The Gear,spur, cataloged under National Stock Number 3020-00-903-9576, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 19 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3020-00-903-9576 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.219 INCHES BOTH ENDS IN |
| Backlash Designation | GRADE C |
| Teeth Quantity | 48 |
| Body Style | PLAIN, SOLID |
| Bore Style | PLAIN BOTH ENDS |
| Mounting Hole Type and Quantity | 3 PLAIN AXIALLY THROUGH BODY FIRST END |
| Precision Classification | QUALITY NUMBER 10 |
| Mounting Hole Nominal Diameter | 0.067 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Style Designator | HUBLESS |
| Material Document and Classification | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 0.5000 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Nominal Outside Diameter | 0.521 INCHES IN |
| Surface Treatment | PASSIVATE OVERALL |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 302 OVERALL |
| Bolt Hole Circle Nominal Diameter | 0.344 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 0.082 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 |
|---|---|
| 327-120 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-00-903-9576 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): 5325-01-313-5962. Verify interchangeability with system specifications before substitution.
Key specifications for 3020-00-903-9576: Bore Nominal Diameter: 0.219 INCHES BOTH ENDS IN; Backlash Designation: GRADE C; Teeth Quantity: 48; Body Style: PLAIN, SOLID. 19 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.