The Gear,spur, cataloged under National Stock Number 3020-01-375-2501, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 27 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-01-375-2501 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Bore Nominal Diameter | 1.029 INCHES FIRST END IN |
| Bore Nominal Diameter | 1.292 INCHES SECOND END IN |
| Hub Nominal Diameter | 1.574 INCHES SECOND END IN |
| Teeth Quantity | 46 |
| Surface Treatment Document and Classification | MIL-STD-130E MIL SPEC ALL TREATMENT RESPONSES BODY |
| Body Style | PLAIN, SOLID |
| Bore Style | INVOLUTE SPLINE SECOND END |
| Bore Style | PLAIN FIRST END |
| Nominal Distance Between Body Face and Protruding Hub End | 0.676 INCHES SECOND END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 1.354 INCHES FIRST END IN |
| First Step Nominal Length | 0.526 INCHES FIRST END IN |
| Hardness Rating | 58.0 ROCKWELL C MINIMUM AND 62.0 ROCKWELL C MAXIMUM OVERALL |
| Style Designator | PROTRUDING HUBS |
| Material Document and Classification | AMS6265 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 2.8700 INCHES NOMINAL IN |
| First Step Nominal Diameter | 1.574 INCHES FIRST END IN |
| Hub Style Designator | 1 STEP FIRST END |
| Hub Style Designator | PLAIN SECOND END |
| Spline Quantity | 32 SECOND END |
| End Nominal Length | 1.354 INCHES FIRST END IN |
| Nominal Outside Diameter | 2.992 INCHES IN |
| Surface Treatment | CADMIUM BODY |
| End Nominal Diameter | 1.500 INCHES FIRST END IN |
| Pressure Angle | 27.0000 DEGREES |
| Material | STEEL COMP E9310 OVERALL |
| Spline Pitch Diameter | 1.3330 INCHES NOMINAL SECOND END IN |
| Face Nominal Width | 0.508 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 |
|---|---|
| 757346 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-01-375-2501 is a Gear,spur, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-01-375-2501: Bore Nominal Diameter: 1.029 INCHES FIRST END IN; Bore Nominal Diameter: 1.292 INCHES SECOND END IN; Hub Nominal Diameter: 1.574 INCHES SECOND END IN; Teeth Quantity: 46. 27 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 3020-01-375-2501 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.