The Pulley,groove, cataloged under National Stock Number 3020-00-901-5037, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 28 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-00-901-5037 |
| 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 | DRILLED HOLE |
| Split Hub Feature | NOT INCLUDED |
| Bore Length | 0.187 INCHES NOMINAL IN |
| Design Form | PLAIN |
| Groove Radius | 0.062 INCHES NOMINAL IN |
| Groove Shape | U |
| Outside Diameter | 0.998 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN |
| Taper Major Diameter Location | AA END |
| Style Designator | PLAIN |
| Material Document and Classification | QQ-S-763, CLASS 303, COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Groove Depth | 0.062 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Bearings | NOT INCLUDED |
| Groove Quantity | 1 |
| Securing Hole Quantity | 3 |
| Bolt Circle Diameter | 0.750 INCHES NOMINAL IN |
| Drilled Hole Diameter | 0.109 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE |
| Hole Location | ON FACE ON PULLEY |
| Counterbore Feature | NOT INCLUDED |
| Bore Diameter | 0.501 INCHES MINIMUM AND 0.503 INCHES MAXIMUM IN |
| Material | STEEL COMP 303 OVERALL |
| Face Width | 0.187 INCHES NOMINAL IN |
| Groove Width | 0.125 INCHES NOMINAL IN |
| Securing Location | PULLEY SURFACE |
| 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 |
|---|---|
| N2670-44908 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-00-901-5037 is a Pulley,groove, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-00-901-5037: Integral Cooling Vane: NOT INCLUDED; Bore Feature: INCLUDED; Securing Method: DRILLED HOLE; Split Hub Feature: NOT INCLUDED. 28 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.