The Coupling,shaft,rigid, cataloged under National Stock Number 3010-00-485-3840, is classified within Federal Supply Class 3010 (Torque Converters and Speed Changers) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Curtiss-Wright Controls, Inc. Div Actuation Division. Government technical data includes 4 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 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 | 3010-00-485-3840 |
| Primary Part Number | B10256 |
| Item Name | Coupling,shaft,rigid |
| FSC / FSG | 3010 / 30 — Torque Converters and Speed Changers |
| Manufacturer | Curtiss-Wright Controls, Inc. Div Actuation Division |
| Status | ACTIVE |
| Bore Length | 0.4200 INCHES NOMINAL BOTH ENDS IN |
| Style Designator | PLAIN SLEEVE |
| Bore Shape | STRAIGHT BOTH ENDS |
| Body Material | STEEL CORROSION RESISTING |
| 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 |
|---|---|
| B10256 PRIMARY | Curtiss-Wright Controls, Inc. Div Actuation Division (USA) |
NSN 3010-00-485-3840 is a Coupling,shaft,rigid, manufactured by Curtiss-Wright Controls, Inc. Div Actuation Division, classified under FSC 3010, Torque Converters and Speed Changers. Status: active.
NSN 3010-00-485-3840 has 1 manufacturer part number on file: B10256 (Curtiss-Wright Controls, Inc. Div Actuation Division).
1 possible match (shared part number, not a government interchangeability claim): 5965-00-698-0426. Verify interchangeability with system specifications before substitution.
Key specifications for B10256: Bore Length: 0.4200 INCHES NOMINAL BOTH ENDS IN; Style Designator: PLAIN SLEEVE; Overall Length: 0.420 INCHES NOMINAL IN; Bore Shape: STRAIGHT BOTH ENDS. 4 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.