5.7MM CS X 131.6MM ID BLACK BUNA 70D

Buna-N O-Ring, 5.7 x 131.6 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:
H5.7X131.6
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Product Specification

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Part number H5.7X131.6 is a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 131.6 mm (5.181 in), a cross section of 5.7 mm (0.224 in), and an outside diameter of 143 mm (5.63 in). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load. The catalog record notes: Metric O-RING, JIS P132.

This material stands up to water, many alcohols, and petroleum-based oils. Buna-N (Nitrile) delivers strong abrasion and tear resistance, the most widely specified general-purpose sealing elastomer. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. Applications involving strong acids or polar solvents call for a different compound.

Common environments for this compound include hydraulic and pneumatic systems, fluid power, and agricultural equipment.

Order part number H5.7X131.6, sold individually. Unit weight is approximately 13.304 g. Review your operating media and conditions against this specification before installation.
Item
H5.7X131.6
Description
5.7MM CS X 131.6MM ID BLACK BUNA 70D
Actual Outside Diameter
143 mm (5.63 inch)
Actual Cross Section
5.7 mm (0.224 inch)
Actual Inside Diameter
131.6 mm (5.181 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity