The Gear,internal, cataloged under National Stock Number 3020-01-316-9707, 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 28 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 | 3020-01-316-9707 |
| Primary Part Number | 2129500 |
| Item Name | Gear,internal |
| 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 | 6.322 INCHES BOTH ENDS IN |
| Teeth Quantity | 39 |
| Body Style | PLAIN, SOLID |
| Bore Style | PLAIN BOTH ENDS |
| Mounting Hole Type and Quantity | 2 PLAIN AND 8 THREADED AXIALLY THROUGH BODY FIRST END |
| Mounting Hole Type and Quantity | 2 PLAIN AND 8 THREADED AXIALLY THROUGH BODY SECOND END |
| Mounting Hole Nominal Diameter | 0.312 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Mounting Hole Nominal Diameter | 0.312 INCHES AXIALLY THROUGH BODY SECOND END IN |
| Teeth Type | SPUR |
| Nominal Overall Length | 3.187 INCHES IN |
| Style Designator | RECESSED RING |
| Pitch Diameter | 6.5000 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Mounting Hole Nominal Thread Size | 0.312 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Mounting Hole Nominal Thread Size | 0.312 INCHES AXIALLY THROUGH BODY SECOND END IN |
| Nominal Outside Diameter | 8.125 INCHES IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 1020 OVERALL |
| Bolt Hole Circle Nominal Diameter | 7.562 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Bolt Hole Circle Nominal Diameter | 7.562 INCHES AXIALLY THROUGH BODY SECOND END IN |
| Mounting Hole Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) AXIALLY THROUGH BODY FIRST END |
| Mounting Hole Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) AXIALLY THROUGH BODY SECOND END |
| Body Recess Nominal Diameter | 7.000 INCHES SECOND END IN |
| Body Recess Nominal Diameter | 7.000 INCHES FIRST END IN |
| Attachment Method | MOUNTING HOLE |
| Body Recess Nominal Depth | 0.312 INCHES FIRST END IN |
| Body Recess Nominal Depth | 0.656 INCHES SECOND END IN |
| Face Nominal Width | 2.219 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 |
|---|---|
| 2129500 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
NSN 3020-01-316-9707 is a Gear,internal, 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 3020-01-316-9707 has 1 manufacturer part number on file: 2129500 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 2129500: Bore Nominal Diameter: 6.322 INCHES BOTH ENDS IN; Teeth Quantity: 39; Body Style: PLAIN, SOLID; Bore Style: PLAIN BOTH ENDS. 28 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.