The Gear,spur, cataloged under National Stock Number 3020-00-402-8760, 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 Fmc Corp. Government technical data includes 26 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-00-402-8760 |
| Primary Part Number | 2584146 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Fmc Corp |
| Status | ACTIVE |
| Bore Nominal Diameter | 1.500 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 2.062 INCHES FIRST END IN |
| Hub Nominal Diameter | 1.875 INCHES SECOND END IN |
| Teeth Quantity | 23 |
| Body Style | WEBBED, SOLID |
| Counterbore Nominal Diameter | 1.168 INCHES SECOND COUNTERBORE FIRST END IN |
| Counterbore Nominal Diameter | 1.654 INCHES COUNTER BORE SECOND END IN |
| Counterbore Nominal Diameter | 1.851 INCHES FIRST COUNTERBORE FIRST END IN |
| Bore Style | W/COUNTERBORE COUNTER BORE SECOND END |
| Bore Style | W/STEPPED COUNTERBORE COUNTERBORE FIRST END |
| Nominal Distance Between Body Face and Protruding Hub End | 0.375 INCHES BOTH ENDS IN |
| Hardness Rating | 28.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM HUB |
| Hardness Rating | 58.0 ROCKWELL C MINIMUM AND 64.0 ROCKWELL C MAXIMUM TEETH |
| Nominal Overall Length | 1.250 INCHES IN |
| Style Designator | PROTRUDING HUBS |
| Material Document and Classification | MIL-S-13048,3310H,8822H,9310H,8620H,4815H MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 3.8333 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PLAIN BOTH ENDS |
| Nominal Outside Diameter | 4.161 INCHES IN |
| Pressure Angle | 25.0000 DEGREES |
| Material | STEEL OVERALL |
| Counterbore Nominal Depth | 0.374 INCHES FIRST COUNTERBORE FIRST END IN |
| Counterbore Nominal Depth | 0.438 INCHES COUNTER BORE SECOND END IN |
| Counterbore Nominal Depth | 0.562 INCHES SECOND COUNTERBORE FIRST END IN |
| Face Nominal Width | 0.500 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 |
| Part Number | Manufacturer |
|---|---|
| 2584146 | Fmc Corp (USA) |
| Reference | Meaning |
|---|---|
| 2584146 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-00-402-8760 is a Gear,spur, manufactured by Fmc Corp, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-402-8760 has 1 manufacturer part number on file: 2584146 (Fmc Corp).
Key specifications for 2584146: Bore Nominal Diameter: 1.500 INCHES BOTH ENDS IN; Hub Nominal Diameter: 2.062 INCHES FIRST END IN; Hub Nominal Diameter: 1.875 INCHES SECOND END IN; Teeth Quantity: 23. 26 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 3020-00-402-8760 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.