The Coupling,shaft,rigid, cataloged under National Stock Number 3010-00-902-1938, is classified within Federal Supply Class 3010 (Torque Converters and Speed Changers) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Allison Transmission Inc Dba Allison Transmission, Inc. Government technical data includes 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3010-00-902-1938 |
| Primary Part Number | 6771203 |
| Item Name | Coupling,shaft,rigid |
| FSC / FSG | 3010 / 30 — Torque Converters and Speed Changers |
| Manufacturer | Allison Transmission Inc Dba Allison Transmission, Inc |
| Status | ACTIVE |
| Spline Minor Diameter | 0.5000 INCHES NOMINAL THROUGH BORE IN |
| Spline Type | INVOLUTE THROUGH BORE |
| Overall Diameter | 1.125 INCHES NOMINAL IN |
| Spline Length | 1.875 INCHES NOMINAL THROUGH BORE IN |
| Style Designator | PLAIN SLEEVE |
| Spline Major Diameter | 0.6250 INCHES NOMINAL THROUGH BORE IN |
| Bore Shape | SPLINED THROUGH BORE |
| Spline Pressure Angle in Deg | 30.000 THROUGH BORE |
| Spline Quantity | 9 THROUGH BORE |
| Body Material | STEEL |
| Surface Treatment | PHOSPHATE |
| 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 |
|---|---|
| 6771203 PRIMARY | Allison Transmission Inc Dba Allison Transmission, Inc (USA) |
| Reference | Meaning |
|---|---|
| 6771203 | 5/9 Secondary reference General Motors Corp |
NSN 3010-00-902-1938 is a Coupling,shaft,rigid, manufactured by Allison Transmission Inc Dba Allison Transmission, Inc, classified under FSC 3010, Torque Converters and Speed Changers. Status: active.
NSN 3010-00-902-1938 has 1 manufacturer part number on file: 6771203 (Allison Transmission Inc Dba Allison Transmission, Inc).
Key specifications for 6771203: Spline Minor Diameter: 0.5000 INCHES NOMINAL THROUGH BORE IN; Spline Type: INVOLUTE THROUGH BORE; Overall Diameter: 1.125 INCHES NOMINAL IN; Spline Length: 1.875 INCHES NOMINAL THROUGH BORE IN. 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.