The Pulley,groove, cataloged under National Stock Number 3020-01-172-8329, 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 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 | 3020-01-172-8329 |
| Primary Part Number | BK47H |
| 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 | 2.500 INCHES NOMINAL BOTH ENDS IN |
| Bore Feature | INCLUDED |
| Taper Bore Minor Diameter | 1.570 INCHES NOMINAL IN |
| Split Hub Feature | NOT INCLUDED |
| Bore Length | 1.312 INCHES NOMINAL IN |
| Design Form | WEBBED |
| Web/spoke Relationship to Face Centerline | NOT OFFSET |
| Groove Shape | V |
| Standard V-Belt Section Designation for Which Designed | A |
| Outside Diameter | 4.450 INCHES NOMINAL IN |
| Taper Major Diameter Location | AA END |
| Style Designator | WEBBED OR SPOKED |
| Pitch Diameter | 3.700 INCHES NOMINAL IN |
| Groove Depth | 0.625 INCHES NOMINAL IN |
| Bore Type | TAPERED |
| Bearings | NOT INCLUDED |
| Groove Quantity | 1 |
| Taper Bore Major Diameter | 1.625 INCHES NOMINAL IN |
| V Groove Angle in Deg | 34.0 |
| Unable to Decode | UNABLE TO DECODE |
| Distance From Outside Flange/rim to Hub End and Location | 0.437 INCHES NOMINAL AA END IN |
| Counterbore Feature | NOT INCLUDED |
| Material | IRON CAST OVERALL |
| Unable to Decode | UNABLE TO DECODE |
| Face Width | 0.875 INCHES NOMINAL IN |
| Groove Width | 0.612 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 |
|---|---|
| BK47H PRIMARY | Emerson Electric Co Browning Mfg Div (USA) |
NSN 3020-01-172-8329 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 3020-01-172-8329 has 1 manufacturer part number on file: BK47H (Emerson Electric Co Browning Mfg Div).
Key specifications for BK47H: Integral Cooling Vane: NOT INCLUDED; Hub Outside Diameter: 2.500 INCHES NOMINAL BOTH ENDS IN; Bore Feature: INCLUDED; Taper Bore Minor Diameter: 1.570 INCHES NOMINAL IN. 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.