The Gear,bevel, cataloged under National Stock Number 3020-00-569-7359, 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 Army, United States Department of the Dba Rock Island Arsenal Jmtc. Government technical data includes 14 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-569-7359 |
| Primary Part Number | 7771978 |
| Item Name | Gear,bevel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Army, United States Department of the Dba Rock Island Arsenal Jmtc |
| Status | ACTIVE |
| Hub Nominal Diameter | 1.000 INCHES FIRST END IN |
| Backlash Designation | GRADE A |
| Body Style | PLAIN, SOLID |
| Bore Style | STRAIGHT SPLINE BOTH ENDS |
| Teeth Type | STRAIGHT |
| Nominal Overall Length | 1.640 INCHES IN |
| Style Designator | PERIPHERAL FACE, FRONT HUB RECESSED, BACK HUB PROTRUDING |
| Pitch Diameter | 2.1250 INCHES NOMINAL IN |
| Spline Quantity | 6 BOTH ENDS |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL OVERALL |
| Counterbore Nominal Depth | 0.844 INCHES SECOND END IN |
| Body Recess Nominal Depth | 0.0781 INCHES FIRST END IN |
| Face Nominal Width | 0.687 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 |
|---|---|
| 7771978 PRIMARY | Army, United States Department of the Dba Rock Island Arsenal Jmtc (USA) |
NSN 3020-00-569-7359 is a Gear,bevel, manufactured by Army, United States Department of the Dba Rock Island Arsenal Jmtc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-569-7359 has 1 manufacturer part number on file: 7771978 (Army, United States Department of the Dba Rock Island Arsenal Jmtc).
Key specifications for 7771978: Hub Nominal Diameter: 1.000 INCHES FIRST END IN; Backlash Designation: GRADE A; Body Style: PLAIN, SOLID; Bore Style: STRAIGHT SPLINE BOTH ENDS. 14 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.