Dust caps are one-piece blind nuts used to protect threads and keep contamination from cylinder valves. CGA thread specifications are used, but they do not make a gas tight seal.
Unit of Measure

Specifications

CGA Standard

N/A 300

Application

N/A Ethyl Chloride Acetylene

Material

N/A Brass

Connection

N/A .830"-14NGO-RH-INT

Part

N/A Cap Chain