4MM CS X 100MM ID BLACK BUNA 70D

Buna-N O-Ring, 4 x 100 mm, 70A, Black, -40 to 250°F

Status
Available
Est. Ship Date
3 Nov 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:
H4X100
Please login to see price and add to cart

Product Specification

-
The H4X100 is a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 100 mm (3.937 in), a cross section of 4 mm (0.157 in), and an outside diameter of 108 mm (4.25 in). This o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

It resists hydraulic fluids, many alcohols, and water. That behavior comes from the compound itself: Buna-N (Nitrile) is specified for the most widely specified general-purpose sealing elastomer, strong abrasion and tear resistance. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C).

Common environments for this compound include general industrial maintenance, construction equipment, and automotive.

Reference part number H4X100 when ordering; the item is sold individually. Unit weight is approximately 5.0165 g. As always, verify media compatibility and operating conditions against the requirements of your specific application. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.
Item
H4X100
Description
4MM CS X 100MM ID BLACK BUNA 70D
Actual Outside Diameter
108 mm (4.25 inch)
Actual Cross Section
4 mm (0.157 inch)
Actual Inside Diameter
100 mm (3.937 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity