The Gear,helical, cataloged under National Stock Number 3020-00-250-8091, 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 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 14 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-250-8091 |
| Primary Part Number | SP17671 |
| Item Name | Gear,helical |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Hub Nominal Diameter | 1.750 INCHES FIRST END IN |
| Teeth Quantity | 14 |
| Body Style | PLAIN, SOLID |
| Tooth Direction | LEFT |
| Bore Style | W/ 2 KEYWAYS BOTH ENDS |
| Teeth Type | SINGLE HELIX |
| Hardness Rating | 50.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Overall Length | 1.749 INCHES IN |
| Style Designator | PROTRUDING HUB |
| Pitch Diameter | 2.1670 INCHES NOMINAL IN |
| Tooth Form | STUB |
| Nominal Outside Diameter | 2.3880 INCHES IN |
| Pressure Angle | 20.0000 DEGREES |
| Face Nominal Width | 1.625 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 3020-00-250-8091 is a Gear,helical, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-250-8091 has 2 manufacturer part numbers on file: TP17671 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), SP17671 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for SP17671: Hub Nominal Diameter: 1.750 INCHES FIRST END IN; Teeth Quantity: 14; Body Style: PLAIN, SOLID; Tooth Direction: LEFT. 14 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.