Nitrile rubber - Wikipedia

Nitrile rubber, also known as nitrile butadiene rubber, NBR, Buna-N, and acrylonitrile butadiene rubber, is a synthetic rubber derived from acrylonitrile (ACN) and butadiene. Trade names include Perbunan, Nipol, Krynac and Europrene.This rubber is unusual in being resistant to oil, fuel, and other chemicals. NBR is used in the automotive and aeronautical industry to make fuel and oil handling ...

Engineering Basics: Guide to O-Rings | ERIKS shop NL

Also many military rubber specifications for fuel and oil resistant O-rings require nitrile based compounds. It should be mentioned that to obtain good resistance to low temperature, it is often necessary to sace some high temperature resistance.


NITRILE 70 DUROMETER O-RING -451. NITRILE 70 DUROMETER O-RING -451 568-451 BUNA 70 ORINGS ... COLOR : Black. DUROMETER : 70. NOMINAL ID : 11 " NOMINAL OD : 11 1/2 " PROFILE : Round. View Full Product Information and Specifications. 568-451 BUNA 70 ORINGS. $2.656 . Unit Price: -+ Quantity. Product Information-SPECIFICATIONS. The most widely used ...

Literature | Global O-Ring and Seal

Global O-Ring and Seal, LLC is a master distributor of O-Rings, Backup Rings, X-Rings, Cord Stock, and related seals, servicing industrial distributors worldwide. We stock all major compounds including Buna (Nitrile), Viton (FKM), EPDM, Silicone, Teflon, Aflas, etc.

Mil-Spec O-Rings - EAR - All Seals

Nitrile: 70: 15: Mil Spec O-ring: NAS1611: NAS1611-XXX: NAS1613: Phosphate ester hydraulic fluid (Skydrol) 250: Ethylene Propylene NAS1612: NAS1612-9YY: NAS1613 250: Ethylene Propylene: 80: Unlimited Mil Spec O-ring: NAS617: NAS617-YY: MIL-R-7362: Synthetic diester jet engine lubricants (MIL-L-7808) 257: Nitrile: 70: 15: Tube Fitting Boss O ...

O-Ring Size Chart for U.S. & Metric Standard Sizes

The proper o-ring size is a fundamental aspect of proper o-ring performance. Whether your application conforms to U.S., Japanese JIS, British BS, or Common Metric sizing for o-rings, these o-ring size charts will help you locate the right o-ring size. If the o-ring, quad-ring, x-ring or square-ring you need doesn't fit these standards, custom ...

Buna O-Rings | Nitrile O-Ring | Buna-N O-Ring

Buna-N (also known as nitrile or NBR) is a synthetic rubber material. Its versatility makes it an ideal material for o-rings, seals, gaskets, and custom molded components for all industries and applications.. Nitrile is unique among synthetic rubbers in that it is generally resistant to chemicals such as oil and fuel, among other substances such as mineral and vegetable oils, diluted acids ...


standard P.A.I. O-ring sire. Dual turn rings conform to MS 28782 and match the dash numbers of an AN 6227 series of O-rings. MS 28783 back-up rings match the dash numbers an AN 6230 O-rings. Good practice is to use a back-up ring on either side of the O-ring, even though the pressure on the ring may be from one side only. The only time you


NITRILE 70 DUROMETER O-RING -348. NITRILE 70 DUROMETER O-RING -348 568-348 BUNA 70 ORINGS ... COLOR : Black. DUROMETER : 70. NOMINAL ID : 4 3/8 " NOMINAL OD : 4 3/4 " PROFILE : Round. View Full Product Information and Specifications. 568-348 BUNA 70 ORINGS. $0.571 . Unit Price: -+ Quantity. Product Information-SPECIFICATIONS. The most widely ...

O-Ring Design Guide -

Machining Specifications O-Ring Design Guide O-Ring Gland Types O-rings are primarily used to prevent the loss of a fluid or gas. However, O-rings can be used as dust seals, drive belts or on rotating shafts. Most O-ring seals can be classified into one of the …

Nitrile O-Rings, Buna O-Rings, NBR O-Rings

Nitrile O-Rings » NBR O-Rings and Buna O-Rings Nitrile is the most widely used elastomer in the seal industry, and commonly used in o-ring and sealing applications. The popularity of nitrile is due to its excellent resistance to petroleum products and its ability to be compounded for service over a temperature range of -22°F to 212°F.

