The Gear,spur, cataloged under National Stock Number 3020-00-752-7524, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 20 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-752-7524 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.249 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.359 INCHES FIRST END IN |
| Teeth Quantity | 20 |
| Surface Treatment Document and Classification | MIL-C-13924,CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Body Style | PLAIN, SOLID |
| Bore Style | PLAIN BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.157 INCHES FIRST END IN |
| Precision Classification | QUALITY NUMBER 10 OR QUALITY NUMBER 11 |
| Hardness Rating | 26.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Overall Length | 0.375 INCHES IN |
| Style Designator | PROTRUDING HUB |
| Material Document and Classification | QQ-S-763,CLASS416 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 0.4166 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PLAIN FIRST END |
| Nominal Outside Diameter | 0.458 INCHES IN |
| Surface Treatment | OXIDE OVERALL |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 416 OVERALL |
| Face Nominal Width | 0.218 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 |
|---|---|
| 2137-339 | 5/9 Secondary reference U.S. Government activity |
| 2137-339 | 3/9 Design control — primary reference Recon/optical, Inc. |
NSN 3020-00-752-7524 is a Gear,spur, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-00-752-7524: Bore Nominal Diameter: 0.249 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.359 INCHES FIRST END IN; Teeth Quantity: 20; Surface Treatment Document and Classification: MIL-C-13924,CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL. 20 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.