The Pulley,groove, cataloged under National Stock Number 3020-01-313-1678, 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 30 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-01-313-1678 |
| Primary Part Number | 2AK44H USE H 1 3/16 BUSHING |
| 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 |
| Bearing Quantity | 1 |
| Split Hub Feature | NOT INCLUDED |
| Bore Length | 1.500 INCHES NOMINAL IN |
| Design Form | SPOKED OR WEBBED |
| Web/spoke Relationship to Face Centerline | NOT OFFSET |
| Groove Shape | V |
| Standard V-Belt Section Designation for Which Designed | 4L |
| Outside Diameter | 4.250 INCHES NOMINAL IN |
| Keying Facility Type | KEYWAY |
| Quantity | 1 |
| Style Designator | WEBBED OR SPOKED |
| Pitch Diameter | 3.660 INCHES MINIMUM AND 4.000 INCHES MAXIMUM IN |
| Groove Depth | 0.281 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Bearings | INCLUDED |
| Groove Quantity | 2 |
| V Groove Angle in Deg | 40.0 |
| Distance From Center of Bore to Bottom of Keyway | 0.844 INCHES NOMINAL IN |
| Bearing Type | SLEEVE |
| Keyway Width | 0.125 INCHES NOMINAL IN |
| Distance From Outside Flange/rim to Hub End and Location | 0.440 INCHES NOMINAL BB END IN |
| Counterbore Feature | NOT INCLUDED |
| Bore Diameter | 1.375 INCHES NOMINAL IN |
| Material | IRON CAST OVERALL |
| Furnished Items | KEYING FACILITY |
| Face Width | 1.375 INCHES NOMINAL IN |
| Groove Width | 0.500 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 |
|---|---|
| 2AK44H USE H 1 3/16 BUSHING PRIMARY | Emerson Electric Co Browning Mfg Div (USA) |
| Reference | Meaning |
|---|---|
| 2AK44H 1 3/16 | 3/9 Design control — primary reference Emerson Electric Co Browning Mfg Div |
NSN 3020-01-313-1678 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 3020-01-313-1678 has 1 manufacturer part number on file: 2AK44H USE H 1 3/16 BUSHING (Emerson Electric Co Browning Mfg Div).
Key specifications for 2AK44H USE H 1 3/16 BUSHING: Integral Cooling Vane: NOT INCLUDED; Bore Feature: INCLUDED; Bearing Quantity: 1; Split Hub Feature: NOT INCLUDED. 30 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.