The O-Ring Specialists

Order O-Rings Online! Contact a Sales Consultant


MATERIALS FROM COMMODITY TO SPECIALTY:

Corrosive

O-Ring Customization Examples:

  • Nearly Any Size Without Tool Fees
  • Any color or durometer Hardness
  • Medical Grade, USP Class VI, FDA, Drinking Water NSF-61, 3A
  • EMI Shielding, Conductive, Metal Detectable
  • Explosive Decompression
  • Semiconductor
  • Nuclear
  • High Temperature
  • High Pressure
  • Chemical Resistant
  • Internal or Surface Lubrication
  • Specialty Chemical Resistance
  • Extended Temperature Performance
  • EMI Shielding RFI Conductive
  • Coatings and Treatments
  • Specialty Bagging, Labeling, Marking, Kitting or inspection

Marco Rubber Markez Perfluoroelastomers Logo

Markez® Next generation FFKM perfluoroelastomer.Compare properties and cost to Kalrez® and Chemraz®.

EXPERIENCE THE MARCO ADVANTAGE:

Need parts fast?

Millions of O-Rings and seals available for same day shipping supplemented by an integrated worldwide network. Emergency production runs often delivered faster than some take to process specialty quotes. Our experienced team responds to basic requests within hours if not minutes and complex same day or next day.

Custom size or specialty material

Nearly all custom size O-Rings, washers, square rings, and X-Rings in almost every material are supplied without tooling fees. We design and manufacture custom shapes and develop specialty materials to deliver a performance advantage.

Live customer service

Communicate directly with our dedicated team of experienced professionals empowered to find creative ways to deliver service solutions. Voice calls are answered by a live person and we respond to email in hours if not minutes.

Engineering assistance

The Marco sales team is backed by expert engineers available for on demand conference calls to offer application specific material and design support.



O-Ring Size Charts
USA Parker 2- AS568A, JIS Japanese, Common Metric, BS British
Groove Design Assistance
Groove Design Charts and Considerations
Material Comparison Guide
Elastomer Materials vs. Common Application Environments
Chemical Compatibility Guide
Fluid Compatibility Ratings for Common Elastomer Materials.
Mil-Spec Reference Chart
A Chart of the Common Military Specifications
O-Ring Failure Analysis
Images and Descriptions of Common Failures

Popular Material Comparison Guide

Don't see what you need?

Please contact an application engineer for assistance in selecting the compound that provides the best combination of performance and price for your specific application.


Marco CPD#
Base Material
Color
Duro (Shore A)
Relative Price
Typical Inventory Level
High Temp (F)
Low Temp (F)
Steam < 300 F
Steam < 400 F
Compression Set
Chemical & Solvents
Sunlight, Ozone, UV
Wear Abrasion
Permeation Vacuum
Petroleum Oils &
Hydraulics
Fuels & Gas
Brake Fluids
1 = Great    2 = Good    3 = Fair    4 = Poor
Scroll Down for More
                                   
FFKM FFKM, Kalrez®, Markez®, Chemraz®, Simriz®, Perlast®, Parfluor®, FFKM, Perfluoroelastomer Many Many O-ring Material Price 6 Varies 625 -40 1 2 2 1 1 2 2 1 1 3
High performance mateiral for ultimate chemical and temperature resistance. Kalrez®, Markez, Chemraz®, Simriz®, Perlast®, Parfluor® FFKM Perfluoroelastomer compounds available, or contact us with specific requirements.
B1000 BUNA-N (NBR) Nitrile Black 70 O-ring Material Price 1 Very High 250 -30 4 4 2 4 4 2 2 1 2 4
Lowest cost highest inventory general purpose commodity NBR compound(available in nearly any color and durometer)
B1001 BUNA-N (NBR) Nitrile Black 90 O-ring Material Price 2 High 250 -30 4 4 2 4 4 2 2 2 2 4
General purpose NBR, higher pressure applications
B1002 BUNA-N (NBR) Nitrile Black 70 O-ring Material Price 2 Med 250 -30 4 4 2 4 4 2 2 2 2 4
FDA Compliant NBR per 21 CFR 177.2600 for food contact and some medical uses
B1006 BUNA-N (NBR) Nitrile Black 50 O-ring Material Price 2 Med 250 -30 4 4 3 4 4 2 2 2 2 4
General purpose softer than standard NBR to help seal rough or warped glands and or lower closure force applications
B1083 BUNA-N (NBR) Nitrile Black 70 O-ring Material Price 2 Med 275 -65 4 4 2 4 4 2 2 1 2 4
Higher performance NBR , Improved lower and higher temperature resistance and oil resistance at higher temperature than standard NBR.  Similar to Parker N0794-75 and M83461
B1105 BUNA-N (NBR) Nitrile Black 70 O-ring Material Price 4 Low 250 -30 4 4 3 4 4 2 2 2 2 4
Metal detectable NBR for contamination detection sensors, FDA Compliant per 21 CFR 177.2600 for food contact and some Life Sci uses (additional colors available)
M1000 BUNA-N (NBR) Nitrile Black 70 O-ring Material Price 3 Med 275 -65 4 4 2 4 4 2 2 1 1 4
Military Specification Mil-Spec AMS-P-25732 , formerly MS28775-### per Mil-P-25732C-(1)
M1001 BUNA-N (NBR) Nitrile Black 75 O-ring Material Price 3 High 275 -65 4 4 2 4 4 2 2 1 1 4
Military Specification Mil-Spec AMS-P-83461 F ormerly M83461/1-### per MIL-P-83461B#3, improved low temp and hydraulic fluid resistance
R1001 HNBR Hydrogenated Nitrile Black 70 O-ring Material Price 3 Med 325 -30 2 4 2 3 2 2 2 1 1 4
General purpose HNBR higher and lower temperature resistance and improved chemical and Freon resistace than tradtional NBR, compatible with most flex fuels
R1008 HNBR Hydrogenated Nitrile Black 90
O-ring Material Price 4
Low
350 -12 2 4 2 2 2 2 2 1 1 4
Improved explosive decompression resistance HNBR for higher pressure applications in the Oilfield Industry, Norsok M-710 Compliant.
V1000 FKM Viton® (A) Fluorocarbon Black 75 O-ring Material Price 4 Very High 437 -15 3 4 1 2 1 2 2 1 1 4
Lowest cost highest inventory general purpose commodity FKM (available in nearly any color and durometer)
V1002 FKM Viton® (A) Fluorocarbon Black 75 O-ring Material Price 5 High 437 -15 2 4 1 2 1 2 2 1 1 4
Military Specification Mil-Spec AMS-R-83248 M83248/1-### per Mil-R-83248 TY-1 CL-1
V1003 FKM Viton® (A) Fluorocarbon Brown 75 O-ring Material Price 5 High 437 -15 3 4 1 2 1 2 2 1 1 4
General purpose brown color FKM to diferentiate from standard black FKM, improved oxidation resistance
V1007 FKM Viton® (A) Fluorocarbon Black 90 O-ring Material Price 5 High 437 -15 3 4 2 2 1 2 2 1 1 4
General purpose higher durometer FKM for higher pressure applications
V1038 FKM Viton® (GLT) Fluorocarbon Black 75 O-ring Material Price 5 Low 437 -40 2 3 1 2 1 2 2 2 1 4
Lower temperature resistance and improved chemical resistance over standard A type FKM
V1118 FKM Viton® (F) Fluorocarbon White 70 O-ring Material Price 5 Low 437 -15 3 4 2 2 1 2 2 1 1 4
Medical Grade USP Class VI compliant, commercial manufactured terpolymer FKM, FDA compliant per 21 CFR 177.2600, 3A Dairy USDA compliant
V1020 FKM Viton® (ETP) Fluorocarbon Black 75 O-ring Material Price 6 Med 437 -6 2 3 1 1 1 2 2 1 1 3
Best FKM family chemical resistance , known as Viton® ETP, Viton® Extreme and Super Viton®, improved base, amines, ketones, MTBE, MEK, MIBK resistance
V1090 FKM Viton® (GLT) Fluorocarbon Black 90 O-ring Material Price 6 Low 437 -40 2 4 2 2 1 2 2 1 1 4
High performance FKM with higher and lower temperature resistance and harder durometer explosive decompression resistance, Norsok and Nace tested for Oilfiled.
V1086 FKM Viton® (LTFE) Fluorocarbon Black 75 O-ring Material Price 5 Low 437 -54 2 4 1 2 1 2 2 1 1 4
Lowest temperature resistant FKM with improved resistance to fuels over standard type A
L1000 Aflas® (TFE/P) Black 80 O-ring Material Price 5 Med 450 15 1 2 2 2 1 2 2 2 2 2
