The Gear,helical, cataloged under National Stock Number 3020-00-422-9995, 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 Cotta Transmission Co Llc. Government technical data includes 15 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 | 3020-00-422-9995 |
| Primary Part Number | PT-5580-B |
| Item Name | Gear,helical |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Cotta Transmission Co Llc |
| Status | ACTIVE |
| Bore Nominal Diameter | 2.975 INCHES BOTH ENDS IN |
| Helix Angle | 18.6667 DEGREES |
| Teeth Quantity | 41 |
| Body Style | PLAIN, SOLID |
| Tooth Direction | LEFT |
| Bore Style | STRAIGHT SPLINE BOTH ENDS |
| Teeth Type | SINGLE HELIX |
| Style Designator | HUBLESS |
| Material Document and Classification | 66 FED STD SINGLE MATERIAL RESPONSE AND AISI/SAE 8620 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 6.1620 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Spline Quantity | 10 BOTH ENDS |
| Nominal Outside Diameter | 6.4040 INCHES IN |
| Material | STEEL COMP 8620 OVERALL |
| Face Nominal Width | 2.390 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 |
|---|---|
| PT-5580-B PRIMARY | Cotta Transmission Co Llc (USA) |
NSN 3020-00-422-9995 is a Gear,helical, manufactured by Cotta Transmission Co Llc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-422-9995 has 1 manufacturer part number on file: PT-5580-B (Cotta Transmission Co Llc).
Key specifications for PT-5580-B: Bore Nominal Diameter: 2.975 INCHES BOTH ENDS IN; Helix Angle: 18.6667 DEGREES; Teeth Quantity: 41; Body Style: PLAIN, SOLID. 15 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.