The Pulley,groove, cataloged under National Stock Number 3020-01-171-3383, 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 Allied Engineering and Production Corporation. Government technical data includes 29 specifications, cited from the U.S. Government catalog. The record lists 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3020-01-171-3383 |
| Primary Part Number | 4667048 |
| Item Name | Pulley,groove |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Allied Engineering and Production Corporation |
| Status | ACTIVE |
| Integral Cooling Vane | NOT INCLUDED |
| Bore Feature | INCLUDED |
| Securing Method | DRILLED HOLE |
| Split Hub Feature | NOT INCLUDED |
| Bore Length | 2.250 INCHES NOMINAL IN |
| Design Form | PLAIN |
| Unable to Decode | UNABLE TO DECODE |
| First Step Face Largest Diameter and Location | 7.250 INCHES NOMINAL BOTH ENDS IN |
| Groove Radius | 0.312 INCHES NOMINAL IN |
| Groove Shape | U |
| Outside Diameter | 19.219 INCHES NOMINAL IN |
| Distance From Outside Flange/rim to Hub End and Location | 0.719 INCHES NOMINAL BOTH ENDS IN |
| Keying Facility Type | KEYWAY |
| Quantity | 1 |
| Style Designator | PLAIN |
| Material Document and Classification | AISI 4150 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Groove Depth | 0.141 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Bearings | NOT INCLUDED |
| Groove Quantity | 1 |
| Protruding Hub Characteristic | STEPPED |
| Distance From Center of Bore to Bottom of Keyway | 2.201 INCHES NOMINAL IN |
| Unable to Decode | UNABLE TO DECODE |
| Securing Hole Quantity | 6 AND 12 |
| Bolt Circle Diameter | 6.375 INCHES NOMINAL AND 15.680 INCHES NOMINAL IN |
| Drilled Hole Diameter | 0.343 INCHES NOMINAL AND 0.750 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 | 0.724 INCHES NOMINAL BOTH ENDS IN |
| 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 |
|---|---|
| 4667048 | Allied Engineering and Production Corporation (USA) |
| 4667048 | Lake Shore Systems, Inc. (USA) |
| 4667048 | Appleton Marine Inc (USA) |
| 4667048 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 4667048 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-01-171-3383 is a Pulley,groove, manufactured by Allied Engineering and Production Corporation, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-171-3383 has 4 manufacturer part numbers on file: 4667048 (Allied Engineering and Production Corporation), 4667048 (Lake Shore Systems, Inc.), 4667048 (Appleton Marine Inc), 4667048 (Naval Inventory Control Point Mechanicsburg).
1 possible match (shared part number, not a government interchangeability claim): 2540-01-419-2027. Verify interchangeability with system specifications before substitution.
Key specifications for 4667048: Integral Cooling Vane: NOT INCLUDED; Bore Feature: INCLUDED; Securing Method: DRILLED HOLE; Split Hub Feature: NOT INCLUDED. 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.