The Gear,spur, cataloged under National Stock Number 3020-00-320-9019, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 18 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 3020-00-320-9019 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Keyway Nominal Width | 0.1895 INCHES BOTH ENDS IN |
| Bore Nominal Diameter | 0.7864 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 1.125 INCHES FIRST END IN |
| Teeth Quantity | 70 |
| Body Style | PLAIN, SOLID |
| Bore Style | W/ KEYWAY BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.1875 INCHES FIRST END IN |
| Hardness Rating | 245.0 BRINELL STANDARD MINIMUM AND 275.0 BRINELL STANDARD MAXIMUM OVERALL |
| Style Designator | PROTRUDING HUB |
| Material Document and Classification | 66,AISI/SAE 4145H FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 7.0000 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PLAIN FIRST END |
| Nominal Outside Diameter | 7.199 INCHES IN |
| Nominal Distance From Bore Center to Keyway Bottom | 0.4932 INCHES BOTH ENDS IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL OVERALL |
| Face Nominal Width | 1.250 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 |
|---|---|
| AM86037 | 5/9 Secondary reference Lufkin Industries, Inc. Dba Power Transmission |
| AM086037 | 3/9 Design control — primary reference Lufkin Industries, Inc. Dba Power Transmission |
NSN 3020-00-320-9019 is a Gear,spur, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-00-320-9019: Keyway Nominal Width: 0.1895 INCHES BOTH ENDS IN; Bore Nominal Diameter: 0.7864 INCHES BOTH ENDS IN; Hub Nominal Diameter: 1.125 INCHES FIRST END IN; Teeth Quantity: 70. 18 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.