-402 BLACK BUNA 70D O-RING

Buna-N O-Ring, 1.6 in ID x 0.275 CS, 70A, Black, -40 to 250°F

Status
Available
Est. Ship Date
31 Oct 2026
Material
Buna-N (Nitrile / NBR)
Dash Size
402
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
1 5/8 inch
Nominal Outside Diameter
2 1/8 inch
Unit of Measure
EA
SKU:
H70402
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Product Specification

-
Ordered as H70402, this is an AS568-402 black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 1.6 in (40.64 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 2.15 in (54.61 mm). The o-ring delivers dependable bidirectional sealing in a compact groove envelope.

As a material, Buna-N (Nitrile) is valued for the most widely specified general-purpose sealing elastomer and low compression set under sustained load. The material holds up against many alcohols, water, and greases and lubricants. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). It is not the right choice where polar solvents or ketones are present.

You will find this material specified across automotive, fluid power, and general industrial maintenance.

Reference part number H70402 when ordering; the item is sold individually. Unit weight is approximately 7.026 g and nominal inside diameter is listed as 1 5/8 inch. Review your operating media and conditions against this specification before installation. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
Item
H70402
Description
-402 BLACK BUNA 70D O-RING
Actual Cross Section
0.275 inch (6.99 mm)
Actual Inside Diameter
1.6 inch (40.64 mm)
Actual Outside Diameter
2.15 inch (54.61 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
No
NSF Certified
No
Product Code
6005
Product Category
O-Rings - Bulk - Commodity