The Gear,helical, cataloged under National Stock Number 3020-01-282-0175, 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 11 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-282-0175 |
| Primary Part Number | T211434 |
| Item Name | Gear,helical |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Fairbanks Morse, Llc |
| Status | ACTIVE |
| Bore Nominal Diameter | 1.723 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 3.500 INCHES FIRST END IN |
| Teeth Quantity | 12 |
| Body Style | PLAIN, SOLID |
| Tooth Direction | RIGHT |
| Bore Style | W/ KEYWAY BOTH ENDS |
| Style Designator | PROTRUDING HUB |
| Nominal Outside Diameter | 6.500 INCHES IN |
| Nominal Distance From Bore Center to Keyway Bottom | 1.000 INCHES BOTH ENDS IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL 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 |
|---|---|
| T211434 PRIMARY | Fairbanks Morse, Llc (USA) |
| Reference | Meaning |
|---|---|
| T211434 | 3/9 Design control — primary reference U.S. Government activity |
| TO15089 PC2 | 5/9 Secondary reference U.S. Government activity |
NSN 3020-01-282-0175 is a Gear,helical, manufactured by Fairbanks Morse, Llc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-282-0175 has 1 manufacturer part number on file: T211434 (Fairbanks Morse, Llc).
Key specifications for T211434: Bore Nominal Diameter: 1.723 INCHES BOTH ENDS IN; Hub Nominal Diameter: 3.500 INCHES FIRST END IN; Teeth Quantity: 12; Body Style: PLAIN, SOLID. 11 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.