The Pulley,groove, cataloged under National Stock Number 3020-00-009-2102, 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 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 3020-00-009-2102 |
| Primary Part Number | AK46H & H 7/8 |
| 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 AA END IN |
| Bore Feature | INCLUDED |
| Securing Method | SPLIT-TAPERED BUSHING |
| Split Hub Feature | NOT INCLUDED |
| Bore Length | 1.500 INCHES NOMINAL IN |
| Design Form | SPOKED |
| Standard V-Belt Section Designation for Which Designed | 4L |
| Outside Diameter | 4.450 INCHES NOMINAL IN |
| Keying Facility Type | KEYWAY |
| Quantity | 1 |
| Style Designator | WEBBED OR SPOKED |
| Pitch Diameter | 4.200 INCHES NOMINAL IN |
| Groove Depth | 0.437 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Bearings | NOT INCLUDED |
| Groove Quantity | 1 |
| V Groove Angle in Deg | 34.0 |
| Distance From Center of Bore to Bottom of Keyway | 0.531 INCHES NOMINAL IN |
| Keyway Width | 0.188 INCHES NOMINAL IN |
| Unable to Decode | UNABLE TO DECODE |
| Counterbore Feature | NOT INCLUDED |
| Bore Diameter | 0.875 INCHES NOMINAL IN |
| Material | IRON CAST OVERALL |
| Face Width | 0.875 INCHES NOMINAL IN |
| Groove Width | 0.500 INCHES NOMINAL IN |
| Furnished Items and Quantity | CAPSCREWS,TWO EACH |
| 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 |
|---|---|
| AK46H & H 7/8 | Emerson Electric Co Browning Mfg Div (USA) |
| 157303276 | L & L Boiler Maintenance Inc (USA) |
| Reference | Meaning |
|---|---|
| AK46H7-8B | 3/9 Design control — primary reference Emerson Electric Co Browning Mfg Div |
| 157303276 | 5/9 Secondary reference D & J Parts Inc |
NSN 3020-00-009-2102 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 3020-00-009-2102 has 2 manufacturer part numbers on file: AK46H & H 7/8 (Emerson Electric Co Browning Mfg Div), 157303276 (L & L Boiler Maintenance Inc).
Key specifications for AK46H & H 7/8: Integral Cooling Vane: NOT INCLUDED; Hub Outside Diameter: 2.500 INCHES NOMINAL AA END IN; Bore Feature: INCLUDED; Securing Method: SPLIT-TAPERED BUSHING. 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.