O‑ring 73x5 mm NBR 70 ShA - Nitrile Rubber Sealing Ring (Pack of 1)

O‑ring 73x5 mm NBR 70 ShA - Nitrile Rubber Sealing Ring (Pack of 1)

The O‑ring 73x5 mm NBR 70 ShA is a premium-quality oil-resistant sealing ring, crafted from durable nitrile rubber (NBR). Its inner diameter of 73 mm and cross-section of 5 mm comply with DIN 3771 standards. With hardness at 70 Shore A, this O‑ring offers excellent resistance to petroleum oils, hydraulic fluids, fuels, and grease—all common in industrial and automotive settings paulbhardware.com+12o-ring-stocks.eu+12shop.hansa-flex.us+12123bearing.eu.

Key characteristics:

• Material: NBR - ideal for oil, fuel, grease resistance shop.sigmapolymergroup.com

• Hardness: 70 ShA - ensuring durability under mechanical stress gteek.com+13gteek.com+13docs.rs-online.com+13

• Operating Range: −30 °C to +100 °C (occasionally +120 °C)

• Applications: Hydraulic seals, fuel systems, pump joints, valves, and general machinery replacement parts

❓ FAQ

Q1: What is the standard for O‑ring 73x5 mm?
This size conforms to DIN 3771, a standard for metric O‑ring profiles.

Q2: Why choose NBR 70 ShA material?
It provides optimal oil, fuel, and grease resistance, plus a balanced hardness for longevity and seal integrity.

Q3: What temperature can it withstand?
Suitable for −30 °C to +100 °C, with some formulas usable up to +120 °C in short bursts

Q4: Is this sold in bulk?
No - this listing is for 1 piece, perfect for targeted repairs and stocking individual seals.

Q5: Where is it stored and how fast delivery?
📍 Warehouse and store: Lublin, ul. Smoluchowskiego 1, building 4
🚚 24 h delivery across Poland and internationally

🗝️ Keywords

o‑ring 73x5, NBR 70 ShA o‑ring, oil-resistant seal, nitrile rubber ring, DIN 3771 o‑ring, industrial sealing ring, simmering.pl