The Coupling,shaft,flexible, cataloged under National Stock Number 3010-01-537-6040, is classified within Federal Supply Class 3010 (Torque Converters and Speed Changers) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Rexnord Industries, Llc Div Couplings Division. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3010-01-537-6040 |
| Primary Part Number | 40319 |
| Item Name | Coupling,shaft,flexible |
| FSC / FSG | 3010 / 30 — Torque Converters and Speed Changers |
| Manufacturer | Rexnord Industries, Llc Div Couplings Division |
| Status | ACTIVE |
| Securing Method | UNTHREADED HOLE(S) SECOND END |
| Securing Method | UNTHREADED HOLE(S) FIRST END |
| Bore Length | 1.6250 INCHES NOMINAL FIRST END IN |
| Design Type | DISK |
| Outside Diameter | 26.998 INCHES NOMINAL IN |
| Bore Shape | STRAIGHT FIRST END |
| Unthreaded Hole Quantity | 12 SECOND END |
| Unthreaded Hole Quantity | 8 FIRST END |
| Unthreaded Hole Location | FIRST END: INNER BOLT HOLE CIRLCE, 11 IN. DIAMETER; SECOND END: OUTER BOLT HOLE CIRCLE, 24.625 IN. DIAMETER IN |
| Bore Diameter | 7.5100 INCHES NOMINAL FIRST END IN |
| Furnished Items and Quantity | FLYWHEEL ADAPTER 1, FLANGE ADAPTER 1, CENTER MEMBER 1, DISK PACKS 2 |
| Insert Material | STEEL CORROSION RESISTING |
| Hole Diameter | 0.812 INCHES NOMINAL SECOND END IN |
| Hole Diameter | 1.500 INCHES MINIMUM FIRST END IN |
| 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 |
|---|---|
| 40319 PRIMARY | Rexnord Industries, Llc Div Couplings Division (USA) |
| Reference | Meaning |
|---|---|
| D040319 | D/9 Drawing number reference only Rexnord Industries, Llc Div Couplings Division |
NSN 3010-01-537-6040 is a Coupling,shaft,flexible, manufactured by Rexnord Industries, Llc Div Couplings Division, classified under FSC 3010, Torque Converters and Speed Changers. Status: active.
NSN 3010-01-537-6040 has 1 manufacturer part number on file: 40319 (Rexnord Industries, Llc Div Couplings Division).
Key specifications for 40319: Securing Method: UNTHREADED HOLE(S) SECOND END; Securing Method: UNTHREADED HOLE(S) FIRST END; Bore Length: 1.6250 INCHES NOMINAL FIRST END IN; Design Type: DISK. 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.