The Gear,spur, cataloged under National Stock Number 3020-00-593-7688, 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 27 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 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 | 3020-00-593-7688 |
| Primary Part Number | 887204 |
| 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 | 0.6249 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 1.062 INCHES SECOND END IN |
| Teeth Quantity | 82 |
| Body Style | PLAIN, WITH LIGHTENING HOLES |
| Bore Style | PLAIN BOTH ENDS |
| Mounting Hole Type and Quantity | 3 THREADED AXIALLY THROUGH BODY FIRST END |
| Nominal Distance Between Body Face and Protruding Hub End | 0.094 INCHES SECOND END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 1.079 INCHES FIRST END IN |
| First Step Nominal Length | 0.438 INCHES FIRST END IN |
| Precision Classification | QUALITY NUMBER 4 |
| Style Designator | PROTRUDING HUBS |
| Pitch Diameter | 2.5625 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| First Step Nominal Diameter | 2.188 INCHES FIRST END IN |
| Hub Style Designator | 1 STEP FIRST END |
| Hub Style Designator | PLAIN SECOND END |
| Mounting Hole Nominal Thread Size | 0.164 INCHES AXIALLY THROUGH BODY FIRST END IN |
| End Nominal Length | 0.568 INCHES FIRST END IN |
| Nominal Outside Diameter | 2.6225 INCHES IN |
| Surface Treatment | PASSIVATE OVERALL |
| End Nominal Diameter | 0.8748 INCHES FIRST END IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 416 OVERALL |
| Bolt Hole Circle Nominal Diameter | 1.750 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Mounting Hole Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) AXIALLY THROUGH BODY FIRST END |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 0.188 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 |
|---|---|
| 887204 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
NSN 3020-00-593-7688 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 3020-00-593-7688 has 1 manufacturer part number on file: 887204 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
1 possible match (shared part number, not a government interchangeability claim): 3040-01-378-2279. Verify interchangeability with system specifications before substitution.
Key specifications for 887204: Bore Nominal Diameter: 0.6249 INCHES BOTH ENDS IN; Hub Nominal Diameter: 1.062 INCHES SECOND END IN; Teeth Quantity: 82; Body Style: PLAIN, WITH LIGHTENING HOLES. 27 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.