ZDBB Nitrile O-Ring Assortment Kit 1540 Pc — 32 Metric Sizes (4–50 mm) with 4 Precision Picks, Organized Case

The ZDBB 1540-piece nitrile O-ring assortment is a complete metric kit of 32 sizes and replacement picks designed to repair seals across plumbing, automotive, and industrial applications.

This kit consolidates dozens of commonly used O-ring sizes into a single, organized storage box so you can quickly match and replace worn seals without repeated trips to the hardware store. Made from commercial-grade nitrile (NBR), the rings offer wide temperature tolerance and resistance to oils and weathering—useful for everything from faucet leaks to pressure-washer fittings. The set also includes four precision picks to remove and seat rings safely, plus labeled compartments so parts remain easy to find.

Which sizes are included and how many pieces of each size will I find?

The assortment covers 32 metric outer diameters from 4 mm up to 50 mm and multiple thicknesses so you can match inner and cross-section dimensions. With a total of 1540 pieces, it supplies spares for frequent maintenance and larger repair jobs.

• OD range: 4, 6–14, 16–28, 30, 35, 38, 40, 45, 50 mm
• Thicknesses included: 1.0, 1.5, 2.0, 2.4, 3.1, 3.5 mm
• Total pieces: 1540 assorted O-rings organized by size
• Clearly labeled compartments for fast selection

How durable are these O-rings and what environments do they work in?

Constructed from nitrile butadiene rubber (NBR), these O-rings resist oil, grease, and many common fluids while keeping elasticity over a wide temperature span. They’re suitable for mechanical seals used in household plumbing, automotive components, and many industrial fittings, though they’re not formulated for some aggressive chemicals like strong ketones or chlorinated solvents.

• Operating temperatures roughly -40°F to +248°F (-40°C to +120°C)
• Good ozone and weather resistance for outdoor and marine use
• Commercial-grade nitrile provides oil and fuel resistance
• Not intended for specialty chemical service without compatibility check

What’s included in the kit besides O-rings and how do the tools help?

Along with the O-rings, ZDBB supplies a four-piece pick and hook set with ergonomic handles and precision tips to make removal and installation easier and safer. The tool shapes—straight, 45°, 90°, and full hook—allow access to recessed grooves and fragile components without damaging seating surfaces.

• Four precision picks: straight, 45°, 90° and full hook
• High-torque acetate handles for firm control and comfort
• Helpful for clearing grooves, extracting old seals, and positioning new rings
• Picks reduce risk of nicking housings or deforming O-rings

How is the set packaged for storage and long-term use?

The O-rings are sorted into a rigid plastic box with labeled sections so parts stay separated and protected from dust or loss. The box keeps inventory visible and compact, making it easy to restock specific sizes and transport the kit to job sites or workshops.

• Sturdy plastic storage case with fitted compartments
• Labeled paper inserts identify each size for fast selection
• Compact footprint fits on a workbench or in a toolbox
• Designed for months or years of service and repeated use

Who this kit is for: The ZDBB 1540-piece nitrile O-ring assortment is ideal for DIYers, plumbers, mechanics, boat owners, and maintenance technicians who need a broad range of metric seal sizes on hand. It’s especially useful if you perform frequent small repairs, manage multiple pieces of equipment, or want a one-stop supply of O-rings and removal tools for workshop or fieldwork. Before use, confirm chemical compatibility for specialized fluids or extreme service environments.