3MM CS X 135MM ID BLACK BUNA 70D

Buna-N O-Ring, 3 x 135 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:
H3X135
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Product Specification

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Part number H3X135 is a black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 135 mm (5.315 in), a cross section of 3 mm (0.118 in), and an outside diameter of 141 mm (5.55 in). An o-ring delivers dependable bidirectional sealing in a compact groove envelope.

Buna-N (Nitrile) is specified here for strong abrasion and tear resistance, low compression set under sustained load. The compound resists petroleum-based oils, hydraulic fluids, and greases and lubricants. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in strong acids or ozone and direct sunlight.

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

Stocked as H3X135 and sold individually. Unit weight is approximately 3.89 g. Review your operating media and conditions against this specification before installation.
Item
H3X135
Description
3MM CS X 135MM ID BLACK BUNA 70D
Actual Outside Diameter
141 mm (5.55 inch)
Actual Cross Section
3 mm (0.118 inch)
Actual Inside Diameter
135 mm (5.315 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity