3.5MM CS X 90MM ID BLACK BUNA 70D

Buna-N O-Ring, 3.5 x 90 mm, 70A, Black, -40 to 250°F

Status
Available
Est. Ship Date
1 Nov 2026
Material
Buna-N (Nitrile / NBR)
Durometer
70 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:
H3.5X90
Please login to see price and add to cart

Product Specification

-
Part number H3.5X90 is a black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 90 mm (3.543 in), a cross section of 3.5 mm (0.138 in), and an outside diameter of 97 mm (3.82 in). An o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

Buna-N (Nitrile) is widely chosen for strong abrasion and tear resistance, an economical choice for high-volume maintenance programs. This material stands up to propane and butane, water, and many alcohols. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C).

Typical settings include hydraulic and pneumatic systems, automotive, and fluid power.

This item is sold individually under part number H3.5X90. Unit weight is approximately 3.4515 g. Application requirements vary, so validate compatibility with your process conditions prior to installation. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.
Item
H3.5X90
Description
3.5MM CS X 90MM ID BLACK BUNA 70D
Actual Outside Diameter
97 mm (3.82 inch)
Actual Cross Section
3.5 mm (0.138 inch)
Actual Inside Diameter
90 mm (3.543 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity