The Gear,antibacklash,spur, cataloged under National Stock Number 3020-00-723-6399, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 25 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-723-6399 |
| Item Name | Gear,antibacklash,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.1210 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.188 INCHES FIRST END IN |
| Teeth Quantity | 72 |
| Clamping Surface Nominal Length | 0.1860 INCHES FIRST END IN |
| Surface Treatment Document and Classification | CAGE 96214 F-16 MFR REF SINGLE TREATMENT RESPONSE HUB |
| Surface Treatment Document and Classification | CAGE 96214 F-21 ALODINE 600 MFR REF SINGLE TREATMENT RESPONSE BODY |
| Surface Treatment Document and Classification | CAGE 96214 F-21 ALODINE 600 MFR REF SINGLE TREATMENT RESPONSE TEETH |
| Bore Style | PLAIN BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.2300 INCHES FIRST END IN |
| Precision Classification | QUALITY NUMBER 8 |
| Style Designator | PROTRUDING HUB |
| Material Document and Classification | FED-STD-66 FED STD 1ST MATERIAL RESPONSE OR MIL-S-7720,COND A MIL SPEC 2ND MATERIAL RESPONSE HUB |
| Material Document and Classification | QQ-A-355 FED SPEC ALL MATERIAL RESPONSES BODY |
| Pitch Diameter | 1.5000 INCHES NOMINAL IN |
| Tooth Form | STUB |
| Hub Style Designator | SPLIT FIRST END |
| Nominal Outside Diameter | 1.5416 INCHES IN |
| Surface Treatment | CHROMATE BODY |
| Surface Treatment | PASSIVATE HUB |
| Surface Treatment | CHROMATE TEETH |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 303 HUB |
| Material | ALUMINUM ALLOY 2024 OR ALUMINUM ALLOY BODY |
| Attachment Method | CLAMP |
| Face Nominal Width | 0.142 INCHES IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 405820-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-00-723-6399 is a Gear,antibacklash,spur, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-00-723-6399: Bore Nominal Diameter: 0.1210 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.188 INCHES FIRST END IN; Teeth Quantity: 72; Clamping Surface Nominal Length: 0.1860 INCHES FIRST END IN. 25 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.
NSN 3020-00-723-6399 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.