The Gear,spur, cataloged under National Stock Number 3020-01-260-4450, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Allison Transmission Inc Dba Allison Transmission, Inc. Government technical data includes 18 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-01-260-4450 |
| Primary Part Number | 6765329 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Allison Transmission Inc Dba Allison Transmission, Inc |
| Status | ACTIVE |
| Bore Nominal Diameter | 1.327 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 1.985 INCHES FIRST END IN |
| Nominal Distance Between Body Face and Recessed Hub End | 0.183 INCHES SECOND END IN |
| Teeth Quantity | 31 |
| Body Style | WEBBED, OFFSET, WITH LIGHTENING HOLES |
| Bore Style | STRAIGHT SPLINE BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 1.065 INCHES FIRST END IN |
| Hardness Rating | 60.0 ROCKWELL C NOMINAL TEETH |
| Hardness Rating | 20.0 ROCKWELL C NOMINAL BODY |
| Style Designator | ONE PROTRUDING HUB, ONE RECESSED HUB |
| Material Document and Classification | MIL-S-13048 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 5.1667 INCHES NOMINAL IN |
| Hub Style Designator | PLAIN FIRST END |
| Spline Quantity | 22 BOTH ENDS |
| Nominal Outside Diameter | 5.504 INCHES IN |
| Pressure Angle | 25.0000 DEGREES |
| Material | STEEL COMP 8620 OVERALL |
| Face Nominal Width | 0.625 INCHES 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 |
|---|---|
| 6765329 PRIMARY | Allison Transmission Inc Dba Allison Transmission, Inc (USA) |
| Reference | Meaning |
|---|---|
| 7707492 | D/9 Drawing number reference only U S Army Tank Automotive Command Amsta-Im-Mm |
NSN 3020-01-260-4450 is a Gear,spur, manufactured by Allison Transmission Inc Dba Allison Transmission, Inc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-260-4450 has 1 manufacturer part number on file: 6765329 (Allison Transmission Inc Dba Allison Transmission, Inc).
Key specifications for 6765329: Bore Nominal Diameter: 1.327 INCHES BOTH ENDS IN; Hub Nominal Diameter: 1.985 INCHES FIRST END IN; Nominal Distance Between Body Face and Recessed Hub End: 0.183 INCHES SECOND END IN; Teeth Quantity: 31. 18 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.