5.7MM CS X 314.3MM ID BLACK BUNA 70D

Buna-N O-Ring, 5.7 x 314.3 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:
H5.7X314.3
Please login to see price and add to cart

Product Specification

-
Part number H5.7X314.3 is a black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 314.3 mm (12.374 in), a cross section of 5.7 mm (0.224 in), and an outside diameter of 325.7 mm (12.82 in). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load. Source specification: Metric O-RING, JIS G315.

Expect good resistance to greases and lubricants, many alcohols, and petroleum-based oils. Buna-N (Nitrile) is valued for strong abrasion and tear resistance, reliable performance in both static and dynamic service. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with polar solvents or strong acids.

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

Stocked as H5.7X314.3 and sold individually. Check the compound against your process media, pressure and temperature before committing to a design.
Item
H5.7X314.3
Description
5.7MM CS X 314.3MM ID BLACK BUNA 70D
Actual Outside Diameter
325.7 mm (12.82 inch)
Actual Cross Section
5.7 mm (0.224 inch)
Actual Inside Diameter
314.3 mm (12.374 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity