The Gear,spur, cataloged under National Stock Number 3020-01-385-9029, 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 Syn-Tech System, Inc.. Government technical data includes 19 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 | 3020-01-385-9029 |
| Primary Part Number | 912F0613 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Syn-Tech System, Inc. |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.787 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 1.000 INCHES FIRST END IN |
| Teeth Quantity | 36 |
| Body Style | PLAIN, WITH LIGHTENING HOLES |
| Bore Style | INVOLUTE SPLINE BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.208 INCHES FIRST END IN |
| Precision Classification | QUALITY NUMBER 8 |
| Hardness Rating | 35.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL |
| Style Designator | PROTRUDING HUB |
| Material Document and Classification | QQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 3.6000 INCHES NOMINAL IN |
| Hub Style Designator | PLAIN FIRST END |
| Spline Quantity | 23 BOTH ENDS |
| Nominal Outside Diameter | 3.800 INCHES IN |
| Surface Treatment | PHOSPHATE OVERALL |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 4340 OVERALL |
| Spline Pitch Diameter | 0.7188 INCHES NOMINAL BOTH ENDS IN |
| Face Nominal Width | 0.375 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 |
|---|---|
| 912F0613 PRIMARY | Syn-Tech System, Inc. (USA) |
NSN 3020-01-385-9029 is a Gear,spur, manufactured by Syn-Tech System, Inc., classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-385-9029 has 1 manufacturer part number on file: 912F0613 (Syn-Tech System, Inc.).
Key specifications for 912F0613: Bore Nominal Diameter: 0.787 INCHES BOTH ENDS IN; Hub Nominal Diameter: 1.000 INCHES FIRST END IN; Teeth Quantity: 36; Body Style: PLAIN, WITH LIGHTENING HOLES. 19 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.