4MM CS X 124MM ID BLACK BUNA 70D

Buna-N O-Ring, 4 x 124 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:
H4X124
Please login to see price and add to cart

Product Specification

-
The H4X124 is a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 124 mm (4.882 in), a cross section of 4 mm (0.157 in), and an outside diameter of 132 mm (5.2 in). This o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

Buna-N (Nitrile) is specified here for reliable performance in both static and dynamic service, strong abrasion and tear resistance. The material holds up against hydraulic fluids, water, and petroleum-based oils. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Exposure to automotive brake fluid or ketones will shorten service life.

Typical settings include fluid power, automotive, and agricultural equipment.

This item is sold individually under part number H4X124. Unit weight is approximately 6.17 g. Application requirements vary, so validate compatibility with your process conditions prior to installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.
Item
H4X124
Description
4MM CS X 124MM ID BLACK BUNA 70D
Actual Outside Diameter
132 mm (5.2 inch)
Actual Cross Section
4 mm (0.157 inch)
Actual Inside Diameter
124 mm (4.882 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity