The Gear,antibacklash,spur, cataloged under National Stock Number 3020-00-366-8044, 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 Southern Gear & Machine Inc. Government technical data includes 22 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-366-8044 |
| Primary Part Number | 7521069 |
| Item Name | Gear,antibacklash,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Southern Gear & Machine Inc |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.125 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.185 INCHES FIRST END IN |
| Teeth Quantity | 60 |
| Clamping Surface Nominal Length | 0.172 INCHES FIRST END IN |
| Surface Treatment Document and Classification | MIL-STD-171,FINISH NO. 5.4.1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Bore Style | PLAIN BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.229 INCHES FIRST END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 0.062 INCHES SECOND END IN |
| Precision Classification | QUALITY NUMBER 10 |
| Nominal Overall Length | 0.395 INCHES IN |
| Style Designator | PROTRUDING HUBS |
| Material Document and Classification | QQ-S-764,TYPE 303,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 0.6250 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | SPLIT FIRST END |
| Hub Style Designator | PLAIN SECOND END |
| Nominal Outside Diameter | 0.548 INCHES IN |
| Surface Treatment | PASSIVATE OVERALL |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 303 OVERALL |
| Attachment Method | CLAMP |
| Face Nominal Width | 0.104 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 |
|---|---|
| 7521069 PRIMARY | Southern Gear & Machine Inc (USA) |
| 9703-1001S PRIMARY | Designatronics Inc Perfect Gear and Instrument Div (USA) |
| Reference | Meaning |
|---|---|
| 901004-3C | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 3020-00-366-8044 is a Gear,antibacklash,spur, manufactured by Southern Gear & Machine Inc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-366-8044 has 2 manufacturer part numbers on file: 7521069 (Southern Gear & Machine Inc), 9703-1001S (Designatronics Inc Perfect Gear and Instrument Div).
Key specifications for 7521069: Bore Nominal Diameter: 0.125 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.185 INCHES FIRST END IN; Teeth Quantity: 60; Clamping Surface Nominal Length: 0.172 INCHES FIRST END IN. 22 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.