The Gear,internal, cataloged under National Stock Number 3020-00-486-3559, 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 Curtiss-Wright Controls, Inc. Dba Curtiss Wright Div Actuation Division. Government technical data includes 16 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 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-486-3559 |
| Primary Part Number | 177317 |
| Item Name | Gear,internal |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Curtiss-Wright Controls, Inc. Dba Curtiss Wright Div Actuation Division |
| Status | ACTIVE |
| Teeth Quantity | 63 |
| Body Style | PLAIN, SOLID |
| Flange Nominal Thickness | 0.150 INCHES IN |
| Flange Nominal Diameter | 8.000 INCHES IN |
| Mounting Hole Type and Quantity | 5 COUNTERSUNK AXIALLY THROUGH FLANGE |
| Mounting Hole Nominal Diameter | 0.443 INCHES AXIALLY THROUGH FLANGE IN |
| Teeth Type | SPUR |
| Nominal Overall Length | 1.810 INCHES IN |
| Style Designator | FLANGED RING |
| Pitch Diameter | 5.0000 INCHES NOMINAL IN |
| Tooth Form | STUB |
| Nominal Outside Diameter | 5.626 INCHES IN |
| Pressure Angle | 25.0000 DEGREES |
| Material | STEEL OVERALL |
| Bolt Hole Circle Nominal Diameter | 6.000 INCHES AXIALLY THROUGH FLANGE IN |
| Attachment Method | MOUNTING HOLE |
| 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 |
|---|---|
| 177317 PRIMARY | Curtiss-Wright Controls, Inc. Dba Curtiss Wright Div Actuation Division (USA) |
NSN 3020-00-486-3559 is a Gear,internal, manufactured by Curtiss-Wright Controls, Inc. Dba Curtiss Wright Div Actuation Division, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-486-3559 has 1 manufacturer part number on file: 177317 (Curtiss-Wright Controls, Inc. Dba Curtiss Wright Div Actuation Division).
1 possible match (shared part number, not a government interchangeability claim): 5999-01-658-1382. Verify interchangeability with system specifications before substitution.
Key specifications for 177317: Teeth Quantity: 63; Body Style: PLAIN, SOLID; Flange Nominal Thickness: 0.150 INCHES IN; Flange Nominal Diameter: 8.000 INCHES IN. 16 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.