The Gear,spur, cataloged under National Stock Number 3020-01-067-3870, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Level 10 Industries, Inc. Div Level 10 Industries. Government technical data includes 22 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3020-01-067-3870 |
| Primary Part Number | 507241 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Level 10 Industries, Inc. Div Level 10 Industries |
| Status | ACTIVE |
| Bore Nominal Diameter | 1.300 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 1.000 INCHES FIRST END IN |
| Hub Nominal Diameter | 2.938 INCHES BETWEEN BODY AND FLANGE IN |
| Teeth Quantity | 32 |
| Body Style | PLAIN, SOLID |
| Flange Nominal Thickness | 0.325 INCHES IN |
| Flange Nominal Diameter | 3.500 INCHES IN |
| Bore Style | INVOLUTE SPLINE BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.312 INCHES FIRST END IN |
| Style Designator | FLANGED END |
| Pitch Diameter | 3.2000 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Features Provided | CASEHARDENED |
| Nominal Distance Between Outer Body Face and Inner Flange Face | 0.769 INCHES IN |
| Hub Style Designator | PLAIN FIRST END |
| Spline Quantity | 25 BOTH ENDS |
| Nominal Outside Diameter | 3.400 INCHES IN |
| Surface Treatment | OXIDE OVERALL |
| Pressure Angle | 14.5000 DEGREES |
| Material | STEEL OVERALL |
| Spline Pitch Diameter | 1.2500 INCHES NOMINAL BOTH ENDS IN |
| Face Nominal Width | 0.594 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 |
| Part Number | Manufacturer |
|---|---|
| 507241 PRIMARY | Level 10 Industries, Inc. Div Level 10 Industries (USA) |
| Reference | Meaning |
|---|---|
| 507241 | 5/9 Secondary reference Cooper Industries Inc Dba Cooper Tools |
NSN 3020-01-067-3870 is a Gear,spur, manufactured by Level 10 Industries, Inc. Div Level 10 Industries, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-067-3870 has 1 manufacturer part number on file: 507241 (Level 10 Industries, Inc. Div Level 10 Industries).
1 possible match (shared part number, not a government interchangeability claim): 6685-01-552-7138. Verify interchangeability with system specifications before substitution.
Key specifications for 507241: Bore Nominal Diameter: 1.300 INCHES BOTH ENDS IN; Hub Nominal Diameter: 1.000 INCHES FIRST END IN; Hub Nominal Diameter: 2.938 INCHES BETWEEN BODY AND FLANGE IN; Teeth Quantity: 32. 22 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.