Buna-N Rubber Rounds | McMaster-Carr

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Material

Aramid-Reinforced Buna-N

Buna-N/Graphite

Carbon Fiber-Reinforced Buna-N

Shape

Ring with Bolt Holes

Pipe Size

OD

For Flange ANSI Class

Thickness

0.021" to 0.041"

0.026" to 0.036"

0.052" to 0.072"

0.054" to 0.070"

0.115" to 0.135"

ID

Color

Number of Bolt Holes

Backing Type

Maximum Temperature

Less than 500° F

500° F to 999° F

System of Measurement

Maximum Pressure

Less than 1,000 psi

1,000 psi to 1,999 psi

2,000 psi to 2,999 psi

Performance

High Temperature

Minimum Temperature

-199° F to -100° F

-99° F to -1° F

Greater than 0° F

Hardness Rating

RoHS

REACH

DFARS Specialty Metals

Export Control Classification Number (ECCN)

Hardness

Bolt Screw Size

DN Size

Width

Diameter

Environment

How can we improve?

325 Products

Sealing Washers

Sealing Washers

Sealing Washers

Choose from rubber, PTFE, hard fiber, or metal

Other Products

Pipe Gaskets

Form tight seals when connecting flanged pipe fittings

Gasket Material

Gasket Material

Cut custom shapes and sizes to fill gaps between flat surfaces

Made-to-Order Gaskets

Made-to-Order Gaskets

Send your exact specifications to get gaskets that fit precisely between surfaces

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)