The Pulley,groove, cataloged under National Stock Number 3020-01-165-8380, 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 Appleton Marine Inc. Government technical data includes 29 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3020-01-165-8380 |
| Primary Part Number | 4667047 |
| Item Name | Pulley,groove |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Appleton Marine Inc |
| Status | ACTIVE |
| Integral Cooling Vane | NOT INCLUDED |
| Bore Feature | INCLUDED |
| Split Hub Feature | NOT INCLUDED |
| Bore Length | 2.250 INCHES NOMINAL IN |
| Design Form | PLAIN |
| Groove Radius | 0.250 INCHES NOMINAL IN |
| Groove Shape | U |
| Outside Diameter | 19.219 INCHES NOMINAL IN |
| Keying Facility Type | KEYWAY |
| Quantity | 1 |
| Style Designator | PLAIN |
| Material Document and Classification | AISI 4150 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Groove Depth | 0.219 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Bearings | NOT INCLUDED |
| Groove Quantity | 1 |
| Protruding Hub Characteristic | PLAIN |
| Distance From Center of Bore to Bottom of Keyway | 2.201 INCHES NOMINAL IN |
| Keyway Width | 0.502 INCHES NOMINAL IN |
| Unable to Decode | UNABLE TO DECODE |
| Distance From Outside Flange/rim to Hub End and Location | 1.688 INCHES NOMINAL BOTH ENDS IN |
| Counterbore Feature | NOT INCLUDED |
| Bore Diameter | 3.937 INCHES NOMINAL IN |
| Material | STEEL COMP 4150 OVERALL |
| Unable to Decode | UNABLE TO DECODE |
| Furnished Items | KEYING FACILITY |
| Face Width | 0.562 INCHES NOMINAL IN |
| Groove Width | 0.562 INCHES NOMINAL IN |
| Lightening Hole | 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 |
|---|---|
| 4667047 PRIMARY | Appleton Marine Inc (USA) |
| 4667047 PRIMARY | Allied Engineering and Production Corporation (USA) |
| 4667047 PRIMARY | Lake Shore Systems, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 4667047 | D/9 Drawing number reference only U.S. Government activity |
NSN 3020-01-165-8380 is a Pulley,groove, manufactured by Appleton Marine Inc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-165-8380 has 3 manufacturer part numbers on file: 4667047 (Appleton Marine Inc), 4667047 (Allied Engineering and Production Corporation), 4667047 (Lake Shore Systems, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 2540-01-419-2025. Verify interchangeability with system specifications before substitution.
Key specifications for 4667047: Integral Cooling Vane: NOT INCLUDED; Bore Feature: INCLUDED; Split Hub Feature: NOT INCLUDED; Bore Length: 2.250 INCHES NOMINAL IN. 29 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.