4MM CS X 75MM ID BLACK BUNA 70D

Buna-N O-Ring, 4 x 75 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:
H4X75
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Product Specification

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Part number H4X75 is a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 75 mm (2.953 in), a cross section of 4 mm (0.157 in), and an outside diameter of 83 mm (3.27 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 economical choice for high-volume maintenance programs, strong abrasion and tear resistance. The material holds up against many alcohols, petroleum-based oils, and hydraulic fluids. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. It is not the right choice where ozone and direct sunlight or polar solvents are present.

Typical settings include agricultural equipment, automotive, and hydraulic and pneumatic systems.

This item is sold individually under part number H4X75. Unit weight is approximately 3.8752 g. Review your operating media and conditions against this specification before installation.
Item
H4X75
Description
4MM CS X 75MM ID BLACK BUNA 70D
Actual Outside Diameter
83 mm (3.27 inch)
Actual Cross Section
4 mm (0.157 inch)
Actual Inside Diameter
75 mm (2.953 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity