The Pulley,groove, cataloged under National Stock Number 3020-01-319-9422, 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 Perkins Engines Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-319-9422 |
| Primary Part Number | 31147581 |
| Item Name | Pulley,groove |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Perkins Engines Inc |
| Status | ACTIVE |
| Integral Cooling Vane | NOT INCLUDED |
| Bore Feature | INCLUDED |
| Securing Method | THREADED HOLE(S) |
| Split Hub Feature | NOT INCLUDED |
| Bore Length | 0.875 INCHES NOMINAL IN |
| Design Form | PLAIN |
| Groove Shape | V |
| Outside Diameter | 5.850 INCHES NOMINAL IN |
| Keying Facility Type | KEYWAY |
| Quantity | 1 |
| Style Designator | WEBBED OR SPOKED |
| Groove Depth | 0.594 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Bearings | NOT INCLUDED |
| Groove Quantity | 2 |
| V Groove Angle in Deg | 30.0 |
| Distance From Center of Bore to Bottom of Keyway | 0.418 INCHES NOMINAL IN |
| Securing Hole Quantity | 4 |
| Thread Size | 1/4-12 |
| Keyway Width | 0.125 INCHES NOMINAL IN |
| Unable to Decode | UNABLE TO DECODE |
| Distance From Outside Flange/rim to Hub End and Location | 1.703 INCHES NOMINAL AA END AND 1.922 INCHES NOMINAL BB END IN |
| Hole Location | 4 HOLES ON 90 DEGREES FROM CENTER |
| Counterbore Feature | NOT INCLUDED |
| Bore Diameter | 0.750 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| Unable to Decode | UNABLE TO DECODE |
| Furnished Items | KEYING FACILITY |
| 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 |
|---|---|
| 31147581 PRIMARY | Perkins Engines Inc (USA) |
| Reference | Meaning |
|---|---|
| 31147581 | 5/9 Secondary reference Power Great Lakes, Inc. |
NSN 3020-01-319-9422 is a Pulley,groove, manufactured by Perkins Engines Inc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-319-9422 has 1 manufacturer part number on file: 31147581 (Perkins Engines Inc).
Key specifications for 31147581: Integral Cooling Vane: NOT INCLUDED; Bore Feature: INCLUDED; Securing Method: THREADED HOLE(S); Split Hub Feature: NOT INCLUDED. 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.