The Gear,spur, cataloged under National Stock Number 3020-00-676-9779, 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26 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-00-676-9779 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.125 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.251 INCHES SECOND END IN |
| Teeth Quantity | 180 |
| Body Style | PLAIN, SOLID |
| Bore Style | PLAIN BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.176 INCHES FIRST END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 0.022 INCHES SECOND END IN |
| First Step Nominal Length | 0.036 INCHES FIRST END IN |
| Style Designator | PROTRUDING HUBS |
| Material Document and Classification | MIL-S-7720,COMP 303SE MIL SPEC SINGLE MATERIAL RESPONSE BODY |
| Material Document and Classification | QQ-A-250/5,ALLOY ALCLAD 2024,T4 FED SPEC ALL MATERIAL RESPONSES TEETH |
| Pitch Diameter | 1.4980 INCHES MINIMUM AND 1.4990 INCHES MAXIMUM IN |
| Tooth Form | STANDARD |
| First Step Nominal Diameter | 0.312 INCHES FIRST END IN |
| Hub Style Designator | 1 STEP FIRST END |
| Hub Style Designator | PLAIN SECOND END |
| End Nominal Length | 0.141 INCHES FIRST END IN |
| Nominal Outside Diameter | 1.514 INCHES IN |
| Surface Treatment | ANODIZE TEETH |
| Surface Treatment | PASSIVATE BODY |
| End Nominal Diameter | 0.156 INCHES FIRST END IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 303SE BODY |
| Material | ALUMINUM ALLOY 2024 AND ALUMINUM ALLOY 1230 TEETH |
| Attachment Method | CLAMP |
| Face Nominal Width | 0.064 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 |
|---|---|
| 971-1115 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-00-676-9779 is a Gear,spur, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-00-676-9779: Bore Nominal Diameter: 0.125 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.251 INCHES SECOND END IN; Teeth Quantity: 180; 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.