Product Overview
Amphenol RF Coaxial Straight Cable Plug for RG-174 and RG-316
Condition
Unused new old stock (NOS). Individual coaxial connector hardware set includes connector body, crimp ferrule, center contact pin, and insulator. Stamped AMPHENOL 31-315 on the coupling collar.
Same or next business day shipping from our Idaho warehouse. Reliable parts since 1999. Honest pricing, no nonsense.
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Product Overview
Amphenol 31-315 (also cataloged as 031-315 and 554-95) straight BNC male coaxial plug engineered for miniature flexible RF cables. Designed for 50-ohm transmission lines operating up to 4 GHz, featuring a quick quarter-turn bayonet lock mechanism. Constructed with a nickel-plated brass body, gold-plated center contact pin, and PTFE dielectric insulator for reliable high-frequency RF transmission.
Key Features
- 50-ohm characteristic impedance with operating frequency up to 4 GHz
- Straight male plug orientation with quarter-turn bayonet coupling collar
- Compatible with RG-174, RG-188, RG-188A, RG-316, and LMR-100A coaxial cable types
- Crimp-style outer ferrule sleeve and crimp center contact pin
- Gold-plated center pin contact for low contact resistance and signal clarity
- Nickel-plated brass outer body construction with PTFE dielectric insulator
Applications
- Assembling custom RG-316 patch cords and jumper cables for bench RF test equipment.
- Terminating flexible antenna feedlines on amateur radio gear and SDR receivers.
- Building interconnects for laboratory signal generators, oscilloscopes, and spectrum analyzers.
- Wiring prototyping hardware and low-loss RF interconnects for maker projects.
Frequently Asked Questions
What coaxial cable types are compatible with the Amphenol 31-315?
This connector fits subminiature 50-ohm coaxial cables including RG-174, RG-188, RG-188A, RG-316, and Times Microwave LMR-100A.
How is this connector assembled onto coax cable?
Cable termination utilizes a crimp outer ferrule to secure the cable shielding braid, while the center contact pin can be crimped or soldered to the center conductor.
Why buy a single Amphenol BNC connector here rather than a bulk surplus lot?
Selecting an individual genuine Amphenol unit ensures tight manufacturing tolerances, proper PTFE insulation, and a secure bayonet lock without the commitment of a large multi-pack. Shipping is $8 flat rate, free once the order passes $28, and orders leave our Idaho warehouse the same or next business day.
Nothing steadies an RF signal line quite like a properly crimped Amphenol bayonet clicking home with authority. It is the humble hardware piece that turns loose coax into a reliable bench run.
