The Pulley,cone, cataloged under National Stock Number 3020-01-184-4715, 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 Hoyt Corporation. Government technical data includes 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3020-01-184-4715 |
| Primary Part Number | 18-586-B |
| Item Name | Pulley,cone |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Hoyt Corporation |
| Status | ACTIVE |
| Integral Cooling Vane | NOT INCLUDED |
| Design Form | SPOKED |
| Web/spoke Relationship to Face Centerline | NOT OFFSET |
| Face Type | STEP GROOVE |
| Groove Shape | V |
| Style Designator | WEBBED OR SPOKED |
| Groove Quantity | 2 |
| V Groove Angle in Deg | 38.0 AND 40.0 |
| Step Outside Diameter | 11.550 INCHES NOMINAL AND 5.350 INCHES NOMINAL IN |
| Material | IRON CAST OVERALL |
| Face Width | 0.688 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 |
NSN 3020-01-184-4715 is a Pulley,cone, manufactured by Hoyt Corporation, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-184-4715 has 2 manufacturer part numbers on file: 18-586-B (Hoyt Corporation), 4912-B (Maurey Mfg Co).
1 possible match (shared part number, not a government interchangeability claim): 6130-01-601-3978. Verify interchangeability with system specifications before substitution.
Key specifications for 18-586-B: Integral Cooling Vane: NOT INCLUDED; Design Form: SPOKED; Web/spoke Relationship to Face Centerline: NOT OFFSET; Face Type: STEP GROOVE. 12 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.