0.375 in. ID 0.500 in. OD Aluminum Spacer at Various Lengths

This spacer is designed to fit on a shaft or screw that is 0.375 in. in diameter. Spacers help keep things in place in a multitude of ways. You can use this to slip over a shaft that is smaller than the inside diameter, between objects where it gets smashed between them with other fasteners, or help center a shaft of smaller size into a larger hole. Not seeing the length you're looking for? Consider stacking several together.

Nylon Spacer Variety Pack, 200 pcs (VEX 275-1066)

Swage Spacers - Hex & Round Swage Spacer

0.430 in. ID 0.500 in. OD 0.500 in. Long Aluminum Spacer

0.375 in. ID 0.500 in. OD Aluminum Spacer at Various Lengths - AndyMark, Inc

Ultrasonic Flaw Detection - Calibration Blocks - ASME (DAC) Cal Blocks - Ultrasonic Flaw Detection - PH Tool ASME (DAC) Style ERVW Piping Blocks - NDT Supply.com

Ruland Manufacturing - DCD21-14MM-3/8''-A - Double Disc Coupling, Clamp Style, 14mm X 0.375 Bores, 1.313 OD, 1.770 L - RS

3/8 OD Black Nylon Spacer 1 Thick, 3/8 OD, 0.166 ID, 50 pack for VEX Robotics

Aluminum 6061 Round Tube

3/8 OD Black Nylon Spacer Variety 200 Pack, 3/8 OD, 0.166 ID, 200 pack for VEX Robotics

Seastrom Manufacturing - Stand-off spacers in phenolic.

Spacers & Washers - VEX Robotics