The Gear,helical, cataloged under National Stock Number 3020-00-504-7586, 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 Telemechanics Inc. Government technical data includes 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-00-504-7586 |
| Primary Part Number | 197783 |
| Item Name | Gear,helical |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Telemechanics Inc |
| Status | ACTIVE |
| Teeth Quantity | 5959 |
| Teeth Type | SINGLE HELIXSINGLE HELIX |
| Style Designator | PROTRUDING HUBPROTRUDING HUB |
| Nominal Outside Diameter | 1.8750 INCHES1.8750 INCHES IN |
| Material | PLASTIC POLYAMIDE NYLON BODY |
| Material | STEEL HUB |
| 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 |
|---|---|
| 197783 PRIMARY | Telemechanics Inc (USA) |
| Reference | Meaning |
|---|---|
| 197783 | 5/9 Secondary reference American Telephone and Telegraph Co |
NSN 3020-00-504-7586 is a Gear,helical, manufactured by Telemechanics Inc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-504-7586 has 1 manufacturer part number on file: 197783 (Telemechanics Inc).
Key specifications for 197783: Teeth Quantity: 5959; Teeth Type: SINGLE HELIXSINGLE HELIX; Style Designator: PROTRUDING HUBPROTRUDING HUB; Nominal Outside Diameter: 1.8750 INCHES1.8750 INCHES IN. 6 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.