The Gear,spur, cataloged under National Stock Number 3020-00-987-5461, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 26 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-987-5461 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Teeth Quantity | 72 |
| Second Step Nominal Diameter | 0.313 INCHES FIRST END IN |
| Surface Treatment Document and Classification | MIL-F-14072,FINISH E300 MIL SPEC SINGLE TREATMENT RESPONSE HUB |
| Body Style | PLAIN, SOLID |
| Nominal Distance Between Body Face and Protruding Hub End | 0.196 INCHES SECOND END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 0.546 INCHES FIRST END IN |
| First Step Nominal Length | 0.023 INCHES FIRST END IN |
| First Step Nominal Length | 0.040 INCHES SECOND END IN |
| Second Step Nominal Length | 0.030 INCHES FIRST END IN |
| Style Designator | PROTRUDING HUBS |
| Pitch Diameter | 1.5000 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| First Step Nominal Diameter | 0.437 INCHES SECOND END IN |
| First Step Nominal Diameter | 0.250 INCHES FIRST END IN |
| Hub Style Designator | 2 STEPS FIRST END |
| Hub Style Designator | 1 STEP SECOND END |
| End Nominal Length | 0.156 INCHES SECOND END IN |
| End Nominal Length | 0.493 INCHES FIRST END IN |
| Nominal Outside Diameter | 1.542 INCHES IN |
| Surface Treatment | PASSIVATE HUB |
| End Nominal Diameter | 0.157 INCHES FIRST END IN |
| End Nominal Diameter | 0.249 INCHES SECOND END IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | COPPER ALLOY HUB |
| Material | STEEL BODY |
| Face Nominal Width | 0.102 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 |
| Reference | Meaning |
|---|---|
| 553-1501-002 | 3/9 Design control — primary reference Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
NSN 3020-00-987-5461 is a Gear,spur, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-00-987-5461: Teeth Quantity: 72; Second Step Nominal Diameter: 0.313 INCHES FIRST END IN; Surface Treatment Document and Classification: MIL-F-14072,FINISH E300 MIL SPEC SINGLE TREATMENT RESPONSE HUB; Body Style: PLAIN, SOLID. 26 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.