The Gear,spur, cataloged under National Stock Number 3020-01-191-5144, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 21 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 3020-01-191-5144 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.178 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.400 INCHES BETWEEN BODY AND FLANGE IN |
| Teeth Quantity | 49 |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Body Style | PLAIN, SOLID |
| Flange Nominal Thickness | 0.062 INCHES IN |
| Flange Nominal Diameter | 0.750 INCHES IN |
| Bore Style | PLAIN BOTH ENDS |
| Mounting Hole Type and Quantity | 2 THREADED TRANSVERSELY THROUGH FACE |
| Style Designator | FLANGED END |
| Pitch Diameter | 0.6805 INCHES NOMINAL IN |
| Tooth Form | SPECIAL |
| Nominal Distance Between Outer Body Face and Inner Flange Face | 0.213 INCHES IN |
| Mounting Hole Nominal Thread Size | 0.060 INCHES TRANSVERSELY THROUGH FACE IN |
| Nominal Outside Diameter | 0.708 INCHES IN |
| Surface Treatment | PASSIVATE OVERALL |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL OVERALL |
| Mounting Hole Thread Series Designator | UNF TRANSVERSELY THROUGH FACE |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 0.110 INCHES IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 3084213 | D/9 Drawing number reference only U.S. Government activity |
| 3084213-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-01-191-5144 is a Gear,spur, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-01-191-5144: Bore Nominal Diameter: 0.178 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.400 INCHES BETWEEN BODY AND FLANGE IN; Teeth Quantity: 49; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 21 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.
NSN 3020-01-191-5144 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.