The Gear,spur, cataloged under National Stock Number 3020-01-028-3570, 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 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-028-3570 |
| Primary Part Number | 2894211-1 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Bore Nominal Diameter | 12.7 MILLIMETERS COUNTER BORE SECOND END MM |
| Hub Nominal Diameter | 20.0 MILLIMETERS FIRST END MM |
| Hub Nominal Diameter | 28.6 MILLIMETERS SECOND END MM |
| Teeth Quantity | 104 |
| Surface Treatment Document and Classification | MIL-A-8625,TYPE 1,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Body Style | PLAIN, SOLID |
| Counterbore Nominal Diameter | 15.0 MILLIMETERS COUNTER BORE SECOND END MM |
| Bore Style | W/COUNTERBORE COUNTER BORE SECOND END |
| Nominal Distance Between Body Face and Protruding Hub End | 2.5 MILLIMETERS SECOND END MM |
| Nominal Distance Between Body Face and Protruding Hub End | 58.5 MILLIMETERS FIRST END MM |
| Style Designator | PROTRUDING HUBS |
| Material Document and Classification | QQ-A-225/6,T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 33.0 MILLIMETERS NOMINAL MM |
| Tooth Form | STANDARD |
| Second Groove Nominal Width | 1.5 MILLIMETERS FIRST END MM |
| Hub Style Designator | PLAIN SECOND END |
| Hub Style Designator | 2 GROOVES FIRST END |
| Nominal Outside Diameter | 35.9 MILLIMETERS MM |
| Surface Treatment | ANODIZE OVERALL |
| Nominal Distance From End to First Groove | 14.0 MILLIMETERS FIRST END MM |
| Pressure Angle | 20.0000 DEGREES |
| Material | ALUMINUM ALLOY 2024 OVERALL |
| First Groove Nominal Diameter | 16.5 MILLIMETERS FIRST END MM |
| Counterbore Nominal Depth | 19.0 MILLIMETERS COUNTER BORE SECOND END MM |
| First Groove Nominal Width | 1.5 MILLIMETERS FIRST END MM |
| Face Nominal Width | 3.0 MILLIMETERS MM |
| 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 |
|---|---|
| 2894211-1 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| 2894211 | D/9 Drawing number reference only Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
NSN 3020-01-028-3570 is a Gear,spur, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-028-3570 has 1 manufacturer part number on file: 2894211-1 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 2894211-1: Bore Nominal Diameter: 12.7 MILLIMETERS COUNTER BORE SECOND END MM; Hub Nominal Diameter: 20.0 MILLIMETERS FIRST END MM; Hub Nominal Diameter: 28.6 MILLIMETERS SECOND END MM; 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.
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.