RF Industries PT-401503BL (4-Pack) Blue Strain Relief RG-58/U RG-142/U

The RF Industries PT-401503BL is a pack of four blue silicone strain relief boots designed to protect the junction between coaxial connectors and their associated cables. Constructed from flexible silicone, these strain reliefs absorb mechanical stress at the point where a cable exits a connector, guarding against the repeated bending, pulling, and flexing that commonly leads to conductor fatigue, insulation cracking, and premature connector failure. Intended for use with cable types including RG-142/U, LMR-195, and RG-58/U families, they are hand-installed without special tooling, making them a practical choice for field technicians and bench assemblers alike. The distinctive blue color aids in quick visual identification of cable assemblies in complex wiring environments, supporting organized, professional installations across telecommunications, RF distribution, and related infrastructure applications.

Key features & benefits

• Silicone Construction — The flexible silicone body conforms naturally around the cable and connector interface, maintaining its protective shape across a wide range of environmental conditions without cracking or hardening over time.
• Mechanical Stress Relief — By distributing bend forces away from the critical connector-to-cable transition point, these boots significantly reduce the risk of conductor damage and intermittent connections caused by repetitive cable movement.
• Broad Cable Compatibility — Engineered to suit RG-142/U, LMR-195, and RG-58/U cable types, making them a versatile stock item for shops and field kits that work across multiple coaxial cable standards.
• Tool-Free Manual Installation — Each boot is applied by hand without requiring specialized crimping or assembly equipment, enabling fast, consistent installation in both lab and field environments.
• Color-Coded Blue Identification — The uniform blue coloring across all four pieces in the pack supports color-coded cable management schemes, allowing installers and operators to quickly distinguish specific cable runs or connector types at a glance.
• Four-Pack Quantity — Supplied in a pack of four, these strain reliefs are well suited for projects requiring multiple terminations or for replenishing field kit inventory efficiently.