The Coupling,shaft,rigid, cataloged under National Stock Number 3010-01-426-7891, is classified within Federal Supply Class 3010 (Torque Converters and Speed Changers) of the Mechanical Power Transmission Equipment group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3010-01-426-7891 |
| Item Name | Coupling,shaft,rigid |
| FSC / FSG | 3010 / 30 — Torque Converters and Speed Changers |
| Status | ACTIVE |
| Spline Type | INVOLUTE THROUGH BORE |
| Bore Length | 12.7500 INCHES NOMINAL THROUGH BORE IN |
| Overall Diameter | 4.500 INCHES NOMINAL IN |
| Style Designator | PLAIN SLEEVE |
| Material Document and Classification | ASTM B150 ALLOY C63200 ASSN STD SINGLE MATERIAL RESPONSE |
| Spline Major Diameter | 2.749 INCHES NOMINAL THROUGH BORE IN |
| Bore Shape | SPLINED THROUGH BORE |
| Spline Pressure Angle in Deg | 30.000 THROUGH BORE |
| Spline Quantity | 20 THROUGH BORE |
| Body Material | COPPER ALLOY |
| Bore Diameter | 2.3770 INCHES NOMINAL THROUGH BORE 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 |
|---|---|
| 6408594 | D/9 Drawing number reference only Naval Sea Systems Command |
| 211080543 | 5/9 Secondary reference Naval Sea Systems Command |
| 751-6408594 FIND 38 | 5/9 Secondary reference Naval Sea Systems Command |
| 211080543 | 3/2 Design control — primary reference U.S. Government activity |
| DF2230 3171 FN 38 | 5/9 Secondary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
NSN 3010-01-426-7891 is a Coupling,shaft,rigid, classified under FSC 3010, Torque Converters and Speed Changers. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 3010-01-426-7893, 3040-01-445-4792. Verify interchangeability with system specifications before substitution.
Key specifications for 3010-01-426-7891: Spline Type: INVOLUTE THROUGH BORE; Bore Length: 12.7500 INCHES NOMINAL THROUGH BORE IN; Overall Diameter: 4.500 INCHES NOMINAL IN; Style Designator: PLAIN SLEEVE. 11 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.