The Pulley,groove, cataloged under National Stock Number 3020-01-145-5746, 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 Wedj/three C's Inc. Government technical data includes 28 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-145-5746 |
| Primary Part Number | 034W401 |
| Item Name | Pulley,groove |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Wedj/three C's Inc |
| Status | ACTIVE |
| Integral Cooling Vane | NOT INCLUDED |
| Hub Outside Diameter | 1.530 INCHES NOMINAL AA END IN |
| Hub Outside Diameter | 1.710 INCHES NOMINAL BB END IN |
| Bore Feature | INCLUDED |
| Securing Method | SETSCREW |
| Split Hub Feature | NOT INCLUDED |
| Bore Length | 1.688 INCHES NOMINAL IN |
| Design Form | PLAIN |
| Groove Shape | V |
| Standard V-Belt Section Designation for Which Designed | 3L AND 4L AND 5L |
| Outside Diameter | 3.150 INCHES NOMINAL IN |
| Style Designator | PLAIN |
| Bore Type | STRAIGHT |
| Bearings | NOT INCLUDED |
| Groove Quantity | 1 |
| V Groove Angle in Deg | 20.0 |
| Protruding Hub Characteristic | PLAIN |
| Unable to Decode | UNABLE TO DECODE AND UNABLE TO DECODE |
| Distance From Outside Flange/rim to Hub End and Location | 0.375 INCHES NOMINAL AA END AND 0.500 INCHES NOMINAL BB END IN |
| Counterbore Feature | NOT INCLUDED |
| Bore Diameter | 0.500 INCHES NOMINAL IN |
| Material | IRON CAST OVERALL |
| Unable to Decode | UNABLE TO DECODE |
| Face Width | 0.625 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN |
| Groove Width | 0.500 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN |
| Furnished Items and Quantity | ONE SETSCREW |
| Securing Location | AA END |
| 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 |
|---|---|
| 034W401 PRIMARY | Wedj/three C's Inc (USA) |
| IVL341/2INBORE PRIMARY | Emerson Electric Co Browning Mfg Div (USA) |
| Reference | Meaning |
|---|---|
| IVL34 1/2INB0RE | C/1 Advisory reference — outside the item-of-supply concept Emerson Electric Co Browning Mfg Div |
NSN 3020-01-145-5746 is a Pulley,groove, manufactured by Wedj/three C's Inc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-145-5746 has 2 manufacturer part numbers on file: 034W401 (Wedj/three C's Inc), IVL341/2INBORE (Emerson Electric Co Browning Mfg Div).
Key specifications for 034W401: Integral Cooling Vane: NOT INCLUDED; Hub Outside Diameter: 1.530 INCHES NOMINAL AA END IN; Hub Outside Diameter: 1.710 INCHES NOMINAL BB END IN; Bore Feature: 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.