The Gear,spur, cataloged under National Stock Number 3020-00-528-4051, 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 R. R. Templeton Corp. Dba Ducarra Aviation. Government technical data includes 25 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-00-528-4051 |
| Primary Part Number | 533818 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | R. R. Templeton Corp. Dba Ducarra Aviation |
| Status | ACTIVE |
| Bore Nominal Diameter | 1.225 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 1.562 INCHES FIRST END IN |
| Hub Nominal Diameter | 1.574 INCHES SECOND END IN |
| Teeth Quantity | 56 |
| Body Style | WEBBED, SOLID |
| Counterbore Nominal Diameter | 1.376 INCHES BOTH ENDS IN |
| Bore Style | INVOLUTE SPLINE BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.809 INCHES SECOND END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 2.241 INCHES FIRST END IN |
| Precision Classification | QUALITY NUMBER 9 |
| Hardness Rating | 25.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM HUB |
| Hardness Rating | 58.0 ROCKWELL C MINIMUM AND 62.0 ROCKWELL C MAXIMUM TEETH |
| Nominal Overall Length | 3.610 INCHES IN |
| Style Designator | PROTRUDING HUBS |
| Material Document and Classification | AMS6272 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 5.6000 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PLAIN BOTH ENDS |
| Spline Quantity | 24 BOTH ENDS |
| Nominal Outside Diameter | 5.765 INCHES IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL OVERALL |
| Counterbore Nominal Depth | 1.880 INCHES BOTH ENDS IN |
| Spline Pitch Diameter | 1.2000 INCHES NOMINAL BOTH ENDS IN |
| Face Nominal Width | 0.560 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 |
|---|---|
| 533818 PRIMARY | R. R. Templeton Corp. Dba Ducarra Aviation (USA) |
| Reference | Meaning |
|---|---|
| 533818 | 5/9 Secondary reference Teledyne Industries Inc Teledyne Power Systems Div |
NSN 3020-00-528-4051 is a Gear,spur, manufactured by R. R. Templeton Corp. Dba Ducarra Aviation, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-528-4051 has 1 manufacturer part number on file: 533818 (R. R. Templeton Corp. Dba Ducarra Aviation).
Key specifications for 533818: Bore Nominal Diameter: 1.225 INCHES BOTH ENDS IN; Hub Nominal Diameter: 1.562 INCHES FIRST END IN; Hub Nominal Diameter: 1.574 INCHES SECOND END IN; Teeth Quantity: 56. 25 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.