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-393 BLACK BUNA 70D O-RING

Buna-N O-Ring, 23.94 in ID x 0.21 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
393
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
24 inch
Nominal Outside Diameter
24 3/8 inch
Unit of Measure
EA
SKU:
H70MD393

Product Specification

-
Ordered as H70MD393, this is an AS568-393 black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 23.94 in (608.08 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 24.36 in (618.74 mm). The o-ring delivers dependable bidirectional sealing in a compact groove envelope.

Buna-N (Nitrile) delivers low compression set under sustained load, reliable performance in both static and dynamic service. Expect good resistance to water, propane and butane, and petroleum-based oils. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where ketones or automotive brake fluid are present.

This item is metal detectable for HACCP and foreign-body control programs. It sees regular use in general industrial maintenance, fluid power, and hydraulic and pneumatic systems.

Order part number H70MD393, sold individually. Nominal inside diameter is listed as 24 inch. 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
H70MD393
Description
-393 BLACK BUNA 70D O-RING
Actual Cross Section
0.21 inch (5.33 mm)
Actual Inside Diameter
23.94 inch (608.08 mm)
Actual Outside Diameter
24.36 inch (618.74 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
Yes
NSF Certified
No
Product Code
6012
Product Category
O-Rings - FDA / Metal Detectable