The Gear,helical, cataloged under National Stock Number 3020-00-355-3793, 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 Komatsu America Corp.. Government technical data includes 9 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-355-3793 |
| Primary Part Number | 50412DA |
| Item Name | Gear,helical |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Komatsu America Corp. |
| Status | ACTIVE |
| Bore Nominal Diameter | 1.6875 INCHES BOTH ENDS IN |
| Teeth Quantity | 54 |
| Tooth Direction | RIGHT |
| Style Designator | HUBLESS, RECESSED BODY |
| Pitch Diameter | 5.7500 INCHES NOMINAL IN |
| Nominal Outside Diameter | 6.0000 INCHES IN |
| Material | STEEL OVERALL |
| Attachment Method | SLOT |
| Face Nominal Width | 1.000 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 |
|---|---|
| 50412DA | Komatsu America Corp. (USA) |
| Reference | Meaning |
|---|---|
| 50412DA | 5/9 Secondary reference U.S. Government activity |
| 50412D | 5/9 Secondary reference Wabco Construction and Mining Equipment Group Indianapolis Plant an American Standard Inc Co |
| 50412DA | 3/9 Design control — primary reference Komatsu American Intl Co |
NSN 3020-00-355-3793 is a Gear,helical, manufactured by Komatsu America Corp., classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-355-3793 has 1 manufacturer part number on file: 50412DA (Komatsu America Corp.).
Key specifications for 50412DA: Bore Nominal Diameter: 1.6875 INCHES BOTH ENDS IN; Teeth Quantity: 54; Tooth Direction: RIGHT; Style Designator: HUBLESS, RECESSED BODY. 9 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.