The Gear,spur, cataloged under National Stock Number 3020-01-023-1011, 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14 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-023-1011 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.854 INCHES BOTH ENDS IN |
| Teeth Quantity | 19 |
| Body Style | PLAIN, SOLID |
| Bore Style | STRAIGHT SPLINE BOTH ENDS |
| Style Designator | HUBLESS |
| Material Document and Classification | MIL-S-20166,TYPE U,GRADE MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 2.3750 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Spline Quantity | 10 BOTH ENDS |
| Nominal Outside Diameter | 2.625 INCHES IN |
| Surface Treatment | OXIDE OVERALL |
| Pressure Angle | 14.5000 DEGREES |
| Material | STEEL COMP 1022 OVERALL |
| Face Nominal Width | 0.750 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 |
|---|---|
| 75791-27X3PC7 | 5/9 Secondary reference U.S. Government activity |
| 73791-27X3PC7 | 3/2 Design control — primary reference U.S. Government activity |
| 1955783 | D/9 Drawing number reference only U.S. Government activity |
NSN 3020-01-023-1011 is a Gear,spur, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 3040-01-023-1158, 3020-01-023-2855. Verify interchangeability with system specifications before substitution.
Key specifications for 3020-01-023-1011: Bore Nominal Diameter: 0.854 INCHES BOTH ENDS IN; Teeth Quantity: 19; Body Style: PLAIN, SOLID; Bore Style: STRAIGHT 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.