The Pulley,groove, cataloged under National Stock Number 3020-00-992-8654, 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 Emerson Electric Co Browning Mfg Div. Government technical data includes 27 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-992-8654 |
| Primary Part Number | 1VL40X 1/2 |
| Item Name | Pulley,groove |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Emerson Electric Co Browning Mfg Div |
| Status | ACTIVE |
| Integral Cooling Vane | NOT INCLUDED |
| Hub Outside Diameter | 1.500 INCHES NOMINAL BB END IN |
| Hub Outside Diameter | 1.688 INCHES NOMINAL AA END IN |
| Bore Feature | INCLUDED |
| Securing Method | SETSCREW |
| Split Hub Feature | NOT INCLUDED |
| Bore Length | 1.656 INCHES NOMINAL IN |
| Design Form | PLAIN |
| Groove Shape | V |
| Outside Diameter | 3.750 INCHES NOMINAL IN |
| Style Designator | PLAIN |
| Groove Depth | 0.781 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Bearings | NOT INCLUDED |
| Groove Quantity | 1 |
| V Groove Angle in Deg | 34.0 |
| Protruding Hub Characteristic | PLAIN |
| Unable to Decode | UNABLE TO DECODE AND UNABLE TO DECODE |
| Distance From Outside Flange/rim to Hub End and Location | 0.555 INCHES NOMINAL AA END AND 0.425 INCHES NOMINAL BB END IN |
| Counterbore Feature | NOT INCLUDED |
| Bore Diameter | 0.469 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| Unable to Decode | UNABLE TO DECODE |
| Face Width | 0.974 INCHES NOMINAL IN |
| Groove Width | 0.781 INCHES NOMINAL IN |
| 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 |
|---|---|
| 1VL40X 1/2 PRIMARY | Emerson Electric Co Browning Mfg Div (USA) |
| Reference | Meaning |
|---|---|
| 1VL40 1-2 | 5/9 Secondary reference Emerson Electric Co Browning Mfg Div |
NSN 3020-00-992-8654 is a Pulley,groove, manufactured by Emerson Electric Co Browning Mfg Div, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-992-8654 has 1 manufacturer part number on file: 1VL40X 1/2 (Emerson Electric Co Browning Mfg Div).
Key specifications for 1VL40X 1/2: Integral Cooling Vane: NOT INCLUDED; Hub Outside Diameter: 1.500 INCHES NOMINAL BB END IN; Hub Outside Diameter: 1.688 INCHES NOMINAL AA END IN; Bore Feature: INCLUDED. 27 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.