The Gear,spur, cataloged under National Stock Number 3020-00-486-8695, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 29 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-486-8695 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.561 INCHES BOTH ENDS IN |
| Teeth Quantity | 40 |
| Second Step Nominal Diameter | 1.030 INCHES FIRST END IN |
| Body Style | WEBBED, SOLID |
| Bore Style | PLAIN BOTH ENDS |
| Mounting Hole Type and Quantity | 4 PLAIN AXIALLY THROUGH BODY FIRST END |
| Nominal Distance Between Body Face and Protruding Hub End | 0.480 INCHES SECOND END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 1.365 INCHES FIRST END IN |
| First Step Nominal Length | 0.120 INCHES SECOND END IN |
| First Step Nominal Length | 0.600 INCHES FIRST END IN |
| Mounting Hole Nominal Diameter | 0.250 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Hardness Rating | 30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM HUB |
| Hardness Rating | 30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM TEETH |
| Second Step Nominal Length | 0.175 INCHES FIRST END IN |
| Style Designator | PROTRUDING HUBS |
| Material Document and Classification | FED STD 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 2.4990 INCHES MINIMUM AND 2.5000 INCHES MAXIMUM IN |
| Tooth Form | STANDARD |
| First Step Nominal Diameter | 1.090 INCHES SECOND END IN |
| First Step Nominal Diameter | 1.000 INCHES FIRST END IN |
| Hub Style Designator | 2 STEPS FIRST END |
| Hub Style Designator | 1 STEP SECOND END |
| Spline Quantity | 16 BOTH ENDS |
| End Nominal Length | 0.590 INCHES FIRST END IN |
| End Nominal Length | 0.360 INCHES SECOND END IN |
| Nominal Outside Diameter | 2.622 INCHES IN |
| End Nominal Diameter | 0.984 INCHES SECOND END IN |
| End Nominal Diameter | 0.787 INCHES FIRST END IN |
| Pressure Angle | 20.0000 DEGREES |
| 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 |
|---|---|
| 42132E13 | 5/9 Secondary reference U.S. Government activity |
| 42132-13 | 3/9 Design control — primary reference Goodrich Corporation Dba Trw Lucas Aerospace |
NSN 3020-00-486-8695 is a Gear,spur, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-00-486-8695: Bore Nominal Diameter: 0.561 INCHES BOTH ENDS IN; Teeth Quantity: 40; Second Step Nominal Diameter: 1.030 INCHES FIRST END IN; Body Style: WEBBED, SOLID. 29 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.