K&S Engineering 1147 3/16"x36" Round Brass Tube with .014 Wall 6 Pack Helicopter Z Scale - Standard DC

Z Scale - Standard DC

Atlas Gold 40005503 N Scale ALCo RS-3 Diesel Erie Lackawanna EL 1013 DCC LokSound

BLI (Broadway Limited Imports) 7284 N Scale 40' USRA Boxcar Union Pacific  UP

heavy duty (left & right)/ portal drive input gear

all Class I's use at least some AC units and most are adding mainly AC units going forward

K&S Engineering 1147 3/16"x36" Round Brass Tube with .014 Wall 6 Pack Helicopter Z Scale - Standard DCK&S Engineering 1147 3 16"x36" Round Brass Tube with . 014 Wall 6 Pack 3 16" OD x 0. 014" Wall x 36" Long Round brass tubing is a popular material choice for a wide range of applications. Brass is a highly durable metal with excellent corrosion resistance, making it ideal for use in harsh environments. Additionally, brass tubing has high thermal conductivity, making it an excellent choice for use in heat exchangers, radiators, and other applications