O ring seal; NBR; Thk: 3.5mm; ØInn: 21mm; black; -30÷100°C 01-0021.00X 3.5 ORING 70NBR seals Technical specifications Manufacturer: ORING USZCZELNIENIA TECHNICZNE Mounting element type: O-ring seal Inner diameter: 21mm Operating temperature: -30...100°C Price suggestions / discounts Some items have a price suggestion function. You are welcome to use this when purchasing more than 10 of the same items. Below this number, our software automatically rejects the price proposal. If there is no price suggestion function, or you want to purchase more than 10 different items, please contact us. Our items are all packed in the specified number of items. You can therefore only order multiples of these packages of an item. Unfortunately, it is not possible to mix different items within the specifie