The Gear,spur, cataloged under National Stock Number 3020-00-239-3834, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-239-3834 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Keyway Nominal Width | 0.127 INCHES BOTH ENDS IN |
| Bore Nominal Diameter | 0.6246 INCHES BOTH ENDS IN |
| Teeth Quantity | 11 |
| Body Style | PLAIN, SOLID |
| Bore Style | W/ KEYWAY BOTH ENDS |
| Precision Classification | QUALITY NUMBER 12 |
| Hardness Rating | 93.0 ROCKWELL B MINIMUM AND 100.0 ROCKWELL B MAXIMUM OVERALL |
| Style Designator | HUBLESS |
| Material Document and Classification | MIL-S-869 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 1.2000 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Nominal Outside Diameter | 1.400 INCHES IN |
| Nominal Distance From Bore Center to Keyway Bottom | 0.3730 INCHES BOTH ENDS IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL OVERALL |
| Face Nominal Width | 2.123 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 |
|---|---|
| 3308107 | 3/9 Design control — primary reference General Motors Corp Electro-Motive Div |
| 3308107 | 5/9 Secondary reference Hampson Enterprises Inc |
| 3308107 | C/1 Advisory reference — outside the item-of-supply concept Hatch & Kirk, Inc. |
NSN 3020-00-239-3834 is a Gear,spur, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-00-239-3834: Keyway Nominal Width: 0.127 INCHES BOTH ENDS IN; Bore Nominal Diameter: 0.6246 INCHES BOTH ENDS IN; Teeth Quantity: 11; Body Style: PLAIN, SOLID. 16 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.