General purpose Aflas ®, steam resistant, sour gas resistant, acid resistance, for chemical and oil industries  (higher performance Alfas® versions avaialble for oil drilling environmnets)
L1009 Aflas® (TFE/P) Black 90 O-ring Material Price 6 Low 475 32 1 2 2 2 1 2 2 2 2 2
Higher performance and higher durometer Aflas®, improved explosive decompression resistance, steam resistance, sour gas resistance, acid resistance, tested to Norsok M-710 for oilfield
F1001 Fluorosilicone (FVMQ, FSIL) Blue 70 O-ring Material Price 5 High 350 -80 4 4 2 3 1 4 3 3 1 4
Aerospace Military Specification Mil-Spec AMS-R-25988 M25988/1-### per Mil-R-25988 CL-1 GR-70, jet fuel resistance
S1000 Silicone (VMQ, SIL) Orange 70 O-ring Material Price 53 Very High 400 -75 3 4 2 4 1 4 3 4 4 4
General purpose and FDA compliant Silicone per 21 CFR 177.2600   (available in nearly any color and durometer)
S1004 Silicone (VMQ, SIL) Orange 40 O-ring Material Price 4 Low 400 -75 3 4 3 4 1 4 3 4 4 4
General purpose softer than standard Silicone to seal rough or warped glands and or low closure force applications
S1015 Silicone (VMQ, SIL) Orange 70 O-ring Material Price 4 Low 500 -65 3 4 2 4 1 4 3 4 4 4
Higher temperature resistant Silicone
S1043 Silicone (VMQ, SIL) Orange 50 O-ring Material Price 4 Low 400 -103 3 4 2 4 1 4 3 4 4 4
Lower temperature resistant Silicone
S1020 Silicone (VMQ, SIL) Clear 70 O-ring Material Price 4 Low 400 -65 3 4 2 4 1 4 3 4 4 4
Clear-Translucent and FDA compliant Silicone per 21 CFR 177.2600
S1146 Silicone (VMQ, SIL) White 70 O-ring Material Price 4 Low 480 -75 3 4 2 4 1 4 3 4 4 4
Medical Grade USP Class VI and FDA compliant Silicone, Platinium Cured, Commercial Manufactured
S1083 Silicone (VMQ, SIL) Clear 70 O-ring Material Price 4 Low 400 -65 3 4 2 4 1 4 3 4 4 4
Medical Grade USP Class VI and FDA compliant Silicone, Platinium Cured, Commercial Manufactured
S1037 Silicone (VMQ, SIL) Clear 70 O-ring Material Price 5 Low 400 -65 3 4 2 4 1 4 3 4 4 4
Medical Grade USP Class VI and FDA compliant Silicone, Platinium Cured, Clean Room Manufactured
S1081 Silicone (VMQ, SIL) Orange 65 O-ring Material Price 6 Low 350 -65 4 4 4 4 1 4 3 4 4 4
EMI RFI Shielding Nickel Coated Graphite filled Silicone, Volume Resistivity 0.10 ohm-cm
E1000 EPDM (Peroxide Cure) Black 70 O-ring Material Price 2 Very High 300 -65 1 4 2 2 1 3 2 4 4 1
General purpose peroxide cured EPDM FDA compliant per 21 CFR 177.2600 and NSF61 for drinking water and food contact
E1005 EPDM (Sulfur Cure) Black 70 O-ring Material Price 2 Med 265 -65 2 4 2 2 1 3 2 4 4 3
General purpose sulfur cured EPDM with lowest cost at very high volumes
E1097 EPDM (Peroxide Cure) Black 70 O-ring Material Price 3 Low 300 -65 1 4 2 2 1 3 2 4 4 1
Chloramine Resistant NSF61 for drinking water, food and dairy contact, peroxide cured EPDM FDA compliant per 21 CFR 177.2600, 3A USDA compliant
E1074 EPDM (Peroxide Cure) White 70 O-ring Material Price 4 Low 300 -65 1 4 2 2 1 3 2 4 4 1
Medical Grade USP Class VI compliant EPDM, commercial manufactured, peroxide cured, FDA compliant per 21 CFR 177.2600, 3A Dairy USDA compliant
N1000 Neoprene® (CR) Black 70 O-ring Material Price 2 Med 250 -40 4 4 2 4 2 2 2 2 4 3
General purpose Neoprene®
P1000 Polyurethane (PU, AU) Translucent 70 O-ring Material Price 5 Med 250 -65 4 4 2 3 1 1 1 3 3 4
High performance 70 durometer Polyurethane
P1001 Polyurethane (PU, AU) Translucent 90 O-ring Material Price 5 Med 250 -65 4 4 2 3 1 1 1 3 3 4
High performance 90 durometer Polyurethane
P1004 Polyurethane (PU, AU) Translucent 90 O-ring Material Price 3 Med 180 -30 4 4 3 4 1 2 1 4 4 4
General purpose 90 durometer Polyurethane
P1006 Polyurethane (PU, AU) Translucent 70 O-ring Material Price 3 Med 180 -30 4 4 3 4 1 2 1 4 4 4
General purpose 70 durometer Polyurethane
T1000 PTFE Solid (Virgin) Teflon® White N/A O-ring Material Price 6 Med 450 -250 3 4 4 1 1 3 1 1 1 1
General purpose PTFE extreme chemical resistant ridged plastic only seals in limited applications  (consider FFKM for critical leak resistant applications)
T1002 FEP (Teflon®) Encapsulated Silicone Orange Core N/A O-ring Material Price 5 Med 400 -80 3 4 3 1 1 3 2 3 1 1
General purpose extreme chemical resistant FEP (Teflon®) cover with encapsulated Silicone Solid core, can have leaking issues in some applications (consider FFKM for critical leak resistant applications)
T1021 PFA (Teflon®) Encapsulated Stainless Steel Spring Silver Core N/A O-ring Material Price 6 Low 500 -400 3 4 2 1 1 3 2 1 1 1
High performance extreme chemical resistant FEP (Teflon®) cover with encapsulated Steel Spring core (cosider Spring Energized PTFE Seals for critical applications)

