Delivery Time:3-5 days
Certification:CE,FCC,MSDS

Fuel Resistant Buna O Rings Food Grade For Aerospace / Automotive

ORK Rubber PRODUCTS CO.,LTD offers the seal industry\'s largest inventory of o-rings, which includes every standard AS568 and ISO 3601 size, and the following:

Inside Diameter from 0.031 in (0.794 mm) to 26.0 in (66.04cm) Outside Diameter from 0.094 in (2.38 mm) to 26.5 in (67.31cm) Cross Section from 0.031 in (0.794 mm) to 0.250 in (6.35mm)

In addition to standard imperial and metric sizes, ORK  also carries a wide variety of non-standard sizes. With over 8,000 different o-ring sizes in-stock, we have exactly what you are looking for and we can assure immediate delivery of any size in large or small quantities.

O-Ring Sizing Guides

AS568 Standard O-Ring Sizes  ISO 3601 Standard Metric O-Ring Sizes  All Standard and Non-Standard O-Ring Sizes

 Still have questions about finding a standard or non-standard o-ring size? Feel free to either contact us

 Easy to Order, Fastest Delivery

When you are ready to get started, submit an online RFQ to receive a quote from our dedicated sales team within 24 hours. Most likely the size and compound you require is in our inventory of over 300 Million o-rings. You receive immediate shipments with no intermediate delays. Remember: With ORK, you buy direct.

 Standard O-Ring Material Applications

 Nitrile (Buna-N) is the most widely used elastomer due to its excellent resistance to petroleum products, operating temperature range (-40°F to +257°F) and one of the best performance-to-cost values. It\'s an ideal material for aerospace, automotive, propane and natural gas applications. Special Hydrogenated Nitrile (HNBR) compounds can improve resistance to direct ozone, sunlight, and weather exposure while increasing temperature range to +300°F

ASTM D1418 Designation: NBR

ASTM D2000/SAE J200 Type, Class: BF, BG, BK, CH

ORK Compound Designation: BN

Standard Color: Black

Description: Presently the seal industry\'s most widely used and economical elastomer, Nitrile combines excellent resistance to petroleum-based oils and fuels, silicone greases, hydraulic fluids, water and alcohols, with a good balance of such desirable working properties as low compression set, high tensile strength, and high abrasion resistance.

Key Use(s): Oil resistant applications of all types. Low temperature military uses. Off-road equipment. Automotive, marine, aircraft fuel systems. Can be compounded for FDA applications.

NBR 70 TEST REPORT ASTM D2000 M2BG 714 B14 EO14 EF11 EF21 EA14 F17
PROPERITIES	SPECIFICATION	TEST RESULT	TEST METHOD
Hardness shore A	70±5	72	D2240
Tensile MPA Min	14	14.5	D12
Elongation % Min	250	315	D412
Gravity		1.263	D297
Heat resistant 70h 100℃ Hardness change	±15	+5	D573
Tensile strength%	±30	+15
Elongation Max	-50	-12
Compression Max 22h  at 100℃	25	14	D395
NO1 oil resistant
Change in hardness	-10~+5	+1	D471
Change in tensile Max	-25	-16
Change in Elongation	-45	-20
Change in Volume%	0~25	+6
Fuel resistant 70 H at 23℃
Hardness change	±10	+3	D471