The Gear,spur, cataloged under National Stock Number 3020-00-313-8105, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 23 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-00-313-8105 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Backlash Designation | GRADE B |
| Teeth Quantity | 74 |
| Body Style | PLAIN, SOLID |
| Nominal Distance Between Body Face and Protruding Hub End | 0.157 INCHES SECOND END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 0.406 INCHES FIRST END IN |
| First Step Nominal Length | 0.016 INCHES SECOND END IN |
| First Step Nominal Length | 0.015 INCHES FIRST END IN |
| Precision Classification | QUALITY NUMBER 10 |
| Style Designator | PROTRUDING HUBS |
| Pitch Diameter | 0.7708 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| First Step Nominal Diameter | 0.1875 INCHES SECOND END IN |
| First Step Nominal Diameter | 0.250 INCHES FIRST END IN |
| Hub Style Designator | 1 STEP BOTH ENDS |
| End Nominal Length | 0.391 INCHES FIRST END IN |
| End Nominal Length | 0.141 INCHES SECOND END IN |
| Nominal Outside Diameter | 0.7916 INCHES IN |
| Surface Treatment | PASSIVATE OVERALL |
| End Nominal Diameter | 0.1247 INCHES SECOND END IN |
| End Nominal Diameter | 0.1872 INCHES FIRST END IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL OVERALL |
| Face Nominal Width | 0.125 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 |
|---|---|
| 1391-2032 | 3/9 Design control — primary reference Recon/optical, Inc. |
NSN 3020-00-313-8105 is a Gear,spur, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-00-313-8105: Backlash Designation: GRADE B; Teeth Quantity: 74; Body Style: PLAIN, SOLID; Nominal Distance Between Body Face and Protruding Hub End: 0.157 INCHES SECOND END IN. 23 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.