4MM CS X 265MM ID BLACK BUNA 70D

Buna-N O-Ring, 4 x 265 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:
H4X265
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Product Specification

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APG stocks the H4X265, a black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 265 mm (10.433 in), a cross section of 4 mm (0.157 in), and an outside diameter of 273 mm (10.75 in). An o-ring 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, reliable performance in both static and dynamic service. The compound resists propane and butane, water, and greases and lubricants. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in ozone and direct sunlight or ketones.

Maintenance and OEM teams specify it across general industrial maintenance, agricultural equipment, and fluid power.

This item is sold individually under part number H4X265. Unit weight is approximately 12.932 g. Check the compound against your process media, pressure and temperature before committing to a design.
Item
H4X265
Description
4MM CS X 265MM ID BLACK BUNA 70D
Actual Outside Diameter
273 mm (10.75 inch)
Actual Cross Section
4 mm (0.157 inch)
Actual Inside Diameter
265 mm (10.433 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity