The Amphenol 83‑1SP is a high-quality UHF (PL‑259) straight plug designed for reliable performance in RF communication systems. Built for durability and ease of assembly, this solder-type connector is ideal for low-frequency applications up to 300 MHz, including amateur radio, CB, and general RF installations. 
 
Key Features
Standard UHF (PL‑259) male connector
Designed for 50 ohm RF systems 
Solder-type termination for secure electrical and mechanical connection 
Rugged threaded coupling for dependable mating
Suitable for low-frequency applications up to 300 MHz
Compatible with RG‑8 class cables and equivalents
 
Materials of Construction
Body & Coupling Nut: Brass, nickel plated
Center Contact: Brass, silver plated
Insulator: Phenolic, Pantone 110C
 
Cable Compatibility
Designed for RG‑8 size cable groups (including RG‑213 and similar) [newark.com]
LMR‑400 is dimensionally compatible with RG‑8 class cables (drop‑in replacement) 
 
Compatibility Note:
The 83‑1SP‑1050 variant explicitly lists LMR‑400 support, ensuring proper fit for modern low‑loss coax installations