The Pulley,groove, cataloged under National Stock Number 3020-01-017-8593, 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27 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-017-8593 |
| Item Name | Pulley,groove |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Integral Cooling Vane | NOT INCLUDED |
| Hub Outside Diameter | 2.250 INCHES MINIMUM AND 2.255 INCHES MAXIMUM AA END IN |
| Bore Feature | INCLUDED |
| Securing Method | PRESS FIT BEARING |
| Split Hub Feature | NOT INCLUDED |
| Bore Length | 1.535 INCHES MINIMUM AND 1.540 INCHES MAXIMUM IN |
| Design Form | WEBBED |
| Web/spoke Relationship to Face Centerline | OFFSET |
| Groove Radius | 0.620 INCHES NOMINAL IN |
| Groove Shape | U |
| Outside Diameter | 9.860 INCHES MINIMUM AND 9.900 INCHES MAXIMUM IN |
| Style Designator | WEBBED OR SPOKED |
| Material Document and Classification | QQ-N-281, CLASS A, COLD DRAWN FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Groove Depth | 1.185 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Bearings | NOT INCLUDED |
| Groove Quantity | 1 |
| Unable to Decode | UNABLE TO DECODE AND UNABLE TO DECODE |
| Distance From Outside Flange/rim to Hub End and Location | 0.012 INCHES MINIMUM AA END AND 0.017 INCHES MAXIMUM AA END IN |
| Counterbore Feature | NOT INCLUDED |
| Bore Diameter | 1.633 INCHES MINIMUM AND 1.634 INCHES MAXIMUM IN |
| Material | NICKEL ALLOY 400 OVERALL |
| Unable to Decode | UNABLE TO DECODE |
| Face Width | 1.535 INCHES MINIMUM AND 1.540 INCHES MAXIMUM IN |
| Groove Width | 1.416 INCHES NOMINAL IN |
| Securing Location | BOTH ENDS |
| 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 |
|---|---|
| SS409-4491172PC10 | 3/9 Design control — primary reference Naval Ship Engineering Center Philadelphia Division Submarine Antenna Quality Assurance |
NSN 3020-01-017-8593 is a Pulley,groove, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-01-017-8593: Integral Cooling Vane: NOT INCLUDED; Hub Outside Diameter: 2.250 INCHES MINIMUM AND 2.255 INCHES MAXIMUM AA END IN; Bore Feature: INCLUDED; Securing Method: PRESS FIT BEARING. 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.