-324 BLACK BUNA 90D O-RING

Buna-N O-Ring, 1.35 in ID x 0.21 CS, 90A, Black, -40 to 250°F

Status
Available
Est. Ship Date
31 Oct 2026
Material
Buna-N (Nitrile / NBR)
Dash Size
324
Durometer
90 Shore A
Cross Section Type
Round
Color
Black
Minimum Temperature
-40°F (-40°C)
Maximum Temperature
250°F (121°C)
Nominal Cross Section
3/16 inch
Nominal Inside Diameter
1 3/8 inch
Nominal Outside Diameter
1 3/4 inch
Unit of Measure
EA
SKU:
H90324
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Product Specification

-
Part number H90324 is an AS568-324 black Buna-N (Nitrile) 90 Shore A O-Ring supplied with an inside diameter of 1.35 in (34.29 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 1.77 in (44.96 mm). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

Expect good resistance to hydraulic fluids, many alcohols, and propane and butane. That behavior comes from the compound itself: Buna-N (Nitrile) is known for the most widely specified general-purpose sealing elastomer and low compression set under sustained load. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). It is not the right choice where automotive brake fluid or polar solvents are present.

You will find this material specified across general industrial maintenance, fluid power, and agricultural equipment.

This item is sold individually under part number H90324. Unit weight is approximately 3.667 g. Review your operating media and conditions against this specification before installation.
Item
H90324
Description
-324 BLACK BUNA 90D O-RING
Actual Cross Section
0.21 inch (5.33 mm)
Actual Inside Diameter
1.35 inch (34.29 mm)
Actual Outside Diameter
1.77 inch (44.96 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
No
NSF Certified
No
Product Code
6005
Product Category
O-Rings - Bulk - Commodity