The Pulley,timing Belt, cataloged under National Stock Number 3020-01-164-7185, 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 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-164-7185 |
| Primary Part Number | 174488-002 |
| Item Name | Pulley,timing Belt |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp |
| Status | ACTIVE |
| Hub Type | SETSCREW |
| Hub Diameter | 1.215 INCHES NOMINAL IN |
| Face Pitch Designation | XL |
| Face Type | SINGLE ROW SPROCKET TEETH |
| Bore Type | SPECIFIED |
| Face Groove/tooth Quantity | 60 |
| Bore Diameter | 0.750 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY |
| Face Width | 0.219 INCHES NOMINAL 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 |
|---|---|
| 174488-002 PRIMARY | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA) |
| Reference | Meaning |
|---|---|
| 174488-002 | 5/9 Secondary reference Litton Systems Inc. Div Navigation Systems Division |
NSN 3020-01-164-7185 is a Pulley,timing Belt, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-164-7185 has 1 manufacturer part number on file: 174488-002 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp).
Key specifications for 174488-002: Hub Type: SETSCREW; Hub Diameter: 1.215 INCHES NOMINAL IN; Face Pitch Designation: XL; Face Type: SINGLE ROW SPROCKET TEETH. 9 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.