The Gear,spur, cataloged under National Stock Number 3020-00-100-4744, 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 Avionics Specialties, Inc.. Government technical data includes 26 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 | 3020-00-100-4744 |
| Primary Part Number | 956-105 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Avionics Specialties, Inc. |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.250 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 2.107 INCHES SECOND END IN |
| Hub Nominal Diameter | 2.110 INCHES FIRST END IN |
| Teeth Quantity | 104 |
| Surface Treatment Document and Classification | MIL-A-8625,TYPE 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Body Style | WEBBED, OFFSET, SOLID |
| Counterbore Nominal Diameter | 0.315 INCHES FIRST END IN |
| Bore Style | W/COUNTERBORE FIRST END |
| Mounting Hole Type and Quantity | 8 THREADED AXIALLY THROUGH BODY SECOND END |
| Nominal Distance Between Body Face and Protruding Hub End | 0.064 INCHES FIRST END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 0.040 INCHES SECOND END IN |
| Precision Classification | QUALITY NUMBER 8 |
| Style Designator | PROTRUDING HUBS |
| Material Document and Classification | QQ-A-225/6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 2.1666 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PLAIN BOTH ENDS |
| Mounting Hole Nominal Thread Size | 0.065 INCHES AND 0.067 INCHES AXIALLY THROUGH BODY SECOND END IN |
| Nominal Outside Diameter | 2.207 INCHES IN |
| Surface Treatment | ANODIZE OVERALL |
| Pressure Angle | 14.5000 DEGREES |
| Material | ALUMINUM ALLOY 2024 OVERALL |
| Counterbore Nominal Depth | 0.028 INCHES FIRST END IN |
| Mounting Hole Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) AND UNF AXIALLY THROUGH BODY SECOND END |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 0.064 INCHES IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 956-105 PRIMARY | Avionics Specialties, Inc. (USA) |
NSN 3020-00-100-4744 is a Gear,spur, manufactured by Avionics Specialties, Inc., classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-100-4744 has 1 manufacturer part number on file: 956-105 (Avionics Specialties, Inc.).
Key specifications for 956-105: Bore Nominal Diameter: 0.250 INCHES BOTH ENDS IN; Hub Nominal Diameter: 2.107 INCHES SECOND END IN; Hub Nominal Diameter: 2.110 INCHES FIRST END IN; Teeth Quantity: 104. 26 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 3020-00-100-4744 has DEMIL Code Q. 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.