XB-21-S-250-1250
Spring Roll Pin
SAF-Holland

Roll pin style retention device is used for quick, positive retention in hinged and actuated assemblies. It enables assembly with a simple punch or drift and provides secure, vibration-resistant anchoring while allowing straightforward disassembly when needed. The rated length is 1.75 in with a diameter of 0.38 in, which guides hole size, fit, and retention force. VMRS code 053-007-025 places this component in the roll-pin family, and category 42578 indicates its application in component hardware for SAF-Holland systems. Typical installations include hinge pins, linkage joints, and latch mechanisms where consistent engagement is required under dynamic loading. Proper driving to seat the pin squarely ensures even load distribution and resistance to migration during operation. The design supports rapid field assembly and replacement, reducing downtime during maintenance. Interaction with mating holes must be clean and aligned; inspect for wear after cycles, and replace if the pin shows elongation or deformation that could allow unwanted movement.