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-375 BLACK BUNA 70D O-RING

Buna-N O-Ring, 9.475 in ID x 0.21 CS, 70A, Black, Metal Det., -40 to 250°F

Status
Out of Stock
Est. Ship Date
20 Oct 2026
Material
Buna-N (Nitrile / NBR)
Dash Size
375
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
3/16 inch
Nominal Inside Diameter
9 1/2 inch
Nominal Outside Diameter
9 7/8 inch
Unit of Measure
EA
SKU:
H70MD375

Product Specification

-
This o-ring is supplied in AS568-375 black Buna-N (Nitrile) 70 Shore A with an inside diameter of 9.475 in (240.67 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 9.895 in (251.33 mm), catalogued under part number H70MD375. It creates a positive seal at flange, piston and rod interfaces without added hardware.

As a material, Buna-N (Nitrile) is specified for an economical choice for high-volume maintenance programs and low compression set under sustained load. The material holds up against many alcohols, water, and hydraulic fluids. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with automotive brake fluid or polar solvents.

The compound is metal detectable for HACCP and foreign-body control programs. Common environments for this compound include fluid power, automotive, and hydraulic and pneumatic systems.

H70MD375 ships individually. 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
H70MD375
Description
-375 BLACK BUNA 70D O-RING
Actual Cross Section
0.21 inch (5.33 mm)
Actual Inside Diameter
9.475 inch (240.67 mm)
Actual Outside Diameter
9.895 inch (251.33 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
Yes
NSF Certified
No
Product Code
6012
Product Category
O-Rings - FDA / Metal Detectable