The Gear,bevel, cataloged under National Stock Number 3020-00-833-2178, 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 Us Army Aviation and Missile Command. Government technical data includes 20 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 | 3020-00-833-2178 |
| Primary Part Number | 9139177 |
| Item Name | Gear,bevel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Us Army Aviation and Missile Command |
| Status | ACTIVE |
| Hub Nominal Diameter | 0.500 INCHES SECOND END IN |
| Hub Nominal Diameter | 0.375 INCHES FIRST END IN |
| Teeth Quantity | 48 |
| Surface Treatment Document and Classification | MIL-STD-171,FINISH NO. 5.4.1 MIL STD SINGLE TREATMENT RESPONSE OVERALL |
| Body Style | PLAIN, SOLID |
| Pitch Angle | 45.0000 DEGREES |
| Nominal Distance Between Body Face and Protruding Hub End | 0.400 INCHES SECOND END IN |
| Precision Classification | QUALITY NUMBER 12 |
| Teeth Type | STRAIGHT |
| Nominal Overall Length | 0.562 INCHES IN |
| Style Designator | SIDE FACE, PROTRUDING HUBS |
| Material Document and Classification | QQ-S-763,COND T FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 1.5000 INCHES NOMINAL IN |
| Hub Style Designator | PINNED SECOND END |
| Hub Style Designator | PLAIN FIRST END |
| Nominal Outside Diameter | 1.542 INCHES IN |
| Surface Treatment | PASSIVATE OVERALL |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL CORROSION RESISTING OVERALL |
| Face Nominal Width | 0.188 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 |
|---|---|
| 9139177 PRIMARY | Us Army Aviation and Missile Command (USA) |
NSN 3020-00-833-2178 is a Gear,bevel, manufactured by Us Army Aviation and Missile Command, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-833-2178 has 1 manufacturer part number on file: 9139177 (Us Army Aviation and Missile Command).
Key specifications for 9139177: Hub Nominal Diameter: 0.500 INCHES SECOND END IN; Hub Nominal Diameter: 0.375 INCHES FIRST END IN; Teeth Quantity: 48; Surface Treatment Document and Classification: MIL-STD-171,FINISH NO. 5.4.1 MIL STD SINGLE TREATMENT RESPONSE OVERALL. 20 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.