The Gear,spur, cataloged under National Stock Number 3020-01-286-0351, 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 Altra Industrial Motion Corp.. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-286-0351 |
| Primary Part Number | Y48144 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Altra Industrial Motion Corp. |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.312 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.875 INCHES FIRST END IN |
| Teeth Quantity | 144 |
| Body Style | WEBBED, WITH LIGHTENING HOLES |
| Bore Style | PLAIN BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.312 INCHES FIRST END IN |
| Style Designator | PROTRUDING HUB |
| Pitch Diameter | 3.0000 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PLAIN FIRST END |
| Nominal Outside Diameter | 3.042 INCHES IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | COPPER ALLOY OVERALL |
| Face Nominal Width | 0.125 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 |
NSN 3020-01-286-0351 is a Gear,spur, manufactured by Altra Industrial Motion Corp., classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-286-0351 has 2 manufacturer part numbers on file: Y48144 (Altra Industrial Motion Corp.), 09478 (Altra Industrial Motion Corp.).
Key specifications for Y48144: Bore Nominal Diameter: 0.312 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.875 INCHES FIRST END IN; Teeth Quantity: 144; Body Style: WEBBED, WITH LIGHTENING HOLES. 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.