The Gear Sector,spur, cataloged under National Stock Number 3020-00-577-7525, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-00-577-7525 |
| Item Name | Gear Sector,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Mounting Hole Type and Quantity | 2 PLAIN AXIALLY THROUGH BODY FIRST END |
| Mounting Hole Nominal Diameter | 0.193 INCHES AND 0.378 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Tooth Form | STANDARD |
| Arc Nominal Length | 2.5300 INCHES IN |
| Surface Treatment | PAINT BODY |
| Pitch Radius | 2.5000 INCHES NOMINAL IN |
| Pressure Angle | 14.5000 DEGREES |
| Material | STEEL OVERALL |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 0.190 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 |
|---|---|
| CB57-41106-1 | 3/9 Design control — primary reference U.S. Government activity |
NSN 3020-00-577-7525 is a Gear Sector,spur, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-00-577-7525: Mounting Hole Type and Quantity: 2 PLAIN AXIALLY THROUGH BODY FIRST END; Mounting Hole Nominal Diameter: 0.193 INCHES AND 0.378 INCHES AXIALLY THROUGH BODY FIRST END IN; Tooth Form: STANDARD; Arc Nominal Length: 2.5300 INCHES IN. 10 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.