Is the O-ring seal (range 6.5x1 Ã· 50.4x3.53), NBR90 suitable for fuel and oil applications?

O-ring seal (range 6.5x1 Ã· 50.4x3.53), NBR90 Format: Yes . NBR (nitrile rubber) with 90 Shore A hardness is commonly suitable for many fuel and oil applications. NBR offers good resistance to hydrocarbons (mineral oils, diesel, petrol) and lubricants, making it a standard choice for static and many dynamic sealing tasks in fuel/oil systems. However, suitability depends on service conditions: temperature range, type of fuel (especially oxygenated or biofuels), pressure, dynamic motion, and exposure time. NBR generally performs well from about -30Â°C to +100Â°C; at higher temperatures or with aggressive fuels (ethanol blends, certain biofuels, aromatic hydrocarbons, brake fluids) compatibility can degrade. Higher hardness (90 Shore A) gives better extrusion and compression set resistance but may reduce sealing at low pressures or irregular surfaces. For critical or high-temperature/chemical cases, verify compatibility with the specific fluid and operating temperatures, perform compatibility testing, or consider alternative materials (e.g., FKM/Viton for higher chemical/temperature resistance or HNBR for improved heat/ozone resistance).

Can the O-ring seal (range 6.5x1 Ã· 50.4x3.53), NBR90 withstand temperatures below -20Â°C?

O-ring seal (range 6.5x1 Ã· 50.4x3.53), NBR90 Format: NBR (nitrile) with 90 Shore is generally suitable for temperatures from about -20Â°C up to +100Â°C. At temperatures below -20Â°C its elasticity and sealing performance deteriorate: it becomes stiffer, less flexible and more prone to hardening, compression set and leakage. Short-term use slightly below -20Â°C may be possible but is not recommended for reliable dynamic or static seals. For sustained or critical low-temperature applications under -20Â°C choose a compound rated for lower temperatures (e.g. FKM, FFKM, or silicone/fluorosilicone variants) or a specially formulated low-temperature NBR.

Does the O-ring seal (range 6.5x1 Ã· 50.4x3.53), NBR90 comply with food contact regulations?

O-ring seal (range 6.5x1 Ã· 50.4x3.53), NBR90 Format: Based on the provided description. circular cross-section gasket (O-ring) for general use, material NBR (nitrile rubber) with hardness 90 Shore. compliance with food contact regulations cannot be confirmed. NBR as a polymer can be formulated in food-grade versions, but compliance depends on specific compound formulation, additives, pigments, accelerators, and manufacturing controls. To determine conformity you need documented evidence such as: - Declaration of Compliance from the manufacturer specifying which food-contact regulations are met (e.g., EU Reg. 1935/2004, EC 10/2011 for plastics where applicable, selected national rules) or specific approvals (e.g., FDA 21 CFR for food contact in the US); - Test reports showing overall and specific migration limits and suitability for intended food types and temperatures, or specific standards (e.g., EU/10/2011 not directly applicable to vulcanizates but there are positive lists and test-based demonstrations); - Compliance with relevant sector standards where used (e.g., 3-A, NSF, WRAS) if required by the application; - Information on extractables/volatiles and resistance to intended cleaning/disinfection regimes. Without these documents, you cannot assume the O-ring seal (range 6.5x1 Ã· 50.4x3.53), NBR90 Format is food-contact safe. Request the manufacturerâs written declarations and test certificates specifying the applicable regulation(s), tested conditions (food simulants, temperature, contact time) and any use limitations.

O-ring seal (range 6.5×1 ÷ 50.4×3.53), NBR90

All products, General purpose seals/

O-ring seal (range 6.5x1 ÷ 50.4x3.53), NBR90

Additional information

Maximum operating temperature [°C]	100
Minimum operating temperature [°C]	-30

Circular cross-section gasket (o-ring) for general use (range 6.5×1 to 50.4×3.53). Material: NBR, hardness 90 Shore.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
TI-UO-006,5X1-N90	O-ring 6.5x1 NBR90	-	-	In stock	Enquiry
TI-UO-007X1,5-N90	O-ring 7x1.5 NBR90	-	-	In stock	Enquiry
TI-UO-008,1X1,6-N90	O-ring 8.1x1.6 NBR90	-	-	In stock	Enquiry
TI-UO-010,82X1,78-N90	O-ring 10.82x1.78 NBR90	-	-	In stock	Enquiry
TI-UO-012,1X1,6-N90	O-ring 12.1x1.6 NBR90	-	-	In stock	Enquiry
TI-UO-012X2-N90	O-ring 12x2 NBR90	-	-	In stock	Enquiry
TI-UO-014,3X2,4-N90	O-ring 14.3x2.4 NBR90	-	-	In stock	Enquiry
TI-UO-017,13X2,62-N90	O-ring 17.13x2.62 NBR90	-	-	In stock	Enquiry
TI-UO-018,72X2,62-N90	O-ring 18.72x2.62 NBR90	-	-	In stock	Enquiry
TI-UO-025,07X2,62-N90	O-ring 25.07x2.62 NBR90	-	-	In stock	Enquiry
TI-UO-028,17X3,53-N90	O-ring 28.17x3.53 NBR90	-	-	In stock	Enquiry
TI-UO-029,82X2,62-N90	O-ring 29.82x2.62 NBR90	-	-	In stock	Enquiry
TI-UO-034,52X3,53-N90	O-ring 34.52x3.53 NBR90	-	-	In stock	Enquiry
TI-UO-036,1X3,53-N90	O-ring 36.1x3.53 NBR90	-	-	In stock	Enquiry
TI-UO-036X2,5-N90	O-ring 36x2.5 NBR90	-	-	In stock	Enquiry
TI-UO-047,22X3,53-N90	O-ring 47.22x3.53 NBR90	-	-	In stock	Enquiry
TI-UO-050,4X3,53-N90	O-ring 50.4x3.53 NBR90	-	-	In stock	Enquiry