3MM CS X 56MM ID BLACK BUNA 90D

Buna-N O-Ring, 3 x 56 mm, 90A, Black, -40 to 250°F

Status
Out of Stock
Est. Ship Date
29 Oct 2026
Material
Buna-N (Nitrile / NBR)
Durometer
90 Shore A
Cross Section Type
Round
Color
Black
Minimum Temperature
-40°F (-40°C)
Maximum Temperature
250°F (121°C)
Unit of Measure
EA
SKU:
H90M3X56

Product Specification

-
H90M3X56 is a black Buna-N (Nitrile) 90 Shore A O-Ring built to an inside diameter of 56 mm (2.205 in), a cross section of 3 mm (0.118 in), and an outside diameter of 62 mm (2.44 in). In service, this o-ring compresses into its gland to block fluid or gas migration across a joint.

This material stands up to propane and butane, greases and lubricants, and many alcohols. Buna-N (Nitrile) is widely chosen for an economical choice for high-volume maintenance programs, reliable performance in both static and dynamic service. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C).

Common environments for this compound include fluid power, agricultural equipment, and hydraulic and pneumatic systems.

Reference part number H90M3X56 when ordering; the item is sold individually. Unit weight is approximately 1.718 g. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.
Item
H90M3X56
Description
3MM CS X 56MM ID BLACK BUNA 90D
Actual Outside Diameter
62 mm (2.44 inch)
Actual Cross Section
3 mm (0.118 inch)
Actual Inside Diameter
56 mm (2.205 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity