-433 BLACK BUNA 70D O-RING

Buna-N O-Ring, 5.475 in ID x 0.275 CS, 70A, Black, -40 to 250°F

Status
Available
Est. Ship Date
1 Nov 2026
Material
Buna-N (Nitrile / NBR)
Dash Size
433
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
5 1/2 inch
Nominal Outside Diameter
6 inch
Unit of Measure
EA
SKU:
H70433
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Product Specification

-
Part number H70433 is an AS568-433 black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 5.475 in (139.07 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 6.025 in (153.04 mm). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

The material holds up against water, petroleum-based oils, and greases and lubricants. Buna-N (Nitrile) is valued for strong abrasion and tear resistance, reliable performance in both static and dynamic service. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Exposure to polar solvents or strong acids will shorten service life.

Typical settings include automotive, agricultural equipment, and fluid power.

Order part number H70433, sold individually. Unit weight is approximately 21.47 g. Check the compound against your process media, pressure and temperature before committing to a design.
Item
H70433
Description
-433 BLACK BUNA 70D O-RING
Actual Cross Section
0.275 inch (6.99 mm)
Actual Inside Diameter
5.475 inch (139.07 mm)
Actual Outside Diameter
6.025 inch (153.04 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
No
NSF Certified
No
Product Code
6005
Product Category
O-Rings - Bulk - Commodity