The Gear,bevel, cataloged under National Stock Number 3020-00-890-0771, 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 Roller Bearing Co of America, Inc Div Pic Design. Government technical data includes 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3020-00-890-0771 |
| Primary Part Number | EK1-3-X |
| Item Name | Gear,bevel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Roller Bearing Co of America, Inc Div Pic Design |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.1873 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.2220 INCHES FIRST END IN |
| Body Style | PLAIN, SOLID |
| Bore Style | PLAIN BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.1100 INCHES FIRST END IN |
| Nominal Overall Length | 0.3120 INCHES IN |
| Style Designator | PERIPHERAL FACE, FRONT HUB PROTRUDING |
| Material Document and Classification | QQ-B-637,ALLOY 464 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Hub Style Designator | PLAIN FIRST END |
| Nominal Outside Diameter | 1.6480 INCHES IN |
| Material | COPPER ALLOY 464 OVERALL |
| Face Nominal Width | 0.2490 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 |
NSN 3020-00-890-0771 is a Gear,bevel, manufactured by Roller Bearing Co of America, Inc Div Pic Design, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-890-0771 has 2 manufacturer part numbers on file: EK1-3-X (Roller Bearing Co of America, Inc Div Pic Design), 70191-1 (L3harris Mas Inc Div L3harris Mas Inc.).
1 possible match (shared part number, not a government interchangeability claim): 5935-00-927-6745. Verify interchangeability with system specifications before substitution.
Key specifications for EK1-3-X: Bore Nominal Diameter: 0.1873 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.2220 INCHES FIRST END IN; Body Style: PLAIN, SOLID; Bore Style: PLAIN BOTH ENDS. 12 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.