Primary Part Number | XW20067-1810 |
| Item Name | Shaft Assembly,flexible |
| FSC / FSG | 1680 / 16 — Miscellaneous Aircraft Accessories and Components |
| Manufacturer | Emerson Electric Co Alco Controls Div |
| Status | ACTIVE |
| Width Across Flats | 0.625 INCHES NOMINAL BOTH ENDS IN |
| Thread Length | 0.296 INCHES MINIMUM AND 0.306 INCHES MAXIMUM BOTH ENDS IN |
| End Connection Type | THREADED EXTERNAL BOTH ENDS |
| Thread Location | EXTERNAL BOTH ENDS |
| Core Diameter | 0.187 INCHES NOMINAL IN |
| Features Provided | SWIVEL END BOTH ENDS |
| Thread Direction | RIGHT-HAND BOTH ENDS |
| Casing Length Between Ferrules | 17.538 INCHES MINIMUM AND 17.662 INCHES MAXIMUM IN |
| Core Rotation Direction | CLOCKWISE OR COUNTERCLOCKWISE |
| Shank Outside Diameter | 0.406 INCHES NOMINAL BOTH ENDS IN |
| Core Removability | NONREMOVABLE |
| Core Overall Length | 18.100 INCHES NOMINAL IN |
| Screw Thread Series Designator | UNF BOTH ENDS |
| Thread Class | 2A BOTH ENDS A |
| Wrenching Facility Type | HEXAGON BOTH ENDS |
| Material | STEEL CORE |
| Material | ALUMINUM CASING |
| Casing Outside Diameter | 0.317 INCHES NOMINAL IN |
| End Type | SQUARE MALE BOTH ENDS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| XW20067-1810 PRIMARY | Emerson Electric Co Alco Controls Div (USA) |
NSN 1680-01-218-5278 is a Shaft Assembly,flexible, manufactured by Emerson Electric Co Alco Controls Div, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
NSN 1680-01-218-5278 has 1 manufacturer part number on file: XW20067-1810 (Emerson Electric Co Alco Controls Div).
Key specifications for XW20067-1810: Width Across Flats: 0.625 INCHES NOMINAL BOTH ENDS IN; Thread Length: 0.296 INCHES MINIMUM AND 0.306 INCHES MAXIMUM BOTH ENDS IN; End Connection Type: THREADED EXTERNAL BOTH ENDS; Overall Length: 18.490 INCHES MINIMUM AND 18.500 INCHES MAXIMUM IN. 19 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 1680-01-218-5278 has DEMIL Code B. 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.