The Coupling,shaft,flexible, cataloged under National Stock Number 3010-00-541-6691, is classified within Federal Supply Class 3010 (Torque Converters and Speed Changers) of the Mechanical Power Transmission Equipment group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3010-00-541-6691 |
| Item Name | Coupling,shaft,flexible |
| FSC / FSG | 3010 / 30 — Torque Converters and Speed Changers |
| Status | ACTIVE |
| Securing Method | THREADED HOLE(S) BOTH ENDS |
| Threaded Hole Location | BOTH ENDS: CENTERED 0.688 IN. FROM END OF HUB IN |
| Bore Length | 2.5000 INCHES NOMINAL BOTH ENDS IN |
| Design Type | SILENT CHAIN |
| Outside Diameter | 6.500 INCHES NOMINAL IN |
| Bore Shape | ROUGH STOCK BOTH ENDS |
| Threaded Hole Quantity | 1 BOTH ENDS |
| Thread Size Designator | 1/2-20 BOTH ENDS |
| Bore Diameter | 1.2500 INCHES NOMINAL BOTH ENDS IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 6CD | 3/9 Design control — primary reference Ramsey Products Corp |
NSN 3010-00-541-6691 is a Coupling,shaft,flexible, classified under FSC 3010, Torque Converters and Speed Changers. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5310-00-793-6336. Verify interchangeability with system specifications before substitution.
Key specifications for 3010-00-541-6691: Securing Method: THREADED HOLE(S) BOTH ENDS; Threaded Hole Location: BOTH ENDS: CENTERED 0.688 IN. FROM END OF HUB IN; Bore Length: 2.5000 INCHES NOMINAL BOTH ENDS IN; Design Type: SILENT CHAIN. 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.