The Gear,bevel, cataloged under National Stock Number 3020-01-281-5272, 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 22 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 3020-01-281-5272 |
| Primary Part Number | 6289003 |
| Item Name | Gear,bevel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Keyway Nominal Width | 0.187 INCHES SECOND END IN |
| Bore Nominal Diameter | 0.625 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 1.250 INCHES SECOND END IN |
| Teeth Quantity | 18 |
| Body Style | PLAIN, SOLID |
| Counterbore Nominal Diameter | 0.750 INCHES FIRST END IN |
| Pitch Angle | 45.0000 DEGREES |
| Tooth Direction | LEFT |
| Bore Style | W/COUNTERBORE FIRST END |
| Bore Style | W/ KEYWAY SECOND END |
| Nominal Distance Between Body Face and Protruding Hub End | 0.505 INCHES SECOND END IN |
| Teeth Type | SPIRAL |
| Nominal Overall Length | 1.021 INCHES IN |
| Style Designator | PERIPHERAL FACE, BACK HUB PROTRUDING |
| Pitch Diameter | 1.5000 INCHES NOMINAL IN |
| Hub Style Designator | PLAIN SECOND END |
| Nominal Outside Diameter | 1.620 INCHES IN |
| Nominal Distance From Bore Center to Keyway Bottom | 0.391 INCHES SECOND END IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL OVERALL |
| Counterbore Nominal Depth | 0.291 INCHES FIRST END IN |
| Face Nominal Width | 0.320 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 |
|---|---|
| 6289572 ITEM 79 | Naval Sea Systems Command (USA) |
| 0740525 | General Dynamics European, Land-Systems-Mowag Gmbh Dba Gdels (CHE) |
| 6289003 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| HLSK102Y-L | 5/1 Secondary reference Altra Industrial Motion Corp. |
| 6288934 | 5/1 Secondary reference Naval Sea Systems Command |
NSN 3020-01-281-5272 is a Gear,bevel, manufactured by Naval Sea Systems Command, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-281-5272 has 3 manufacturer part numbers on file: 6289572 ITEM 79 (Naval Sea Systems Command), 0740525 (General Dynamics European, Land-Systems-Mowag Gmbh Dba Gdels), 6289003 (Naval Sea Systems Command).
Key specifications for 6289003: Keyway Nominal Width: 0.187 INCHES SECOND END IN; Bore Nominal Diameter: 0.625 INCHES BOTH ENDS IN; Hub Nominal Diameter: 1.250 INCHES SECOND END IN; Teeth Quantity: 18. 22 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.