The Pulley,groove, cataloged under National Stock Number 3020-01-025-4154, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 21 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-025-4154 |
| Item Name | Pulley,groove |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Integral Cooling Vane | NOT INCLUDED |
| Bore Feature | INCLUDED |
| Bearing Quantity | 1 |
| Split Hub Feature | NOT INCLUDED |
| Bore Length | 0.433 INCHES MINIMUM AND 0.442 INCHES MAXIMUM IN |
| Design Form | PLAIN |
| Groove Radius | 0.109 INCHES MINIMUM AND 0.112 INCHES MAXIMUM IN |
| Groove Shape | U |
| Outside Diameter | 2.500 INCHES NOMINAL IN |
| Style Designator | PLAIN |
| Groove Depth | 0.312 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Bearings | INCLUDED |
| Groove Quantity | 1 |
| Bearing Type | SLEEVE |
| Counterbore Feature | NOT INCLUDED |
| Bore Diameter | 0.376 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN |
| Material | PLASTIC PHENOLIC OVERALL |
| Face Width | 0.433 INCHES MINIMUM AND 0.442 INCHES MAXIMUM IN |
| Groove Width | 0.250 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 |
|---|---|
| 3020833-3 | C/1 Advisory reference — outside the item-of-supply concept Gulf Coast Holdings, Inc Dba Unidynamics |
| 3020883-3 | 5/2 Secondary reference U.S. Government activity |
| 3020883-3 | 5/9 Secondary reference U.S. Government activity |
| 3020883-3 | 3/9 Design control — primary reference Gulf Coast Holdings, Inc Dba Unidynamics |
NSN 3020-01-025-4154 is a Pulley,groove, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-01-025-4154: Integral Cooling Vane: NOT INCLUDED; Bore Feature: INCLUDED; Bearing Quantity: 1; Split Hub Feature: NOT INCLUDED. 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.