The Coupling Half,shaft, cataloged under National Stock Number 3010-00-320-0581, is classified within Federal Supply Class 3010 (Torque Converters and Speed Changers) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3010-00-320-0581 |
| Primary Part Number | 865509 |
| Item Name | Coupling Half,shaft |
| FSC / FSG | 3010 / 30 — Torque Converters and Speed Changers |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Bore Length | 0.6360 INCHES NOMINAL IN |
| Body Style | 1 PERIPHERAL KEYWAY, THROUGH BORE |
| Outside Diameter | 1.120 INCHES NOMINAL IN |
| Bore Shape | STRAIGHT |
| Bore Diameter | 0.2037 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 3010-00-320-0581 is a Coupling Half,shaft, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 3010, Torque Converters and Speed Changers. Status: active.
NSN 3010-00-320-0581 has 2 manufacturer part numbers on file: 865509 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 865509 (Lockheed Martin Librascope Corporation).
Key specifications for 865509: Bore Length: 0.6360 INCHES NOMINAL IN; Body Style: 1 PERIPHERAL KEYWAY, THROUGH BORE; Overall Length: 0.636 INCHES NOMINAL IN; Outside Diameter: 1.120 INCHES NOMINAL IN. 6 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.