The Gear,spur, cataloged under National Stock Number 3020-01-286-4532, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 24 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-01-286-4532 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.438 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.480 INCHES FIRST END IN |
| Hub Nominal Diameter | 1.953 INCHES SECOND END IN |
| Backlash Designation | GRADE C |
| Teeth Quantity | 99 |
| Surface Treatment Document and Classification | MIL-L-8937 MIL SPEC SINGLE TREATMENT RESPONSE TEETH |
| Surface Treatment Document and Classification | MIL-L08937 MIL SPEC SINGLE TREATMENT RESPONSE SPLINE |
| Body Style | WEBBED, OFFSET, SOLID |
| Bore Style | INVOLUTE SPLINE BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.067 INCHES SECOND END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 0.467 INCHES FIRST END IN |
| Precision Classification | QUALITY NUMBER 10 |
| Style Designator | PROTRUDING HUBS |
| Material Document and Classification | AMS5659 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 2.0625 INCHES NOMINAL IN |
| Hub Style Designator | PLAIN BOTH ENDS |
| Spline Quantity | 6 BOTH ENDS |
| Nominal Outside Diameter | 2.104 INCHES IN |
| Surface Treatment | LUBRICANT DRY FILM SPLINE |
| Surface Treatment | LUBRICANT DRY FILM TEETH |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP XM-12 OVERALL |
| Spline Pitch Diameter | 0.3750 INCHES NOMINAL BOTH ENDS IN |
| Face Nominal Width | 0.125 INCHES 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 |
|---|---|
| A1053A505 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-01-286-4532 is a Gear,spur, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-01-286-4532: Bore Nominal Diameter: 0.438 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.480 INCHES FIRST END IN; Hub Nominal Diameter: 1.953 INCHES SECOND END IN; Backlash Designation: GRADE C. 24 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 3020-01-286-4532 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.