The Pulley,groove, cataloged under National Stock Number 3020-00-984-5115, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 27 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-984-5115 |
| Item Name | Pulley,groove |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Integral Cooling Vane | NOT INCLUDED |
| Bore Feature | INCLUDED |
| Securing Method | THREADED HOLE(S) |
| Split Hub Feature | NOT INCLUDED |
| Bore Length | 0.875 INCHES NOMINAL IN |
| Design Form | PLAIN |
| Groove Shape | V |
| Outside Diameter | 4.750 INCHES NOMINAL IN |
| Style Designator | PLAIN |
| Groove Depth | 0.688 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Bearings | NOT INCLUDED |
| Counterbore Depth | 0.250 INCHES NOMINAL IN |
| Groove Quantity | 1 |
| Counterbore Location | AA END |
| V Groove Angle in Deg | 34.0 |
| Counterbore Diameter | 2.750 INCHES NOMINAL IN |
| Securing Hole Quantity | 4 |
| Thread Size | 5/16-18 |
| Hole Location | EQUALLY SPACED ON 1.912 IN.DIA BOLT CIRCLE IN |
| Counterbore Feature | INCLUDED |
| Bore Diameter | 1.359 INCHES MINIMUM AND 1.360 INCHES MAXIMUM IN |
| Material | STEEL OVERALL |
| Face Width | 0.875 INCHES NOMINAL IN |
| Groove Width | 0.654 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN |
| Securing Location | BB END |
| 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 |
|---|---|
| 0642853-6 | 5/9 Secondary reference U.S. Government activity |
| 0642853 | 3/2 Design control — primary reference U.S. Government activity |
| 642853 | 5/9 Secondary reference U.S. Government activity |
NSN 3020-00-984-5115 is a Pulley,groove, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-00-984-5115: Integral Cooling Vane: NOT INCLUDED; Bore Feature: INCLUDED; Securing Method: THREADED HOLE(S); Split Hub Feature: NOT INCLUDED. 27 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.