The Gear,bevel, cataloged under National Stock Number 3020-01-378-6036, 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 Naval Sea Systems Command. Government technical data includes 19 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3020-01-378-6036 |
| Primary Part Number | 6405258-196 |
| Item Name | Gear,bevel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Keyway Nominal Width | 0.313 INCHES BOTH ENDS IN |
| Bore Nominal Diameter | 2.063 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 2.750 INCHES FIRST END IN |
| Teeth Quantity | 24 |
| Body Style | PLAIN, SOLID |
| Pitch Angle | 45.0000 DEGREES |
| Tooth Direction | LEFT |
| Bore Style | W/ KEYWAY BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.190 INCHES FIRST END IN |
| Teeth Type | STRAIGHT |
| Nominal Overall Length | 1.488 INCHES IN |
| Style Designator | PERIPHERAL FACE, BACK HUB PROTRUDING |
| Material Document and Classification | MIL-S-5000 COND C-2 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 4.0000 INCHES NOMINAL IN |
| Hub Style Designator | PLAIN FIRST END |
| Nominal Outside Diameter | 4.219 INCHES IN |
| Nominal Distance From Bore Center to Keyway Bottom | 1.178 INCHES BOTH ENDS IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL OVERALL |
| 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 |
|---|---|
| 6405258-196 PRIMARY | Naval Sea Systems Command (USA) |
| 752-6405258-196 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 6405258 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 3020-01-378-6036 is a Gear,bevel, manufactured by Naval Sea Systems Command, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-378-6036 has 2 manufacturer part numbers on file: 6405258-196 (Naval Sea Systems Command), 752-6405258-196 (Naval Sea Systems Command).
1 possible match (shared part number, not a government interchangeability claim): 3040-01-383-5696. Verify interchangeability with system specifications before substitution.
Key specifications for 6405258-196: Keyway Nominal Width: 0.313 INCHES BOTH ENDS IN; Bore Nominal Diameter: 2.063 INCHES BOTH ENDS IN; Hub Nominal Diameter: 2.750 INCHES FIRST END IN; Teeth Quantity: 24. 19 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.