3/4″ to 3/8″ – Antenna Bracket Reducer Washer Adapter Kit – NMO-38-KIT

Overview Other Details Reviews Similar Products –> Product Description 3/4″ NMO to 3/8″ UHF Antenna Bracket Reducer Washer Adapter Kit The American Radio Supply – NMO-38-KIT is a convenient antenna bracket reducer and washer adapter kit designed to convert a 3/4″ NMO mounting hole opening to a 3/8″ opening for installations using 3/8″x24 based antennas. This kit provides the necessary reduction hardware to adapt a standard 3/4″ NMO-style mounting opening for compatible 3/8″ stick style antenna mounting applications. The components are constructed from nickel-plated brass alloy for durability and corrosion resistance. Features Converts a 3/4″ NMO hole opening to a 3/8″ UHF opening Designed for use with 3/8″x24 based antennas Durable nickel-plated brass alloy construction Useful for adapting existing antenna mounting brackets Simple, compact installation hardware Ideal for CB, amateur radio, mobile radio, and other compatible antenna installations Specifications Adapter Type: 3/4″ NMO to 3/8″ UHF Application: Antenna bracket mounting adapter Material: Nickel-Plated Brass Alloy Compatible Antenna Style: 3/8″x24 based antennas American Radio Supply SKU: NMO-38-KIT What’s Included 3/4″ to 1/2″ reducing washer, f lat washer, black neoprene washer and a 1/2″ to 3/8″ white nylon reducing washer (4 pcs.) Important : Product listing is for the reducer and washers only. Antenna bracket and antenna connector are NOT included. Other Details See warranty details above Product Videos Custom Field Product Reviews Write a Review Write a Review 3/4″ to 3/8″ – Antenna Bracket Reducer Washer Adapter Kit – NMO-38-KIT Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments * 1 Review Hide Reviews Show Reviews 5 Works Perfectly! Posted by Don – N6TDM on 28th Jan 2026 I needed to have the flexibility to use a short 10/11 mtr antenna with the same mount. This works perfectly. Exactly what I needed. Excellent results.