The Gear,spur, cataloged under National Stock Number 3020-01-633-0673, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-01-633-0673 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.623 INCHES BOTH ENDS IN |
| Teeth Quantity | 25 |
| Body Style | PLAIN, SOLID |
| Bore Style | INVOLUTE SPLINE BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.150 INCHES FIRST END IN |
| Nominal Overall Length | 0.750 INCHES IN |
| Style Designator | PROTRUDING HUB |
| Pitch Diameter | 1.5625 INCHES NOMINAL IN |
| Spline Quantity | 16 BOTH ENDS |
| Nominal Outside Diameter | 1.6875 INCHES IN |
| Pressure Angle | 20.0 DEGREES |
| Material | STEEL COMP 4140 OVERALL |
| Spline Pitch Diameter | 0.540 INCHES MINIMUM AND 0.541 INCHES MAXIMUM BOTH ENDS IN |
| Face Nominal Width | 0.598 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 |
|---|---|
| 35546-25 | 3/9 Design control — primary reference Emerson Process Management Valve Automation, Inc. |
NSN 3020-01-633-0673 is a Gear,spur, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-01-633-0673: Bore Nominal Diameter: 0.623 INCHES BOTH ENDS IN; Teeth Quantity: 25; Body Style: PLAIN, SOLID; Bore Style: INVOLUTE SPLINE BOTH ENDS. 14 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.