3MM CS X 41.5MM ID BLACK BUNA 70D

Buna-N O-Ring, 3 x 41.5 mm, 70A, Black, -40 to 250°F

Status
Available
Est. Ship Date
1 Nov 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:
H3X41.5
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Product Specification

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This o-ring is supplied in black Buna-N (Nitrile) 70 Shore A measuring an inside diameter of 41.5 mm (1.634 in), a cross section of 3 mm (0.118 in), and an outside diameter of 47.5 mm (1.87 in), catalogued under part number H3X41.5. It provides a reliable static or dynamic seal by deforming into its gland under assembly load.

Buna-N (Nitrile) is specified here for low compression set under sustained load, strong abrasion and tear resistance. It resists petroleum-based oils, hydraulic fluids, and many alcohols. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Exposure to ozone and direct sunlight or polar solvents will shorten service life.

Common environments for this compound include automotive, construction equipment, and general industrial maintenance.

This item is sold individually under part number H3X41.5. 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
H3X41.5
Description
3MM CS X 41.5MM ID BLACK BUNA 70D
Actual Outside Diameter
47.5 mm (1.87 inch)
Actual Cross Section
3 mm (0.118 inch)
Actual Inside Diameter
41.5 mm (1.634 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity