1.5MM CS X 51MM ID BLACK BUNA 70D

Buna-N O-Ring, 1.5 x 51 mm, 70A, Black, -40 to 250°F

Status
Available
Est. Ship Date
31 Oct 2026
Material
Buna-N (Nitrile / NBR)
Durometer
70 Shore A
Cross Section Type
Round
Color
Black
Minimum Temperature
-40°F (-40°C)
Maximum Temperature
250°F (121°C)
Unit of Measure
EA
SKU:
H1.5X51
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Product Specification

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Ordered as H1.5X51, this is a black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 51 mm (2.008 in), a cross section of 1.5 mm (0.059 in), and an outside diameter of 54 mm (2.13 in). The o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

Buna-N (Nitrile) delivers low compression set under sustained load, reliable performance in both static and dynamic service. The compound resists water, many alcohols, and hydraulic fluids. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). It should not be specified for service in automotive brake fluid or ketones.

Common environments for this compound include automotive, agricultural equipment, and hydraulic and pneumatic systems.

This item is sold individually under part number H1.5X51. Unit weight is approximately 0.3534 g. 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
H1.5X51
Description
1.5MM CS X 51MM ID BLACK BUNA 70D
Actual Outside Diameter
54 mm (2.13 inch)
Actual Cross Section
1.5 mm (0.059 inch)
Actual Inside Diameter
51 mm (2.008 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity