The Gear,spur, cataloged under National Stock Number 3020-00-352-2023, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 23 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-352-2023 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Bore Nominal Diameter | 3.126 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 3.149 INCHES FIRST END IN |
| Hub Nominal Diameter | 3.149 INCHES SECOND END IN |
| Teeth Quantity | 17 |
| Body Style | PLAIN, SOLID |
| Counterbore Nominal Diameter | 2.875 INCHES SECOND END IN |
| Bore Style | INVOLUTE SPLINE BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 1.034 INCHES SECOND END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 2.898 INCHES FIRST END IN |
| Hardness Rating | 42.0 ROCKWELL C MINIMUM AND 47.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Overall Length | 0.872 INCHES IN |
| Style Designator | PROTRUDING HUBS |
| Material Document and Classification | 66,AISI/SAE 8750 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 4.2500 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PLAIN BOTH ENDS |
| Spline Quantity | 24 BOTH ENDS |
| Nominal Outside Diameter | 4.849 INCHES IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 8750 OVERALL |
| Counterbore Nominal Depth | 0.437 INCHES SECOND END IN |
| Spline Pitch Diameter | 3.0000 INCHES NOMINAL BOTH ENDS IN |
| Face Nominal Width | 2.942 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 |
|---|---|
| 200547 | 3/9 Design control — primary reference Amca Intl Corp Unit Crane Div |
NSN 3020-00-352-2023 is a Gear,spur, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 7025-00-560-0544. Verify interchangeability with system specifications before substitution.
Key specifications for 3020-00-352-2023: Bore Nominal Diameter: 3.126 INCHES BOTH ENDS IN; Hub Nominal Diameter: 3.149 INCHES FIRST END IN; Hub Nominal Diameter: 3.149 INCHES SECOND END IN; Teeth Quantity: 17. 23 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.