The Gear,bevel, cataloged under National Stock Number 3020-00-229-3077, 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 Unity Manufacturing Co. Government technical data includes 18 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-229-3077 |
| Primary Part Number | 6405 |
| Item Name | Gear,bevel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Unity Manufacturing Co |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.150 INCHES COUNTER BORE SECOND END IN |
| Hub Nominal Diameter | 0.493 INCHES FIRST END IN |
| Teeth Quantity | 18 |
| Body Style | PLAIN, SOLID |
| Counterbore Nominal Diameter | 0.277 INCHES COUNTER BORE SECOND END IN |
| Pitch Angle | 56.0000 DEGREES |
| Bore Style | PARTIAL W/COUNTERBORE COUNTER BORE SECOND END |
| Nominal Distance Between Body Face and Protruding Hub End | 0.484 INCHES SECOND END IN |
| Teeth Type | STRAIGHT |
| Nominal Overall Length | 0.674 INCHES IN |
| Style Designator | PERIPHERAL FACE, BACK HUB PROTRUDING |
| Material Document and Classification | ZAMAK NO.3,FSC,78977 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 0.7500 INCHES NOMINAL IN |
| Hub Style Designator | PLAIN FIRST END |
| Nominal Outside Diameter | 0.790 INCHES IN |
| Surface Treatment | DICHROMATE OVERALL |
| Material | ZINC ALLOY OVERALL |
| Counterbore Nominal Depth | 0.125 INCHES COUNTER BORE SECOND END IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 3020-00-229-3077 is a Gear,bevel, manufactured by Unity Manufacturing Co, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-229-3077 has 2 manufacturer part numbers on file: 6405 (Unity Manufacturing Co), 014714T (Kovatch Corp.).
Key specifications for 6405: Bore Nominal Diameter: 0.150 INCHES COUNTER BORE SECOND END IN; Hub Nominal Diameter: 0.493 INCHES FIRST END IN; Teeth Quantity: 18; Body Style: PLAIN, SOLID. 18 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.