Sorry, no results found.

Reset Filters


Don't see what you need? Please contact an application engineer for assistance in selecting the compound that provides the best combination of performance and price for your specific application.

This guide is intended for general reference use only.
Selecting an O-Ring material for a specific application depends on many important criteria including:
Service Conditions (media to be sealed, temperature range, pressure/vacuum range, dynamic motion)
Design Attributes (component geometry, desired service life, installation considerations, tolerances)


O-Ring Kits and Accessories

o-ring kit o-ring kit o-ring kit O-ring Cord Stock
O-Ring-Kits Sizing-Cone and Tape O-Lube® O-Ring Cord

o-ring splicing kit o-ring installation tools Marco Rubber O-ring Identifer Tool
O-Ring Splicing-Kits Extraction-Tools O-Ring Material Identifier


Marco Rubber Stocks High Quality Mil-Spec and Commercial Seals from:

Simrit Freudenberg FST NOK Logo

Parker Seal

Seals and
Accessories

Parco Logo
High Perfomance Seals



Marco Rubber also Stocks:

O-ring Encapsulated Seal Groove Cross Section X-ring Cross Section square ring seals

Back-Up Rings

X-Rings and Quad-Ring® Seals

Square Rings



View the Seals Page for alternative sealing needs.

New Customer Hotline: 800-775-6525

Existing Customer Specialist: 800-775-6525 or repeat customers

Marco Rubber & Plastics
PO Box 1150
Seabrook, NH 03874

Contact
Home