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-050 BLACK BUNA 70D O-RING

Buna-N O-Ring, 5.239 in ID x 0.07 CS, 70A, Black, Metal Det., -40 to 250°F

Status
Out of Stock
Est. Ship Date
21 Oct 2026
Material
Buna-N (Nitrile / NBR)
Dash Size
50
Durometer
70 Shore A
Cross Section Type
Round
Color
Black
Minimum Temperature
-40°F (-40°C)
Maximum Temperature
250°F (121°C)
Nominal Cross Section
1/16 inch
Nominal Inside Diameter
5 1/4 inch
Nominal Outside Diameter
5 3/8 inch
Unit of Measure
EA
SKU:
H70MD050

Product Specification

-
Part number H70MD050 is an AS568-050 black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 5.239 in (133.07 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 5.379 in (136.63 mm). An o-ring remains the most cost-effective sealing element available for pressurized assemblies.

Expect good resistance to greases and lubricants, hydraulic fluids, and water. Buna-N (Nitrile) delivers low compression set under sustained load and an economical choice for high-volume maintenance programs. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with ozone and direct sunlight or polar solvents.

This o-ring is metal detectable for HACCP and foreign-body control programs. Common environments for this compound include construction equipment, fluid power, and agricultural equipment.

Stocked as H70MD050 and sold individually. Nominal inside diameter is listed as 5 1/4 inch. Review your operating media and conditions against this specification before installation.
Item
H70MD050
Description
-050 BLACK BUNA 70D O-RING
Actual Cross Section
0.07 inch (1.78 mm)
Actual Inside Diameter
5.239 inch (133.07 mm)
Actual Outside Diameter
5.379 inch (136.63 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
Yes
NSF Certified
No
Product Code
6012
Product Category
O-Rings - FDA / Metal Detectable