The Gear,spur, cataloged under National Stock Number 3020-01-079-0520, 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 12 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-079-0520 |
| Primary Part Number | 3017087 |
| 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 |
| Hub Nominal Diameter | 1.375 INCHES SECOND END IN |
| Hub Nominal Diameter | 1.750 INCHES FIRST END IN |
| Teeth Quantity | 26 |
| Body Style | PLAIN, SOLID |
| Nominal Distance Between Body Face and Protruding Hub End | 1.250 INCHES FIRST END IN |
| Nominal Overall Length | 2.750 INCHES IN |
| Style Designator | PROTRUDING HUBS |
| Pitch Diameter | 3.2500 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PLAIN BOTH ENDS |
| Pressure Angle | 20.0000 DEGREES |
| Face Nominal Width | 1.000 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 |
|---|---|
| 3224073 ITEM 11 | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 3017087 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
NSN 3020-01-079-0520 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 3020-01-079-0520 has 2 manufacturer part numbers on file: 3224073 ITEM 11 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 3017087 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
1 possible match (shared part number, not a government interchangeability claim): 5340-01-164-6467. Verify interchangeability with system specifications before substitution.
Key specifications for 3017087: Hub Nominal Diameter: 1.375 INCHES SECOND END IN; Hub Nominal Diameter: 1.750 INCHES FIRST END IN; Teeth Quantity: 26; Body Style: PLAIN, SOLID. 12 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.