Techcon Buna-N O-Ring, 1/8 in ID x 1/16 in CS

Description

This Buna-N O-ring pack supplies small dispensing valve parts for Techcon valve service, fitting maintenance, and repair stock. The seal size is 1/8 in inside diameter by 1/16 in cross section, supplied as a 10 pack for technicians who rebuild compact dispensing assemblies and want matching spares on the bench before a leak interrupts production.

Where dispensing valve parts like this fit

O-rings in this size class are used where a small stem, piston, tube, or fitting face needs compression around a narrow groove. In a dispensing setup, a worn seal can show up as a slow drip, air entry, pressure loss, or inconsistent shot size. Replacing the seal during planned service is often faster than troubleshooting the same symptom repeatedly at the valve. The listed Buna-N construction, also called nitrile, is a common industrial sealing material used around petroleum oils, greases, and many shop fluids. Always confirm compatibility with the actual adhesive, cleaner, solvent, or lubricant in the station before returning the assembly to service.

The 1/16 in cross section is thin enough for compact hardware, so installation technique matters. If the old seal is removed with a sharp pick, scratches in the groove can create a new leak path. If the new ring is twisted, pinched, or stretched too far, the valve may seal during a static check but fail after repeated cycling.

How these dispensing valve parts are installed

• Pack quantity: 10 O-rings.
• Material: Buna-N rubber.
• Size: 1/8 in ID by 1/16 in cross section.
• Color: black.
• Use case: replacement seal for compatible dispensing hardware.

Clean the groove and mating surface before installation, then seat the ring evenly without rolling it. Reassemble the fitting or valve body with even pressure, and run a low-pressure check before resuming normal dispensing. Store unused rings in a clean drawer or sealed bin, away from cured adhesive chips and sharp tools. For related valves, seals, fittings, syringes, and accessories, browse Chemical Concepts dispensers, mixers, and nozzles. Techcon product family information is available from Techcon.

Need Help?

Need help confirming the right O-ring size for a dispenser rebuild? Call (800) 220-1966 or email [email protected].