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-322 BLACK BUNA 70D O-RING

Buna-N O-Ring, 1.225 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
322
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
1 1/4 inch
Nominal Outside Diameter
1 5/8 inch
Unit of Measure
EA
SKU:
H70MD322

Product Specification

-
This o-ring is supplied in AS568-322 black Buna-N (Nitrile) 70 Shore A with an inside diameter of 1.225 in (31.12 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 1.645 in (41.78 mm), catalogued under part number H70MD322. It compresses into its gland to block fluid or gas migration across a joint.

As a material, Buna-N (Nitrile) is specified for the most widely specified general-purpose sealing elastomer, reliable performance in both static and dynamic service. It resists propane and butane, many alcohols, and greases and lubricants. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. Exposure to ozone and direct sunlight or automotive brake fluid will shorten service life.

The compound is metal detectable for HACCP and foreign-body control programs. Maintenance and OEM teams specify it across agricultural equipment, automotive, and fluid power.

This item is sold individually under part number H70MD322. Nominal inside diameter is listed as 1 1/4 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.
Item
H70MD322
Description
-322 BLACK BUNA 70D O-RING
Actual Cross Section
0.21 inch (5.33 mm)
Actual Inside Diameter
1.225 inch (31.12 mm)
Actual Outside Diameter
1.645 inch (41.78 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
Yes
NSF Certified
No
Product Code
6012
Product Category
O-Rings - FDA / Metal Detectable