The Pulley,groove, cataloged under National Stock Number 3020-00-074-4600, 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 Arvan, Inc. Dba Aerospace Division. Government technical data includes 24 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-074-4600 |
| Primary Part Number | SMS20220-4 |
| Item Name | Pulley,groove |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Arvan, Inc. Dba Aerospace Division |
| Status | ACTIVE |
| Integral Cooling Vane | NOT INCLUDED |
| Hub Outside Diameter | 0.515 INCHES NOMINAL BOTH ENDS IN |
| Bore Feature | INCLUDED |
| Bearing Quantity | 1 |
| Split Hub Feature | NOT INCLUDED |
| Bore Length | 0.625 INCHES NOMINAL IN |
| Design Form | PLAIN |
| Groove Radius | 0.097 INCHES NOMINAL IN |
| Outside Diameter | 5.505 INCHES NOMINAL IN |
| Shaft Size for Which Designed | 0.312 INCHES NOMINAL IN |
| Style Designator | PLAIN |
| Groove Depth | 0.500 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Bearings | INCLUDED |
| Groove Quantity | 1 |
| Bearing Type | BALL |
| Unable to Decode | UNABLE TO DECODE |
| Counterbore Feature | NOT INCLUDED |
| Bore Diameter | 0.312 INCHES NOMINAL IN |
| Material | PLASTIC OVERALL |
| Unable to Decode | UNABLE TO DECODE |
| Face Width | 0.422 INCHES NOMINAL IN |
| Groove Width | 0.262 INCHES NOMINAL IN |
| 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 |
|---|---|
| SMS20220-4 | Arvan, Inc. Dba Aerospace Division (USA) |
| Reference | Meaning |
|---|---|
| ATB27-9 | 5/9 Secondary reference U.S. Government activity |
| BMP30F9 | 3/2 Design control — primary reference U.S. Government activity |
| BACP30F9 | 5/9 Secondary reference U.S. Government activity |
NSN 3020-00-074-4600 is a Pulley,groove, manufactured by Arvan, Inc. Dba Aerospace Division, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-074-4600 has 1 manufacturer part number on file: SMS20220-4 (Arvan, Inc. Dba Aerospace Division).
Key specifications for SMS20220-4: Integral Cooling Vane: NOT INCLUDED; Hub Outside Diameter: 0.515 INCHES NOMINAL BOTH ENDS IN; Bore Feature: INCLUDED; Bearing Quantity: 1. 24 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.