5.7MM CS X 99.6MM ID BLACK BUNA 70D

Buna-N O-Ring, 5.7 x 99.6 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:
H5.7X99.6
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Product Specification

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H5.7X99.6 is a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 99.6 mm (3.921 in), a cross section of 5.7 mm (0.224 in), and an outside diameter of 111 mm (4.37 in). In service, this o-ring remains the most cost-effective sealing element available for pressurized assemblies. Source specification: Metric O-RING, JIS P100.

Buna-N (Nitrile) is specified here for economical choice for high-volume maintenance programs, strong abrasion and tear resistance. This material stands up to greases and lubricants, petroleum-based oils, and hydraulic fluids. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where automotive brake fluid or ketones are present.

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

Reference part number H5.7X99.6 when ordering; the item is sold individually. Unit weight is approximately 10.231 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
H5.7X99.6
Description
5.7MM CS X 99.6MM ID BLACK BUNA 70D
Actual Outside Diameter
111 mm (4.37 inch)
Actual Cross Section
5.7 mm (0.224 inch)
Actual Inside Diameter
99.6 mm (3.921 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity