3MM CS X 148MM ID BLACK BUNA 70D

Buna-N O-Ring, 3 x 148 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:
H3X148
Please login to see price and add to cart

Product Specification

-
Ordered as H3X148, this is a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 148 mm (5.827 in), a cross section of 3 mm (0.118 in), and an outside diameter of 154 mm (6.06 in). The o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

The material holds up against many alcohols, greases and lubricants, and petroleum-based oils. Buna-N (Nitrile) offers low compression set under sustained load and an economical choice for high-volume maintenance programs. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). It is not the right choice where automotive brake fluid or polar solvents are present.

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

Reference part number H3X148 when ordering; the item is sold individually. Unit weight is approximately 4.14 g. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.
Item
H3X148
Description
3MM CS X 148MM ID BLACK BUNA 70D
Actual Outside Diameter
154 mm (6.06 inch)
Actual Cross Section
3 mm (0.118 inch)
Actual Inside Diameter
148 mm (5.827 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity