The Pulley,groove, cataloged under National Stock Number 3020-01-646-5186, 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 Naval Sea Systems Command. 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 | 3020-01-646-5186 |
| Primary Part Number | 588-7666739 ITEM 1 |
| Item Name | Pulley,groove |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Integral Cooling Vane | NOT INCLUDED |
| Bore Feature | NOT INCLUDED |
| Split Hub Feature | NOT INCLUDED |
| Design Form | PLAIN |
| Groove Radius | 1.000 INCHES NOMINAL IN |
| Groove Shape | U |
| Outside Diameter | 5.690 INCHES NOMINAL IN |
| Style Designator | WEBBED OR SPOKED |
| Pitch Diameter | 5.000 INCHES NOMINAL IN |
| Groove Depth | 0.690 INCHES NOMINAL IN |
| Groove Quantity | 1 |
| Distance From Outside Flange/rim to Hub End and Location | 0.625 INCHES NOMINAL BOTH ENDS IN |
| Face Width | 1.630 INCHES NOMINAL IN |
| Groove Width | 1.500 INCHES NOMINAL IN |
| Lightening Hole | NOT INCLUDED |
| 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 |
|---|---|
| 588-7666739 ITEM 1 PRIMARY | Naval Sea Systems Command (USA) |
NSN 3020-01-646-5186 is a Pulley,groove, manufactured by Naval Sea Systems Command, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-646-5186 has 1 manufacturer part number on file: 588-7666739 ITEM 1 (Naval Sea Systems Command).
Key specifications for 588-7666739 ITEM 1: Integral Cooling Vane: NOT INCLUDED; Bore Feature: NOT INCLUDED; Split Hub Feature: NOT INCLUDED; Design Form: PLAIN. 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.