The Gear Sector,spur, cataloged under National Stock Number 3020-01-183-1600, 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 25 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-183-1600 |
| Primary Part Number | 2527720 |
| Item Name | Gear Sector,spur |
| 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 |
| Bore Nominal Diameter | 1.468 INCHES COUNTERBORE FIRST END IN |
| Teeth Quantity | 4 |
| Second Step Nominal Diameter | 1.875 INCHES FIRST END IN |
| Nominal Outside Radius | 1.200 INCHES IN |
| Counterbore Nominal Diameter | 1.750 INCHES COUNTERBORE FIRST END IN |
| Bore Style | W/COUNTERBORE BOTH ENDS |
| Mounting Hole Type and Quantity | 6 COUNTERBORED AXIALLY THROUGH FLANGE |
| Nominal Distance Between Body Face and Protruding Hub End | 1.250 INCHES FIRST END IN |
| First Step Nominal Length | 0.375 INCHES FIRST END IN |
| Mounting Hole Nominal Diameter | 0.281 INCHES AXIALLY THROUGH FLANGE IN |
| Second Step Nominal Length | 0.687 INCHES FIRST END IN |
| Style Designator | PROTRUDING HUB |
| Material Document and Classification | AISI 1144 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| First Step Nominal Diameter | 4.224 INCHES FIRST END IN |
| Hub Style Designator | 2 STEPS FIRST END |
| End Nominal Length | 0.188 INCHES FIRST END IN |
| Arc Nominal Length | 1.257 INCHES IN |
| Pitch Radius | 1.1000 INCHES NOMINAL IN |
| End Nominal Diameter | 1.850 INCHES FIRST END IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 1144 OVERALL |
| Bolt Hole Circle Nominal Diameter | 2.937 INCHES AXIALLY THROUGH FLANGE IN |
| Counterbore Nominal Depth | 0.047 INCHES COUNTERBORE FIRST END IN |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 0.625 INCHES IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 2527720 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
NSN 3020-01-183-1600 is a Gear Sector,spur, 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 3020-01-183-1600 has 1 manufacturer part number on file: 2527720 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 2527720: Bore Nominal Diameter: 1.468 INCHES COUNTERBORE FIRST END IN; Teeth Quantity: 4; Second Step Nominal Diameter: 1.875 INCHES FIRST END IN; Nominal Outside Radius: 1.200 INCHES IN. 25 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.
NSN 3020-01-183-1600 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.