The Gear,spur, cataloged under National Stock Number 3020-00-609-6841, 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 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 | 3020-00-609-6841 |
| Primary Part Number | 1608057 |
| 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 | 1.656 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 2.250 INCHES BETWEEN BODY AND FLANGE IN |
| Teeth Quantity | 57 |
| Surface Treatment Document and Classification | MIL-C-16232,TYPE 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Body Style | PLAIN, SOLID |
| Flange Nominal Thickness | 0.250 INCHES IN |
| Flange Nominal Diameter | 3.625 INCHES IN |
| Bore Style | PLAIN BOTH ENDS |
| Hardness Rating | 200.0 BRINELL STANDARD MINIMUM AND 250.0 BRINELL STANDARD MAXIMUM OVERALL |
| Style Designator | FLANGED END WITH PILOT |
| Material Document and Classification | FED STD 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 2.3750 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Pilot Nominal Length | 0.250 INCHES IN |
| Nominal Outside Diameter | 2.457 INCHES IN |
| Surface Treatment | PHOSPHATE OVERALL |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 8640 OVERALL |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 0.375 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 |
|---|---|
| 1608057 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
NSN 3020-00-609-6841 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 3020-00-609-6841 has 1 manufacturer part number on file: 1608057 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 1608057: Bore Nominal Diameter: 1.656 INCHES BOTH ENDS IN; Hub Nominal Diameter: 2.250 INCHES BETWEEN BODY AND FLANGE IN; Teeth Quantity: 57; Surface Treatment Document and Classification: MIL-C-16232,TYPE 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL. 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.