The Gear,helical, cataloged under National Stock Number 3020-00-966-9145, 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 18 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-00-966-9145 |
| Primary Part Number | 5116378 |
| Item Name | Gear,helical |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Rolls-Royce Solutions America Inc |
| Status | ACTIVE |
| Keyway Nominal Width | 0.158 INCHES BOTH ENDS IN |
| Bore Nominal Diameter | 1.400 INCHES BOTH ENDS IN |
| Helix Angle | 22.5104 DEGREES |
| Teeth Quantity | 39 |
| Body Style | PLAIN, SOLID |
| Tooth Direction | RIGHT |
| Bore Style | W/ KEYWAY BOTH ENDS |
| Teeth Type | SINGLE HELIX |
| Hardness Rating | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL |
| 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 | 3.0155 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Nominal Outside Diameter | 3.141 INCHES IN |
| Nominal Distance From Bore Center to Keyway Bottom | 0.784 INCHES BOTH ENDS IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 1141 OVERALL |
| Face Nominal Width | 0.760 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 |
NSN 3020-00-966-9145 is a Gear,helical, manufactured by Rolls-Royce Solutions America Inc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-966-9145 has 2 manufacturer part numbers on file: PC5116378 (Power Components (deutschland) Gmbh), 5116378 (Rolls-Royce Solutions America Inc).
Key specifications for 5116378: Keyway Nominal Width: 0.158 INCHES BOTH ENDS IN; Bore Nominal Diameter: 1.400 INCHES BOTH ENDS IN; Helix Angle: 22.5104 DEGREES; Teeth Quantity: 39. 18 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.