The Pulley,groove, cataloged under National Stock Number 3020-01-478-8932, 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 Pacific Consolidated Industries Llc. Government technical data includes 20 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-478-8932 |
| Primary Part Number | 581909-004 |
| Item Name | Pulley,groove |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Pacific Consolidated Industries Llc |
| Status | ACTIVE |
| Integral Cooling Vane | NOT INCLUDED |
| Bore Feature | INCLUDED |
| Split Hub Feature | NOT INCLUDED |
| Bore Length | 1.094 INCHES NOMINAL IN |
| Design Form | PLAIN |
| Groove Shape | V |
| Outside Diameter | 3.650 INCHES NOMINAL IN |
| Style Designator | PLAIN |
| Pitch Diameter | 3.525 INCHES NOMINAL IN |
| Groove Depth | 0.094 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Bearings | NOT INCLUDED |
| Groove Quantity | 2 |
| V Groove Angle in Deg | 20.0 |
| Counterbore Feature | NOT INCLUDED |
| Bore Diameter | 1.688 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| Face Width | 1.094 INCHES NOMINAL IN |
| Groove Width | 0.094 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 |
|---|---|
| 581909-004 | Pacific Consolidated Industries Llc (USA) |
| Reference | Meaning |
|---|---|
| 581909 | D/9 Drawing number reference only Pacific Consolidated Industries Llc |
| 3020PL0651266 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 112189 | 3/9 Design control — primary reference Dodge Mfg Corp Div of Reliance Electric Co |
NSN 3020-01-478-8932 is a Pulley,groove, manufactured by Pacific Consolidated Industries Llc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-478-8932 has 1 manufacturer part number on file: 581909-004 (Pacific Consolidated Industries Llc).
1 possible match (shared part number, not a government interchangeability claim): 3020-01-479-4002. Verify interchangeability with system specifications before substitution.
Key specifications for 581909-004: Integral Cooling Vane: NOT INCLUDED; Bore Feature: INCLUDED; Split Hub Feature: NOT INCLUDED; Bore Length: 1.094 INCHES NOMINAL IN. 20 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.