The Gear,helical, cataloged under National Stock Number 3020-01-182-2751, 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 Dressta North America Ltd. Government technical data includes 17 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 3020-01-182-2751 |
| Primary Part Number | 675600C1 |
| Item Name | Gear,helical |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Dressta North America Ltd |
| Status | ACTIVE |
| Bore Nominal Diameter | 1.626 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 2.400 INCHES BOTH ENDS IN |
| Teeth Quantity | 66 |
| Body Style | WEBBED, WITH LIGHTENING HOLES |
| Bore Style | PLAIN BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.028 INCHES FIRST END IN |
| Teeth Type | SINGLE HELIX |
| Hardness Rating | 57.0 ROCKWELL C MINIMUM AND 63.0 ROCKWELL C MAXIMUM OVERALL |
| Style Designator | ONE PROTRUDING HUB, ONE FLUSH HUB |
| Material Document and Classification | 66AISI/SAE4118H FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 5.6941 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PLAIN BOTH ENDS |
| Nominal Outside Diameter | 5.856 INCHES IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 4118H OVERALL |
| Face Nominal Width | 0.920 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 |
|---|---|
| 675600C1 PRIMARY | Dressta North America Ltd (USA) |
| Reference | Meaning |
|---|---|
| 675600C1 | 5/9 Secondary reference U.S. Government activity |
| 675600C1 | 5/9 Secondary reference Komatsu American Intl Co |
NSN 3020-01-182-2751 is a Gear,helical, manufactured by Dressta North America Ltd, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-182-2751 has 1 manufacturer part number on file: 675600C1 (Dressta North America Ltd).
Key specifications for 675600C1: Bore Nominal Diameter: 1.626 INCHES BOTH ENDS IN; Hub Nominal Diameter: 2.400 INCHES BOTH ENDS IN; Teeth Quantity: 66; Body Style: WEBBED, WITH LIGHTENING HOLES. 17 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.