The Gear,spur, cataloged under National Stock Number 3020-00-628-0235, 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 22 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 | 3020-00-628-0235 |
| Primary Part Number | 547-7953-002 |
| 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 |
| Hub Nominal Diameter | 0.376 INCHES BETWEEN BODY AND FLANGE IN |
| Teeth Quantity | 20 |
| Surface Treatment Document and Classification | CMC 197-117,CANADIAN MARCONI CO MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Body Style | PLAIN, SOLID |
| Flange Nominal Thickness | 0.156 INCHES IN |
| Flange Nominal Diameter | 1.438 INCHES IN |
| Mounting Hole Type and Quantity | 1 THREADED AXIALLY THROUGH FLANGE |
| Style Designator | FLANGED END |
| Material Document and Classification | QQ-S-763,CLASS 7,TYPE A FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 0.3125 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Nominal Distance Between Outer Body Face and Inner Flange Face | 0.953 INCHES IN |
| Mounting Hole Nominal Thread Size | 0.138 INCHES AXIALLY THROUGH FLANGE IN |
| Nominal Outside Diameter | 0.344 INCHES IN |
| Mounting Hole Thread Quantity Per Inch | 32 AXIALLY THROUGH FLANGE |
| Surface Treatment | PASSIVATE OVERALL |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 303 OVERALL |
| Bolt Hole Circle Nominal Diameter | 1.000 INCHES AXIALLY THROUGH FLANGE IN |
| Mounting Hole Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) AXIALLY THROUGH FLANGE |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 0.235 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 |
|---|---|
| 547-7953-002 PRIMARY | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA) |
NSN 3020-00-628-0235 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 3020-00-628-0235 has 1 manufacturer part number on file: 547-7953-002 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems).
Key specifications for 547-7953-002: Hub Nominal Diameter: 0.376 INCHES BETWEEN BODY AND FLANGE IN; Teeth Quantity: 20; Surface Treatment Document and Classification: CMC 197-117,CANADIAN MARCONI CO MFR REF SINGLE TREATMENT RESPONSE OVERALL; Body Style: PLAIN, SOLID. 22 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.