Fisnar Acrylic Bullet Nib

The Fisnar 381-8425-AB is an acrylic bullet-style replacement nib designed for Fisnar Flow-Seal pens. It is commonly used with 10 ml dispensers like the FV-0100 and FPA-10 spring-loaded pens. The bullet tip shape enables controlled bead dispensing without scratching or piercing surfaces, making it ideal for precision fluid application. Usage Guidelines: *Installation: Remove the existing nib and securely insert the new 381-8425-AB into the pen body. *Filling: Leave an air gap (approximately 19 mm from the top of the reservoir) to allow proper air priming. *Priming: Press the pen vertically against a surface until fluid begins to flow evenly. *Replacement: Swap out the nib when reduced flow, wear, or clogging occurs for optimal performance.