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-453 BLACK BUNA 70D O-RING

Buna-N O-Ring, 11.975 in ID x 0.275 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
453
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
1/4 inch
Nominal Inside Diameter
12 inch
Nominal Outside Diameter
12 1/2 inch
Unit of Measure
EA
SKU:
H70MD453

Product Specification

-
This o-ring is supplied in AS568-453 black Buna-N (Nitrile) 70 Shore A measuring an inside diameter of 11.975 in (304.17 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 12.525 in (318.14 mm), catalogued under part number H70MD453. It seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

As a material, Buna-N (Nitrile) is specified for low compression set under sustained load, reliable performance in both static and dynamic service. Expect good resistance to water, petroleum-based oils, and propane and butane. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. Applications involving ozone and direct sunlight or strong acids call for a different compound.

This item is metal detectable for HACCP and foreign-body control programs. Typical settings include automotive, agricultural equipment, and construction equipment.

Stocked as H70MD453 and sold individually. As always, verify media compatibility and operating conditions against the requirements of your specific application. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
Item
H70MD453
Description
-453 BLACK BUNA 70D O-RING
Actual Cross Section
0.275 inch (6.99 mm)
Actual Inside Diameter
11.975 inch (304.17 mm)
Actual Outside Diameter
12.525 inch (318.14 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
Yes
NSF Certified
No
Product Code
6012
Product Category
O-Rings - FDA / Metal Detectable