2.5MM CS X 135MM ID BLACK BUNA 70D

Buna-N O-Ring, 2.5 x 135 mm, 70A, Black, -40 to 250°F

Status
Available
Est. Ship Date
31 Oct 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:
H2.5X135
Please login to see price and add to cart

Product Specification

-
This o-ring is supplied in black Buna-N (Nitrile) 70 Shore A built to an inside diameter of 135 mm (5.315 in), a cross section of 2.5 mm (0.098 in), and an outside diameter of 140 mm (5.51 in), catalogued under part number H2.5X135. It provides a reliable static or dynamic seal by deforming into its gland under assembly load.

Buna-N (Nitrile) is specified here for low compression set under sustained load, strong abrasion and tear resistance. This material stands up to greases and lubricants, many alcohols, and water. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where strong acids or automotive brake fluid are present.

It sees regular use in fluid power, agricultural equipment, and automotive.

Stocked as H2.5X135 and sold individually. Unit weight is approximately 2.5896 g. Check the compound against your process media, pressure and temperature before committing to a design. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
Item
H2.5X135
Description
2.5MM CS X 135MM ID BLACK BUNA 70D
Actual Outside Diameter
140 mm (5.51 inch)
Actual Cross Section
2.5 mm (0.098 inch)
Actual Inside Diameter
135 mm (5.315 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity