The Pulley,groove, cataloged under National Stock Number 3020-01-241-6904, 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 Mcmaster-Carr Supply Co. Government technical data includes 21 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-241-6904 |
| Primary Part Number | 3087T11 |
| Item Name | Pulley,groove |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Mcmaster-Carr Supply Co |
| Status | ACTIVE |
| Integral Cooling Vane | NOT INCLUDED |
| Bore Feature | INCLUDED |
| Split Hub Feature | NOT INCLUDED |
| Bore Length | 0.518 INCHES NOMINAL IN |
| Design Form | PLAIN |
| Groove Radius | 0.172 INCHES NOMINAL IN |
| Groove Shape | U |
| Outside Diameter | 3.250 INCHES NOMINAL IN |
| Style Designator | PLAIN |
| Groove Depth | 0.344 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Bearings | NOT INCLUDED |
| Groove Quantity | 1 |
| Counterbore Feature | NOT INCLUDED |
| Bore Diameter | 0.479 INCHES NOMINAL IN |
| Material | IRON MALLEABLE OVERALL |
| Unable to Decode | UNABLE TO DECODE |
| Face Width | 0.500 INCHES NOMINAL IN |
| Groove Width | 0.250 INCHES NOMINAL IN |
| Furnished Items and Quantity | WOOD SCREW,10 |
| 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 |
|---|---|
| 3087T11 PRIMARY | Mcmaster-Carr Supply Co (USA) |
NSN 3020-01-241-6904 is a Pulley,groove, manufactured by Mcmaster-Carr Supply Co, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-241-6904 has 1 manufacturer part number on file: 3087T11 (Mcmaster-Carr Supply Co).
Key specifications for 3087T11: Integral Cooling Vane: NOT INCLUDED; Bore Feature: INCLUDED; Split Hub Feature: NOT INCLUDED; Bore Length: 0.518 INCHES NOMINAL IN. 21 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.