Nitrile O Ring Assortment 1200 Pcs

This 1200-piece nitrile rubber O ring kit covers 24 essential metric sizes — inner diameters from 6 mm to 26 mm, with three standard cross-sections: 1.5 mm (for fine-threaded fittings), 2.4 mm (for general-purpose plumbing and auto use), and 3.1 mm (for higher-pressure applications). All rings are black, odourless, and trimmed cleanly with zero flash — reflecting strict manufacturing control. Material compliance includes resistance to aliphatic hydrocarbons, hydraulic fluids, and hot water — backed by stable physical properties across -40°C to +120°C. The kit is built for efficiency: each size occupies its own numbered grid in a heavy-duty, recyclable plastic storage case — enabling instant visual identification and preventing accidental cross-contamination during sorting. Designed specifically for UK tradespeople and EU-certified workshops, it meets common sealing needs in domestic heating systems, caravan water lines, agricultural machinery, HVAC condensate drains, and classic car restoration projects. Unlike single-material universal kits, this selection prioritises nitrile’s proven advantage in oil-rich environments — offering better long-term resilience than silicone or Viton alternatives priced far higher but unnecessary for everyday mechanical and plumbing tasks.