The Gear,helical, cataloged under National Stock Number 3020-00-100-2785, 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 Rolls-Royce Solutions America Inc. Government technical data includes 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-00-100-2785 |
| Primary Part Number | 5139808 |
| Item Name | Gear,helical |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Rolls-Royce Solutions America Inc |
| Status | ACTIVE |
| Bore Nominal Diameter | 1.8775 INCHES BOTH ENDS IN |
| Teeth Quantity | 30 |
| Tooth Direction | LEFT |
| Bore Style | PLAIN BOTH ENDS |
| Teeth Type | SINGLE HELIX |
| 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 |
|---|---|
| 5139808 PRIMARY | Rolls-Royce Solutions America Inc (USA) |
| Reference | Meaning |
|---|---|
| 5139808-A | 5/9 Secondary reference Rolls-Royce Solutions America Inc |
NSN 3020-00-100-2785 is a Gear,helical, manufactured by Rolls-Royce Solutions America Inc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-100-2785 has 1 manufacturer part number on file: 5139808 (Rolls-Royce Solutions America Inc).
Key specifications for 5139808: Bore Nominal Diameter: 1.8775 INCHES BOTH ENDS IN; Teeth Quantity: 30; Tooth Direction: LEFT; Bore Style: PLAIN BOTH ENDS. 5 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.