The Gear,antibacklash,spur, cataloged under National Stock Number 3020-00-019-1540, 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 L3harris Interstate Electronics Corporation. 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 | 3020-00-019-1540 |
| Primary Part Number | 524-212-030 |
| Item Name | Gear,antibacklash,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | L3harris Interstate Electronics Corporation |
| Status | ACTIVE |
| Furnished Items and Quantity | 1 SPRING AND 1 RETAINING RING |
| Bore Nominal Diameter | 0.120 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.157 INCHES FIRST END IN |
| Teeth Quantity | 100 |
| Clamping Surface Nominal Length | 0.113 INCHES FIRST END IN |
| Surface Treatment Document and Classification | 21070 CAGE 92220 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Bore Style | PLAIN BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.154 INCHES FIRST END IN |
| Precision Classification | QUALITY NUMBER 12 |
| Style Designator | PROTRUDING HUB |
| Material Document and Classification | QQ-A-268 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 0.8333 INCHES NOMINAL IN |
| Tooth Form | STUB |
| Hub Style Designator | SPLIT FIRST END |
| Nominal Outside Diameter | 0.849 INCHES IN |
| Surface Treatment | OXIDE FILM OVERALL |
| Pressure Angle | 20.0000 DEGREES |
| Material | ALUMINUM ALLOY OVERALL |
| Attachment Method | CLAMP |
| Face Nominal Width | 0.055 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 |
|---|---|
| 524-212-030 PRIMARY | L3harris Interstate Electronics Corporation (USA) |
NSN 3020-00-019-1540 is a Gear,antibacklash,spur, manufactured by L3harris Interstate Electronics Corporation, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-019-1540 has 1 manufacturer part number on file: 524-212-030 (L3harris Interstate Electronics Corporation).
Key specifications for 524-212-030: Furnished Items and Quantity: 1 SPRING AND 1 RETAINING RING; Bore Nominal Diameter: 0.120 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.157 INCHES FIRST END IN; Teeth Quantity: 100. 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.