The Pulley,groove, cataloged under National Stock Number 3020-01-485-0515, 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 Naval Sea Systems Command. Government technical data includes 25 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-485-0515 |
| Primary Part Number | 122-6602815 PC 3 |
| Item Name | Pulley,groove |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Integral Cooling Vane | NOT INCLUDED |
| Bore Feature | INCLUDED |
| Securing Method | PIN(S) |
| Split Hub Feature | NOT INCLUDED |
| Bore Length | 3.3750 INCHES NOMINAL IN |
| Design Form | WEBBED |
| Web/spoke Relationship to Face Centerline | NOT OFFSET |
| Groove Shape | V |
| Outside Diameter | 17.5937 INCHES MINIMUM AND 17.6563 INCHES MAXIMUM IN |
| Style Designator | WEBBED OR SPOKED |
| Pitch Diameter | 15.0000 INCHES NOMINAL IN |
| Groove Depth | 1.7500 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Bearings | NOT INCLUDED |
| Groove Quantity | 1 |
| Protruding Hub Characteristic | PLAIN |
| Distance From Outside Flange/rim to Hub End and Location | 0.3122 INCHES NOMINAL BOTH ENDS IN |
| Counterbore Feature | NOT INCLUDED |
| Bore Diameter | 4.7490 INCHES MINIMUM AND 4.7500 INCHES MAXIMUM IN |
| Material | STEEL OVERALL |
| Face Width | 2.7500 INCHES NOMINAL IN |
| Groove Width | 1.7500 INCHES NOMINAL IN |
| Furnished Items and Quantity | P/N 122-6694009 PC 7 BRONZE BUSHING |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 122-6602815 PC 3 PRIMARY | Naval Sea Systems Command (USA) |
| 122-6694009 PC 7 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 2210-98 | D/9 Drawing number reference only Huntington Ingalls Inc Div Newport News Shipbuilding |
| 6602815 | D/9 Drawing number reference only Naval Sea Systems Command |
| 6694009 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 3020-01-485-0515 is a Pulley,groove, manufactured by Naval Sea Systems Command, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-485-0515 has 2 manufacturer part numbers on file: 122-6602815 PC 3 (Naval Sea Systems Command), 122-6694009 PC 7 (Naval Sea Systems Command).
1 possible match (shared part number, not a government interchangeability claim): 3020-01-485-0528. Verify interchangeability with system specifications before substitution.
Key specifications for 122-6602815 PC 3: Integral Cooling Vane: NOT INCLUDED; Bore Feature: INCLUDED; Securing Method: PIN(S); Split Hub Feature: NOT INCLUDED. 25 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.