The Gear,spur, cataloged under National Stock Number 3020-00-020-3164, 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 Libby Power Systems, Llc. Government technical data includes 17 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-020-3164 |
| Primary Part Number | 75-1119 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Libby Power Systems, Llc |
| Status | ACTIVE |
| Bore Nominal Diameter | 1.125 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 1.625 INCHES SECOND END IN |
| Hub Nominal Diameter | 1.625 INCHES FIRST END IN |
| Teeth Quantity | 18 |
| Body Style | PLAIN, SOLID |
| Bore Style | PLAIN BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.125 INCHES SECOND END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 0.188 INCHES FIRST END IN |
| Hardness Rating | 53.0 ROCKWELL C MINIMUM AND 56.0 ROCKWELL C MAXIMUM OVERALL |
| Style Designator | PROTRUDING HUBS |
| Pitch Diameter | 2.2500 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PLAIN BOTH ENDS |
| Nominal Outside Diameter | 2.450 INCHES IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL 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 |
| Part Number | Manufacturer |
|---|---|
| 75-1119 PRIMARY | Libby Power Systems, Llc (USA) |
| Reference | Meaning |
|---|---|
| 20011 | 5/9 Secondary reference Western Mfg Co |
NSN 3020-00-020-3164 is a Gear,spur, manufactured by Libby Power Systems, Llc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-020-3164 has 1 manufacturer part number on file: 75-1119 (Libby Power Systems, Llc).
Key specifications for 75-1119: Bore Nominal Diameter: 1.125 INCHES BOTH ENDS IN; Hub Nominal Diameter: 1.625 INCHES SECOND END IN; Hub Nominal Diameter: 1.625 INCHES FIRST END IN; Teeth Quantity: 18. 17 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.