The Gear,spur, cataloged under National Stock Number 3020-00-503-0846, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 17 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-00-503-0846 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.2500 INCHES BOTH ENDS IN |
| Backlash Designation | GRADE B |
| Teeth Quantity | 36 |
| Body Style | PLAIN, SOLID |
| Bore Style | PLAIN BOTH ENDS |
| Mounting Hole Type and Quantity | 2 THREADED TRANSVERSELY THROUGH FACE |
| Precision Classification | QUALITY NUMBER 9 |
| Style Designator | HUBLESS |
| Pitch Diameter | 0.7480 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Mounting Hole Nominal Thread Size | 0.112 INCHES TRANSVERSELY THROUGH FACE IN |
| Nominal Outside Diameter | 0.7900 INCHES IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | PLASTIC POLYAMIDE NYLON OVERALL |
| Mounting Hole Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) TRANSVERSELY THROUGH FACE |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 0.250 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 |
|---|---|
| 8060003154-2 | 3/9 Design control — primary reference Navcom Defense Electronics, Inc. |
NSN 3020-00-503-0846 is a Gear,spur, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-00-503-0846: Bore Nominal Diameter: 0.2500 INCHES BOTH ENDS IN; Backlash Designation: GRADE B; Teeth Quantity: 36; Body Style: PLAIN, SOLID. 17 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.