The Gear,spur, cataloged under National Stock Number 3020-01-026-7431, 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26 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-01-026-7431 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.815 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.875 INCHES BOTH ENDS IN |
| Backlash Designation | GRADE C |
| Teeth Quantity | 96 |
| Body Style | PLAIN, SOLID |
| Pilot Nominal Diameter | 0.815 INCHES IN |
| Flange Nominal Thickness | 0.140 INCHES IN |
| Flange Nominal Diameter | 1.920 INCHES IN |
| Bore Style | PLAIN BOTH ENDS |
| Mounting Hole Type and Quantity | 3 THREADED TRANSVERSELY THROUGH HUB FIRST END |
| Precision Classification | QUALITY NUMBER 10 OR QUALITY NUMBER 11 |
| Style Designator | FLANGED END WITH PILOT |
| Material Document and Classification | QQ-S-763,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 0.8751 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Nominal Distance Between Outer Body Face and Inner Flange Face | 0.386 INCHES IN |
| Hub Style Designator | PLAIN BOTH ENDS |
| Mounting Hole Nominal Thread Size | 0.112 INCHES TRANSVERSELY THROUGH HUB FIRST END IN |
| Pilot Nominal Length | 0.060 INCHES IN |
| Nominal Outside Diameter | 1.534 INCHES IN |
| Surface Treatment | PASSIVATE OVERALL |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 303 OVERALL |
| Mounting Hole Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) TRANSVERSELY THROUGH HUB FIRST END |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 0.386 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 |
|---|---|
| 450522 | 3/9 Design control — primary reference U.S. Government activity |
NSN 3020-01-026-7431 is a Gear,spur, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-01-026-7431: Bore Nominal Diameter: 0.815 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.875 INCHES BOTH ENDS IN; Backlash Designation: GRADE C; Teeth Quantity: 96. 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.