The Pulley,groove, cataloged under National Stock Number 3020-01-467-4958, 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 Caterpillar Inc Div Caterpillar Defense. Government technical data includes 28 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 | 3020-01-467-4958 |
| Primary Part Number | 7E4839 |
| Item Name | Pulley,groove |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Integral Cooling Vane | NOT INCLUDED |
| Hub Outside Diameter | 39.0 MILLIMETERS MINIMUM AND 41.0 MILLIMETERS MAXIMUM AA END MM |
| Bore Feature | INCLUDED |
| Split Hub Feature | NOT INCLUDED |
| Bore Length | 53.4 MILLIMETERS NOMINAL MM |
| Design Form | PLAIN |
| Groove Radius | 0.5 MILLIMETERS NOMINAL MM |
| Groove Shape | V |
| Outside Diameter | 80.5 MILLIMETERS NOMINAL MM |
| Style Designator | PLAIN |
| Pitch Diameter | 73.6 MILLIMETERS NOMINAL MM |
| Groove Depth | 3.0 MILLIMETERS NOMINAL MM |
| Bore Type | STRAIGHT |
| Bearings | NOT INCLUDED |
| Counterbore Depth | 20.0 MILLIMETERS NOMINAL MM |
| Groove Quantity | 8 |
| Counterbore Location | BB END |
| V Groove Angle in Deg | 45.0 |
| Counterbore Diameter | 40.0 MILLIMETERS NOMINAL MM |
| Unable to Decode | UNABLE TO DECODE AND UNABLE TO DECODE |
| Distance From Outside Flange/rim to Hub End and Location | 20.4 MILLIMETERS NOMINAL AA END MM |
| Counterbore Feature | INCLUDED |
| Bore Diameter | 22.2 MILLIMETERS NOMINAL MM |
| Material | STEEL BODY |
| Unable to Decode | UNABLE TO DECODE |
| Face Width | 33.0 MILLIMETERS NOMINAL MM |
| Groove Width | 3.5 MILLIMETERS NOMINAL MM |
| 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 |
|---|---|
| 7E4839 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
NSN 3020-01-467-4958 is a Pulley,groove, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-467-4958 has 1 manufacturer part number on file: 7E4839 (Caterpillar Inc Div Caterpillar Defense).
Key specifications for 7E4839: Integral Cooling Vane: NOT INCLUDED; Hub Outside Diameter: 39.0 MILLIMETERS MINIMUM AND 41.0 MILLIMETERS MAXIMUM AA END MM; Bore Feature: INCLUDED; Split Hub Feature: NOT INCLUDED. 28 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.