The Gear,spur, cataloged under National Stock Number 3020-01-023-1012, 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 Breeze-Eastern Llc. Government technical data includes 20 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 | 3020-01-023-1012 |
| Primary Part Number | BL-7124 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Breeze-Eastern Llc |
| Status | ACTIVE |
| Bore Nominal Diameter | 1.0255 INCHES COUNTER BORE SECOND END IN |
| Teeth Quantity | 72 |
| Body Style | PLAIN, SOLID |
| Counterbore Nominal Diameter | 2.040 INCHES COUNTER BORE SECOND END IN |
| Bore Style | W/COUNTERBORE COUNTER BORE SECOND END |
| Nominal Distance Between Body Face and Protruding Hub End | 0.0790 INCHES FIRST END IN |
| First Step Nominal Length | 0.0170 INCHES FIRST END IN |
| Style Designator | PROTRUDING HUB |
| Material Document and Classification | QQ-B-750,COMP A FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 2.2500 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| First Step Nominal Diameter | 2.1410 INCHES FIRST END IN |
| Hub Style Designator | 1 STEP FIRST END |
| End Nominal Length | 0.062 INCHES FIRST END IN |
| Nominal Outside Diameter | 2.3105 INCHES IN |
| End Nominal Diameter | 1.750 INCHES FIRST END IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | COPPER ALLOY 510 OVERALL |
| Counterbore Nominal Depth | 0.219 INCHES COUNTER BORE SECOND END IN |
| Face Nominal Width | 0.264 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 |
|---|---|
| BL-7124 PRIMARY | Breeze-Eastern Llc (USA) |
NSN 3020-01-023-1012 is a Gear,spur, manufactured by Breeze-Eastern Llc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-023-1012 has 1 manufacturer part number on file: BL-7124 (Breeze-Eastern Llc).
Key specifications for BL-7124: Bore Nominal Diameter: 1.0255 INCHES COUNTER BORE SECOND END IN; Teeth Quantity: 72; Body Style: PLAIN, SOLID; Counterbore Nominal Diameter: 2.040 INCHES COUNTER BORE SECOND END IN. 20 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.