The Gear,spur, cataloged under National Stock Number 3020-00-528-0656, 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 10 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 | 3020-00-528-0656 |
| Primary Part Number | 505-1438-002 |
| Item Name | Gear,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 | 0.250 INCHES BOTH ENDS IN |
| Teeth Quantity | 125 |
| Body Style | PLAIN, WITH LIGHTENING HOLES |
| Style Designator | PROTRUDING HUBS |
| Pitch Diameter | 2.6040 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| First Step Nominal Diameter | 0.750 INCHES FIRST END IN |
| Surface Treatment | CHROMATE OVERALL |
| End Nominal Diameter | 0.500 INCHES FIRST END IN |
| Pressure Angle | 20.0000 DEGREES |
| 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 |
|---|---|
| 505-1438-002 PRIMARY | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA) |
NSN 3020-00-528-0656 is a Gear,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 3020-00-528-0656 has 1 manufacturer part number on file: 505-1438-002 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems).
Key specifications for 505-1438-002: Bore Nominal Diameter: 0.250 INCHES BOTH ENDS IN; Teeth Quantity: 125; Body Style: PLAIN, WITH LIGHTENING HOLES; Style Designator: PROTRUDING HUBS. 10 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.