The Gear,bevel, cataloged under National Stock Number 3020-01-375-3710, 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 11 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-375-3710 |
| Primary Part Number | 5599447-2 |
| Item Name | Gear,bevel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Keyway Nominal Width | 0.127 INCHES BOTH ENDS IN |
| Bore Nominal Diameter | 0.625 INCHES BOTH ENDS IN |
| Body Style | PLAIN, SOLID |
| Counterbore Nominal Diameter | 0.900 INCHES COUNTERBORE FIRST END IN |
| Bore Style | W/COUNTERBORE COUNTERBORE FIRST END |
| Bore Style | W/ KEYWAY BOTH ENDS |
| Teeth Type | STRAIGHT |
| Style Designator | PERIPHERAL FACE, BACK HUB PROTRUDING |
| Hub Style Designator | PLAIN SECOND END |
| Nominal Distance From Bore Center to Keyway Bottom | 0.370 INCHES BOTH ENDS IN |
| Surface Treatment | NICKEL 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 |
|---|---|
| 5599447-2 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 5599447 | D/9 Drawing number reference only Naval Sea Systems Command |
| 5599447-2 | 5/1 Secondary reference Lockheed Martin Corporation Div Rotary and Mission Systems |
NSN 3020-01-375-3710 is a Gear,bevel, manufactured by Naval Sea Systems Command, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-375-3710 has 1 manufacturer part number on file: 5599447-2 (Naval Sea Systems Command).
Key specifications for 5599447-2: Keyway Nominal Width: 0.127 INCHES BOTH ENDS IN; Bore Nominal Diameter: 0.625 INCHES BOTH ENDS IN; Body Style: PLAIN, SOLID; Counterbore Nominal Diameter: 0.900 INCHES COUNTERBORE FIRST END IN. 11 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.