The Pulley,flat, cataloged under National Stock Number 3020-00-047-3884, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 25 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-047-3884 |
| Item Name | Pulley,flat |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Integral Cooling Vane | NOT INCLUDED |
| Hub Outside Diameter | 2.281 INCHES NOMINAL BOTH ENDS IN |
| Bore Feature | INCLUDED |
| Split Hub Feature | NOT INCLUDED |
| Bore Length | 1.062 INCHES NOMINAL IN |
| Design Form | WEBBED |
| Web/spoke Relationship to Face Centerline | OFFSET |
| Keyway Spacing in Deg | 180.0 |
| Outside Diameter | 6.875 INCHES NOMINAL IN |
| Keying Facility Type | KEYWAY |
| Quantity | 2 |
| Style Designator | WEBBED OR SPOKED |
| Bore Type | STRAIGHT |
| Bearings | NOT INCLUDED |
| Distance From Center of Bore to Bottom of Keyway | 0.969 INCHES NOMINAL IN |
| Keyway Width | 0.312 INCHES NOMINAL IN |
| Surface Treatment | PAINT |
| Distance From Outside Flange/rim to Hub End and Location | 0.438 INCHES NOMINAL BB END IN |
| Keying Facility | INCLUDED |
| Counterbore Feature | NOT INCLUDED |
| Bore Diameter | 1.625 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| Crown Face | NOT INCLUDED |
| Face Width | 1.500 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 |
| Reference | Meaning |
|---|---|
| HEPC061-347 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-00-047-3884 is a Pulley,flat, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-00-047-3884: Integral Cooling Vane: NOT INCLUDED; Hub Outside Diameter: 2.281 INCHES NOMINAL BOTH ENDS IN; Bore Feature: INCLUDED; Split Hub Feature: NOT INCLUDED. 25 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.