The Gear Sector,spur, cataloged under National Stock Number 3020-01-050-6071, 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 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems. Government technical data includes 21 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 | 3020-01-050-6071 |
| Primary Part Number | 627-2506-001 |
| Item Name | Gear Sector,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
| Status | ACTIVE |
| Bore Nominal Diameter | 5.125 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.375 INCHES BOTH ENDS IN |
| Teeth Quantity | 58 |
| Surface Treatment Document and Classification | QQ-P-416 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Nominal Outside Radius | 5.124 INCHES IN |
| Bore Style | PLAIN BOTH ENDS |
| Mounting Hole Type and Quantity | 8 PLAIN AXIALLY THROUGH HUB FIRST END |
| Nominal Distance Between Body Face and Protruding Hub End | 0.375 INCHES BOTH ENDS IN |
| Mounting Hole Nominal Diameter | 0.250 INCHES AXIALLY THROUGH HUB FIRST END IN |
| Style Designator | PROTRUDING HUBS |
| Material Document and Classification | 66 FED STD SINGLE MATERIAL RESPONSE AND AISI/SAE 4340 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Tooth Form | STANDARD |
| Hub Style Designator | PLAIN BOTH ENDS |
| Arc Nominal Length | 10.228 INCHES IN |
| Surface Treatment | CADMIUM OVERALL |
| Pitch Radius | 4.5000 INCHES NOMINAL IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 4340 OVERALL |
| Bolt Hole Circle Nominal Diameter | 5.650 INCHES AXIALLY THROUGH HUB FIRST END IN |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 0.300 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 |
| Part Number | Manufacturer |
|---|---|
| 627-2506-001 PRIMARY | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA) |
NSN 3020-01-050-6071 is a Gear Sector,spur, manufactured by Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-050-6071 has 1 manufacturer part number on file: 627-2506-001 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems).
Key specifications for 627-2506-001: Bore Nominal Diameter: 5.125 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.375 INCHES BOTH ENDS IN; Teeth Quantity: 58; Surface Treatment Document and Classification: QQ-P-416 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 21 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.