The Pulley,groove, cataloged under National Stock Number 3020-00-103-9993, 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 Brandsafway Services Llc. Government technical data includes 26 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-00-103-9993 |
| Primary Part Number | C51017-3 |
| Item Name | Pulley,groove |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Brandsafway Services Llc |
| Status | ACTIVE |
| Integral Cooling Vane | NOT INCLUDED |
| Hub Outside Diameter | 3.000 INCHES NOMINAL BB END IN |
| Hub Outside Diameter | 3.062 INCHES NOMINAL AA END IN |
| Bore Feature | INCLUDED |
| Bearing Quantity | 1 |
| Split Hub Feature | NOT INCLUDED |
| Bore Length | 3.500 INCHES NOMINAL IN |
| Design Form | WEBBED |
| Groove Radius | 0.375 INCHES NOMINAL IN |
| Outside Diameter | 8.250 INCHES NOMINAL IN |
| Style Designator | WEBBED OR SPOKED |
| Groove Depth | 0.625 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Bearings | INCLUDED |
| Groove Quantity | 1 |
| Protruding Hub Characteristic | PLAIN |
| Bearing Type | SLEEVE |
| Unable to Decode | UNABLE TO DECODE AND UNABLE TO DECODE |
| Surface Treatment | PAINT |
| Counterbore Feature | NOT INCLUDED |
| Bore Diameter | 1.750 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| Unable to Decode | UNABLE TO DECODE |
| Face Width | 1.125 INCHES NOMINAL IN |
| Groove Width | 0.750 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 |
|---|---|
| C51017-3 PRIMARY | Brandsafway Services Llc (USA) |
| Reference | Meaning |
|---|---|
| C51017-2 | 5/9 Secondary reference Brandsafway Services Llc |
NSN 3020-00-103-9993 is a Pulley,groove, manufactured by Brandsafway Services Llc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-103-9993 has 1 manufacturer part number on file: C51017-3 (Brandsafway Services Llc).
Key specifications for C51017-3: Integral Cooling Vane: NOT INCLUDED; Hub Outside Diameter: 3.000 INCHES NOMINAL BB END IN; Hub Outside Diameter: 3.062 INCHES NOMINAL AA END IN; Bore Feature: INCLUDED. 26 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.