The Gear,antibacklash,spur, cataloged under National Stock Number 3020-00-563-3835, 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 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 | 3020-00-563-3835 |
| Primary Part Number | 8171740 |
| Item Name | Gear,antibacklash,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Us Army Aviation and Missile Command |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.750 INCHES BOTH ENDS IN |
| Teeth Quantity | 63 |
| Surface Treatment Document and Classification | MIL-STD-171,5.4 MIL STD SINGLE TREATMENT RESPONSE HUB |
| Bore Style | PLAIN BOTH ENDS |
| Precision Classification | QUALITY NUMBER 8 OR QUALITY NUMBER 12 |
| Hardness Rating | 25.0 ROCKWELL C NOMINAL HUB |
| Style Designator | PROTRUDING HUBS |
| Material Document and Classification | QQ-A-225/6 FED SPEC SINGLE MATERIAL RESPONSE BODY |
| Material Document and Classification | QQ-S-763,CL 6,TA FED SPEC SINGLE MATERIAL RESPONSE HUB |
| Tooth Form | STANDARD |
| Surface Treatment | PASSIVATE HUB |
| Pressure Angle | 14.5000 DEGREES |
| Material | ALUMINUM ALLOY 2024 BODY |
| Material | STEEL HUB |
| 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 |
|---|---|
| 8171740 PRIMARY | Us Army Aviation and Missile Command (USA) |
NSN 3020-00-563-3835 is a Gear,antibacklash,spur, manufactured by Us Army Aviation and Missile Command, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-563-3835 has 1 manufacturer part number on file: 8171740 (Us Army Aviation and Missile Command).
Key specifications for 8171740: Bore Nominal Diameter: 0.750 INCHES BOTH ENDS IN; Teeth Quantity: 63; Surface Treatment Document and Classification: MIL-STD-171,5.4 MIL STD SINGLE TREATMENT RESPONSE HUB; Bore Style: PLAIN 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.