The Gear,helical, cataloged under National Stock Number 3020-00-618-2144, 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 Fairbanks Morse, Llc. Government technical data includes 16 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-00-618-2144 |
| Primary Part Number | NLA126 |
| Item Name | Gear,helical |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Fairbanks Morse, Llc |
| Status | ACTIVE |
| Keyway Nominal Width | 0.252 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 2.000 INCHES SECOND END IN |
| Hub Nominal Diameter | 2.000 INCHES FIRST END IN |
| Teeth Quantity | 25 |
| Body Style | WEBBED, OFFSET, WITH LIGHTENING HOLES |
| Tooth Direction | LEFT |
| Nominal Distance Between Body Face and Protruding Hub End | 0.188 INCHES FIRST END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 0.094 INCHES SECOND END IN |
| Teeth Type | SINGLE HELIX |
| Nominal Overall Length | 0.781 INCHES IN |
| Style Designator | PROTRUDING HUBS |
| Pitch Diameter | 4.1057 INCHES MINIMUM AND 4.1067 INCHES MAXIMUM IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PLAIN BOTH ENDS |
| Pressure Angle | 14.5000 DEGREES |
| Material | ALUMINUM ALLOY OVERALL |
| 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 |
|---|---|
| NLA126 PRIMARY | Fairbanks Morse, Llc (USA) |
| Reference | Meaning |
|---|---|
| NLA126 | 3/9 Design control — primary reference U.S. Government activity |
NSN 3020-00-618-2144 is a Gear,helical, manufactured by Fairbanks Morse, Llc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-618-2144 has 1 manufacturer part number on file: NLA126 (Fairbanks Morse, Llc).
Key specifications for NLA126: Keyway Nominal Width: 0.252 INCHES BOTH ENDS IN; Hub Nominal Diameter: 2.000 INCHES SECOND END IN; Hub Nominal Diameter: 2.000 INCHES FIRST END IN; Teeth Quantity: 25. 16 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.