The Gear,spur, cataloged under National Stock Number 3020-00-423-6874, 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19 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-423-6874 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Keyway Nominal Width | 0.500 INCHES BOTH ENDS IN |
| Bore Nominal Diameter | 0.189 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 3.375 INCHES BOTH ENDS IN |
| Teeth Quantity | 40 |
| Body Style | WEBBED, SOLID |
| Bore Style | W/ KEYWAY BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.500 INCHES BOTH ENDS IN |
| Hardness Rating | 24.5 ROCKWELL C MINIMUM AND 31.8 ROCKWELL C MAXIMUM OVERALL |
| Style Designator | PROTRUDING HUBS |
| Pitch Diameter | 13.3330 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Features Provided | TAPERED KEYWAY |
| Hub Style Designator | PLAIN SECOND END |
| Hub Style Designator | PINNED FIRST END |
| Nominal Outside Diameter | 13.833 INCHES IN |
| Nominal Distance From Bore Center to Keyway Bottom | 0.344 INCHES BOTH ENDS IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL OVERALL |
| Face Nominal Width | 3.000 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 |
|---|---|
| B18-36 | C/1 Advisory reference — outside the item-of-supply concept Minnpar, Llc Dba Minnpar |
| B18-36 | 3/9 Design control — primary reference Barber-Greene Co |
NSN 3020-00-423-6874 is a Gear,spur, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-00-423-6874: Keyway Nominal Width: 0.500 INCHES BOTH ENDS IN; Bore Nominal Diameter: 0.189 INCHES BOTH ENDS IN; Hub Nominal Diameter: 3.375 INCHES BOTH ENDS IN; Teeth Quantity: 40. 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.