The Gear,spur, cataloged under National Stock Number 3020-00-413-1772, 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29 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-413-1772 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.126 INCHES COUNTERBORE FIRST END IN |
| Backlash Designation | GRADE A |
| Teeth Quantity | 36 |
| Body Style | PLAIN, SOLID |
| Counterbore Nominal Diameter | 0.500 INCHES COUNTERBORE FIRST END IN |
| Bore Style | W/COUNTERBORE COUNTERBORE FIRST END |
| Nominal Distance Between Body Face and Protruding Hub End | 0.230 INCHES SECOND END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 0.578 INCHES FIRST END IN |
| First Step Nominal Length | 0.038 INCHES FIRST END IN |
| First Step Nominal Length | 0.038 INCHES SECOND END IN |
| Precision Classification | QUALITY NUMBER 9 |
| Style Designator | PROTRUDING HUBS |
| Material Document and Classification | FED STD 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 0.7500 INCHES NOMINAL IN |
| Tooth Form | SPECIAL |
| First Step Nominal Diameter | 0.240 INCHES SECOND END IN |
| First Step Nominal Diameter | 0.623 INCHES FIRST END IN |
| Features Provided | CASEHARDENED AND INTEGRAL KEY |
| Hub Style Designator | 1 STEP FIRST END |
| Hub Style Designator | 1 STEP SECOND END |
| End Nominal Length | 0.540 INCHES FIRST END IN |
| End Nominal Length | 0.193 INCHES SECOND END IN |
| Nominal Outside Diameter | 0.770 INCHES IN |
| Test Data Document | 81349-MIL-I-6868 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |
| End Nominal Diameter | 0.187 INCHES SECOND END IN |
| End Nominal Diameter | 0.568 INCHES FIRST END IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 8620 OVERALL |
| Counterbore Nominal Depth | 0.708 INCHES COUNTERBORE FIRST END IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 1091918 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-00-413-1772 is a Gear,spur, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-00-413-1772: Bore Nominal Diameter: 0.126 INCHES COUNTERBORE FIRST END IN; Backlash Designation: GRADE A; Teeth Quantity: 36; Body Style: PLAIN, 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.
NSN 3020-00-413-1772 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.