Understanding O-ring Sizes and Tolerances

An O-ring is a solid-rubber seal shaped like a doughnut or torus. When compressed between mating surfaces, an O-ring blocks the passage of liquids or gases. Parco O-rings are available in a wide range of standard and non-standard sizes that are suitable for nearly all sealing applications. Two dimensions describe the size of an O-ring: its

Nitrile / NBR | O-Ring

44 This Nitrile 70 durometer (70A) specifications chart will help you determine if these Nitrile …

Technical Handbook O-rings 5. Designing with Rubber

Technical Handbook O-rings Lower compression set values indicate improved remaining seal capacity. Compression set values generally increase with increased temperature and time. For O-rings the minimum squeeze should be about .007 inch. (0,175mm). The reason is that with a very light squeeze almost all elastomers quickly take compression set.

KOOTANS 1200Pcs Nitrile Rubber O Ring Kit 24 Sizes O Rings ...

KOOTANS 1200Pcs Nitrile Rubber O Ring Kit 24 Sizes O Rings Assortment Kit Set Sealing Washer NBR Metric o-Ring Assortment for Plumbing, Gas, ... Specification Met: Style: 1200pcs o rings kit UNSPSC Code: 31410000 UPC: 682365626936 See more. New (2) from $18.99 FREE ...

Nitrile O-Rings | Nitrile (NBR) O-Ring Seals | Polymax UK

FKM (Viton®) O-rings have excellent chemical resistance and can be used at temperature range of between 15°C and 200°C. Although generally more expensive than NBR (Nitrile) O-rings, FKM has found wide acceptance in the aircraft, automotive and chemical industries. The terms FPM, FKM and Viton® can lead to incorrect interpretations.

AS-568 Standard O-Rings

* Shrinkage Size Adjustment: Various O-Ring compounds exhibit different shrinkage rates during molding. The normal O-Ring sizes herein shown are based upon a 70 Durometer Nitrile standard. For other O-Ring materials, be sure to consult your Apple representative. O-Ring Gland Design for Dynamic Seals O-Ring Gland Design for Static Seals

Nitrile O-ring Manufacturers Suppliers | IQS Directory

Find nitrile o-ring companies that can design, engineer, and manufacture nitrile o-rings to your specifications. Peruse our website to review and discover top nitrile o-ring manufacturers with roll over ads and complete product descriptions. Connect with the nitrile o-ring companies through our hassle-free and efficient request for quote form.

Mil-Spec O-Rings - OringsUSA

Mil-Spec O-Rings Our Government Cage Code is: 10464Quality Assurance per: MIL-I-45208APackaging per MIL-P-4861 available per requestSee Mil-spec Catalog Military Specification O-Rings need only NSN (National Stock Number) or the Military specification Prefix, plus the AS568 dash number (size). No other description is needed to assure exact conformance to the specification. …

Nitrile O-Rings |NBR O Rings | Eastern Seals Ltd

The nitrile o-ring is commonly referred to as a Buna o-ring, or NBR o-rings. We offer a selection of both the standard AS568 o-ring and the metric o-ring. About Nitrile O-rings. Nitrile rubber (NBR) is the general term for Acrylonitrile Butadiene Copolymer. Nitrile is …

O-Ring Shelf Life | Global O-Ring and Seal

O-Ring Shelf Life Compliance Standard. Global O-Ring and Seal adheres to the SAE International Aerospace Standard AS5316 for all elastomer product shelf life and storage conditions. Previously known as ARP5316 (Recommended Practice), this standard is based upon both cumulative studies and industry input regarding practical storage limits and FIFO requirements.

Nitrile O-Rings | McMaster-Carr

X-Profile Oil-Resistant Buna-N O-Rings. Also known as Quattro Seals and X- rings, these X-profile O-rings have four points of contact for a better seal in dynamic applications than round-profile O- rings. They also require less compression to make a seal, so they offer a longer service life. Double X-Profile Oil-Resistant Buna-N O-Rings.

O-Rings - Standard AS568, ISO 3601 | Apple Rubber Products

O-Rings are typically called out by the inner diameter of the torus and the diameter of the round cross-section. Thus, for an AS568-010 size 70 shore A, Nitrile would be: 0.239 x 0.070 70 BN. O-Ring Sizing Guides. For standard sizes, aerospace standard AS568 and ISO 3601 for metric sizes are used to give the dimension and tolerance.

