The Gear,spur, cataloged under National Stock Number 3020-00-308-3940, 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 Renk America Llc Div Renk America. Government technical data includes 19 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-308-3940 |
| Primary Part Number | 580433 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Renk America Llc Div Renk America |
| Status | ACTIVE |
| Teeth Quantity | 30 |
| Nominal Distance Between Body Face and Protruding Hub End | 1.060 INCHES FIRST END IN |
| Nominal Distance Between Body Face and Protruding Hub End | 1.028 INCHES SECOND END IN |
| Hardness Rating | 58.0 ROCKWELL C MINIMUM AND 62.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Overall Length | 3.120 INCHES IN |
| Style Designator | PROTRUDING HUBS |
| Material Document and Classification | MIL-S-13048 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 3.7500 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | 1 GROOVE BOTH ENDS |
| Nominal Outside Diameter | 3.998 INCHES IN |
| Nominal Distance From End to First Groove | 0.410 INCHES BOTH ENDS IN |
| End Nominal Diameter | 1.747 INCHES BOTH ENDS IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 8620 OVERALL |
| First Groove Nominal Diameter | 1.440 INCHES SECOND END IN |
| First Groove Nominal Diameter | 1.690 INCHES FIRST END IN |
| First Groove Nominal Width | 0.220 INCHES BOTH ENDS IN |
| Face Nominal Width | 1.000 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 |
NSN 3020-00-308-3940 is a Gear,spur, manufactured by Renk America Llc Div Renk America, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-308-3940 has 2 manufacturer part numbers on file: 8698590 (U S Army Tank Automotive Command Amsta-Im-Mm), 580433 (Renk America Llc Div Renk America).
Key specifications for 580433: Teeth Quantity: 30; Nominal Distance Between Body Face and Protruding Hub End: 1.060 INCHES FIRST END IN; Nominal Distance Between Body Face and Protruding Hub End: 1.028 INCHES SECOND END IN; Hardness Rating: 58.0 ROCKWELL C MINIMUM AND 62.0 ROCKWELL C MAXIMUM OVERALL. 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.