The Gear,helical, cataloged under National Stock Number 3020-00-779-0282, 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 Dresser, Llc. Government technical data includes 23 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-779-0282 |
| Primary Part Number | 68012A |
| Item Name | Gear,helical |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Dresser, Llc |
| Status | ACTIVE |
| Keyway Nominal Width | 0.189 INCHES BOTH ENDS IN |
| Bore Nominal Diameter | 1.500 INCHES BOTH ENDS IN |
| Helix Angle | 31.0000 DEGREES |
| Teeth Quantity | 30 |
| Body Style | PLAIN, SOLID |
| Tooth Direction | LEFT |
| Bore Style | W/ KEYWAY BOTH ENDS |
| Mounting Hole Type and Quantity | 2 PLAIN AND 2 THREADED AXIALLY THROUGH BODY FIRST END |
| Mounting Hole Nominal Diameter | 0.161 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Teeth Type | SINGLE HELIX |
| Style Designator | HUBLESS |
| Material Document and Classification | 66 FED STD SINGLE MATERIAL RESPONSE AND AISI/SAF 1141 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 2.9120 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Mounting Hole Nominal Thread Size | 0.313 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Nominal Outside Diameter | 3.066 INCHES IN |
| Nominal Distance From Bore Center to Keyway Bottom | 0.847 INCHES BOTH ENDS IN |
| Pressure Angle | 14.5000 DEGREES |
| Material | STEEL COMP 1141 OVERALL |
| Bolt Hole Circle Nominal Diameter | 2.188 INCHES AND 2.125 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Mounting Hole Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) AXIALLY THROUGH BODY FIRST END |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 0.938 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 |
|---|---|
| 68012A PRIMARY | Dresser, Llc (USA) |
NSN 3020-00-779-0282 is a Gear,helical, manufactured by Dresser, Llc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-779-0282 has 1 manufacturer part number on file: 68012A (Dresser, Llc).
Key specifications for 68012A: Keyway Nominal Width: 0.189 INCHES BOTH ENDS IN; Bore Nominal Diameter: 1.500 INCHES BOTH ENDS IN; Helix Angle: 31.0000 DEGREES; Teeth Quantity: 30. 23 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.