The Pulley,groove, cataloged under National Stock Number 3020-01-283-2109, 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 20 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 | 3020-01-283-2109 |
| Primary Part Number | 2BK120H |
| 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 |
| Bore Feature | INCLUDED |
| Split Hub Feature | NOT INCLUDED |
| Design Form | PLAIN |
| Groove Radius | 0.381 INCHES NOMINAL IN |
| Groove Shape | V |
| Standard V-Belt Section Designation for Which Designed | 5L |
| Outside Diameter | 11.750 INCHES NOMINAL IN |
| Style Designator | PLAIN |
| Pitch Diameter | 11.400 INCHES NOMINAL IN |
| Groove Depth | 0.887 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Bearings | NOT INCLUDED |
| Groove Quantity | 2 |
| V Groove Angle in Deg | 36.0 |
| Counterbore Feature | NOT INCLUDED |
| Material | IRON CAST OVERALL |
| Face Width | 1.750 INCHES NOMINAL IN |
| Groove Width | 0.437 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 |
|---|---|
| 2BK120H PRIMARY | Emerson Electric Co Browning Mfg Div (USA) |
NSN 3020-01-283-2109 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 3020-01-283-2109 has 1 manufacturer part number on file: 2BK120H (Emerson Electric Co Browning Mfg Div).
Key specifications for 2BK120H: Integral Cooling Vane: NOT INCLUDED; Bore Feature: INCLUDED; Split Hub Feature: NOT INCLUDED; Design Form: PLAIN. 20 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.