Nitrile Rubber (NBR, HNBR, HSN ) O-rings | Engineering360

000 Nitrile O-Rings -- N70 from Hi-Tech Seals, Inc. The U.S. Air Force first regulated O-ring sizing under the system AS-568. A properly designed O-ring groove allows the O-ring to be squeezed diametrically out-of-round even before the application of pressure.

Parker Hannifin Corporation

O-Ring & Engineered Seals Division 2360 Palumbo Drive Lexington, KY 40509 Office 859 269 2351 Reference: Rubber Shelf Life Due to lingering confusion concerning shelf life of elastomer seals and AS5316, the O-Ring Division is Issuing this letter for all Parker Distributors, Territory Sales Managers, and Regional Sales Managers.

EPDM Rubber & Other Common O-Ring Materials

Some of the common types of O-ring materials include PTFE, Nitrile (Buna), Neoprene, EPDM Rubber and Fluorocarbon (Viton) . Silicone and Kalrez® O-ring materials are also widely used, especially in high temperature applications. Contact us for more information about our O-ring materials or request a quote on your custom application today.

O-Ring Material Chart Rubber Selection Guide Quick Reference

O-Ring Material Chart - Quick Selection Guide ... (Nitrile) Order O-rings Online : Standard: -35°F to 250°F Specialty: -70°F to 275°F : Silicone Greases / Oils ... ranges presented above are approximations for dry air service only and should not be used to determine design specifications or end-use temperature limits. Actual temperature ...

Military specification compounds - OringsUSA

Military Specifications: MIL-SPEC. AN123851 THRU AN123950. AMS 7274 O-Rings used for aircraft lubricating oils @ -40 to 300F. Nitrile. AN123951 THRU AN124050. 7270 For use in aircraft fuels both piston engine (gasoline) and jet (jet fuels) Nitrile. AN6225. MIL-P-5516 V-RINGS Nitrile 70. AN6226.

Metric O-Ring Size Chart | Metric O-Rings |

Use the metric o-ring size chart to find common metric o-ring sizes by cross section, inside diameter, and outside diameter. In addition to standard metric o-ring sizes, thousands of non-standard metric o-rings sizes are available in stock or can be custom-made within a …

Carboxylated Nitrile (XNBR) - Parker Hannifin Corporation

Carboxylated Nitrile (XNBR) is a special type of nitrile polymer that exhibits enhanced tear and abrasion resistance. For this reason, XNBR based materials are often specified for dynamic applications such as rod seals and rod wipers. Heat resistance. • Up to 100°C (212°F) with shorter life @ 121°C (250°F). Cold flexibility.

225 Piece Nitrile O-Ring Assortment - Harbor Freight Tools

This handy assortment of O-rings includes 18 of the most commonly used SAE sizes to accommodate a wide variety of applications! The nitrile O-rings are resistant to heat, high/low temperature, air, water, petroleum products, mineral oil and hydraulic fluids, natural gases, kerosene, silicon fluids, non-aromatic fuels and solvents.

Buna-N O-rings | High Quality Nitrile O-Ring Seal and ...

Buna-N (Nitrile) O-Rings. Nitrile butadiene rubber (NBR) is a family of unsaturated copolymers of 2-propenenitrile and various butadiene monomers (1,2-butadiene and 1,3-butadiene).The additives used to accomplish this are NOT always compatible with Buna-N and has resulted in the auto industry upgrading o-rings to Viton® elastomers.

Nitrile 90, Nitrile 90A, Nitrile 90 Durometer - Mykin Inc

This Nitrile 90 durometer (90A) specifications chart will help you determine if these Nitrile material properties will be compatible with your rubber or O-ring seal application. We can also change the formulation of the rubber so that the specifications meet your needs.

O-rings Specifications | Engineering360

O-ring is a 3-digit AS568 Standard for straight thread tube fittings (AS568A (or B) -901 and higher). "BS" part numbers are British Standard Metric O-rings, per BS 1806. "G," "P," "S" and "V" part numbers are Japanese Industrial Standard (JIS) Metric O-Rings. Slightly tighter standard size than AS568.