The Pulley,groove, cataloged under National Stock Number 3020-00-974-7455, 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 Mack Trucks Inc Parts Opn. Government technical data includes 29 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-974-7455 |
| Primary Part Number | 302GC2210 |
| Item Name | Pulley,groove |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Mack Trucks Inc Parts Opn |
| Status | ACTIVE |
| Distance From Center of Bore to Top of Key | 0.371 INCHES NOMINAL IN |
| Integral Cooling Vane | NOT INCLUDED |
| Hub Outside Diameter | 1.250 INCHES NOMINAL AA END IN |
| Bore Feature | INCLUDED |
| Split Hub Feature | NOT INCLUDED |
| Bore Length | 1.320 INCHES NOMINAL IN |
| Design Form | PLAIN |
| Web/spoke Relationship to Face Centerline | NOT OFFSET |
| Groove Shape | V |
| Outside Diameter | 4.694 INCHES MINIMUM AND 4.744 INCHES MAXIMUM IN |
| Keying Facility Type | KEYWAY |
| Quantity | 1 |
| Style Designator | WEBBED OR SPOKED |
| Pitch Diameter | 3.915 INCHES MINIMUM AND 4.500 INCHES MAXIMUM IN |
| Groove Depth | 0.583 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Bearings | NOT INCLUDED |
| Groove Quantity | 2 |
| V Groove Angle in Deg | 36.0 |
| Keyway Width | 0.126 INCHES MINIMUM AND 0.128 INCHES MAXIMUM IN |
| Unable to Decode | UNABLE TO DECODE |
| Distance From Outside Flange/rim to Hub End and Location | 0.750 INCHES NOMINAL AA END IN |
| Counterbore Feature | NOT INCLUDED |
| Bore Diameter | 0.6688 INCHES MINIMUM AND 0.6693 INCHES MAXIMUM IN |
| Material | STEEL OVERALL |
| Unable to Decode | UNABLE TO DECODE |
| Face Width | 1.450 INCHES NOMINAL IN |
| Groove Width | 0.500 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 |
|---|---|
| 302GC2210 PRIMARY | Mack Trucks Inc Parts Opn (USA) |
NSN 3020-00-974-7455 is a Pulley,groove, manufactured by Mack Trucks Inc Parts Opn, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-974-7455 has 1 manufacturer part number on file: 302GC2210 (Mack Trucks Inc Parts Opn).
Key specifications for 302GC2210: Distance From Center of Bore to Top of Key: 0.371 INCHES NOMINAL IN; Integral Cooling Vane: NOT INCLUDED; Hub Outside Diameter: 1.250 INCHES NOMINAL AA END IN; Bore Feature: 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.