The Pulley,groove, cataloged under National Stock Number 3020-00-949-5482, 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 Terex American Crane Corp. Government technical data includes 24 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-00-949-5482 |
| Primary Part Number | 481556 |
| Item Name | Pulley,groove |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Terex American Crane Corp |
| Status | ACTIVE |
| Integral Cooling Vane | NOT INCLUDED |
| Hub Outside Diameter | 4.750 INCHES NOMINAL BOTH ENDS IN |
| Bore Feature | INCLUDED |
| Split Hub Feature | NOT INCLUDED |
| Bore Length | 1.750 INCHES NOMINAL IN |
| Design Form | SPOKED |
| Web/spoke Relationship to Face Centerline | NOT OFFSET |
| Groove Radius | 0.344 INCHES NOMINAL IN |
| Groove Shape | U |
| Outside Diameter | 12.000 INCHES NOMINAL IN |
| Style Designator | WEBBED OR SPOKED |
| Groove Depth | 1.125 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Bearings | NOT INCLUDED |
| Groove Quantity | 1 |
| Unable to Decode | UNABLE TO DECODE |
| Distance From Outside Flange/rim to Hub End and Location | 0.063 INCHES NOMINAL BOTH ENDS IN |
| Counterbore Feature | NOT INCLUDED |
| Bore Diameter | 2.498 INCHES MINIMUM AND 2.500 INCHES MAXIMUM IN |
| Material | STEEL OVERALL |
| Unable to Decode | UNABLE TO DECODE |
| Face Width | 1.625 INCHES NOMINAL IN |
| Groove Width | 1.125 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 |
|---|---|
| 481556 PRIMARY | Terex American Crane Corp (USA) |
| Reference | Meaning |
|---|---|
| 481556 | 5/9 Secondary reference American Hoist and Derrick Co |
NSN 3020-00-949-5482 is a Pulley,groove, manufactured by Terex American Crane Corp, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-949-5482 has 1 manufacturer part number on file: 481556 (Terex American Crane Corp).
Key specifications for 481556: Integral Cooling Vane: NOT INCLUDED; Hub Outside Diameter: 4.750 INCHES NOMINAL BOTH ENDS IN; Bore Feature: INCLUDED; Split Hub Feature: NOT INCLUDED. 24 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.