-918 BLACK BUNA 70D O-RING

Buna-N O-Ring, 1.355 in ID x 0.116 CS, 70A, Black, -40 to 250°F

Status
Available
Est. Ship Date
31 Oct 2026
Material
Buna-N (Nitrile / NBR)
Dash Size
918
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
3/32 inch
Nominal Inside Diameter
1 1/8 inch
Nominal Outside Diameter
1 5/16 inch
Unit of Measure
EA
SKU:
H70918
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Product Specification

-
Ordered as H70918, this is an AS568-918 black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 1.355 in (34.42 mm), a cross section of 0.116 in (2.95 mm), and an outside diameter of 1.587 in (40.31 mm). The o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

The material holds up against hydraulic fluids, propane and butane, and water. Buna-N (Nitrile) is valued for low compression set under sustained load and the most widely specified general-purpose sealing elastomer. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C).

Typical settings include agricultural equipment, fluid power, and general industrial maintenance.

H70918 ships individually. Unit weight is approximately 0.974 g and nominal inside diameter is listed as 1 1/8 inch. Check the compound against your process media, pressure and temperature before committing to a design. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.
Item
H70918
Description
-918 BLACK BUNA 70D O-RING
Actual Cross Section
0.116 inch (2.95 mm)
Actual Inside Diameter
1.355 inch (34.42 mm)
Actual Outside Diameter
1.587 inch (40.31 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
No
NSF Certified
No
Product Code
6005
Product Category
O-Rings - Bulk - Commodity