4MM CS X 102MM ID BLACK BUNA 70D

Buna-N O-Ring, 4 x 102 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:
H4X102
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Product Specification

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Part number H4X102 is a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 102 mm (4.016 in), a cross section of 4 mm (0.157 in), and an outside diameter of 110 mm (4.33 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 valued for an economical choice for high-volume maintenance programs, reliable performance in both static and dynamic service. The compound resists greases and lubricants, petroleum-based oils, and many alcohols. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in automotive brake fluid or polar solvents.

Typical settings include automotive, general industrial maintenance, and hydraulic and pneumatic systems.

Stocked as H4X102 and sold individually. Unit weight is approximately 5.1107 g. Check the compound against your process media, pressure and temperature before committing to a design. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.
Item
H4X102
Description
4MM CS X 102MM ID BLACK BUNA 70D
Actual Outside Diameter
110 mm (4.33 inch)
Actual Cross Section
4 mm (0.157 inch)
Actual Inside Diameter
102 mm (4.016 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity