The Pulley,groove, cataloged under National Stock Number 3020-01-305-7013, 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 24 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-305-7013 |
| Primary Part Number | AK56H |
| 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 |
| Taper Bore Minor Diameter | 0.750 INCHES NOMINAL IN |
| Split Hub Feature | NOT INCLUDED |
| Bore Length | 0.880 INCHES NOMINAL IN |
| Design Form | SPOKED |
| Web/spoke Relationship to Face Centerline | NOT OFFSET |
| Groove Shape | V |
| Standard V-Belt Section Designation for Which Designed | A |
| Outside Diameter | 5.450 INCHES NOMINAL IN |
| Taper Major Diameter Location | BB END |
| Style Designator | PLAIN |
| Pitch Diameter | 5.200 INCHES NOMINAL IN |
| Groove Depth | 0.250 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 |
| Counterbore Feature | NOT INCLUDED |
| Material | IRON CAST OVERALL |
| Face Width | 0.880 INCHES NOMINAL IN |
| Groove Width | 0.750 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 |
|---|---|
| AK56H PRIMARY | Emerson Electric Co Browning Mfg Div (USA) |
| MAL54 PRIMARY | Reliance Electric Company Dba Reliance & Dodge Brands (USA) |
| 121027 | Reliance Electric Company Dba Reliance & Dodge Brands (USA) |
| Reference | Meaning |
|---|---|
| AK56H | 5/9 Secondary reference Reliance Electric Company Dba Reliance & Dodge Brands |
| 13230E3592-2 | 7/1 Vendor item drawing reference U.S. Government activity |
NSN 3020-01-305-7013 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 3020-01-305-7013 has 3 manufacturer part numbers on file: AK56H (Emerson Electric Co Browning Mfg Div), MAL54 (Reliance Electric Company Dba Reliance & Dodge Brands), 121027 (Reliance Electric Company Dba Reliance & Dodge Brands).
Key specifications for AK56H: Integral Cooling Vane: NOT INCLUDED; Bore Feature: INCLUDED; Taper Bore Minor Diameter: 0.750 INCHES NOMINAL IN; Split Hub Feature: NOT INCLUDED. 24 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.