8.4MM CS X 359.5MM ID BLACK BUNA 90D

Buna-N O-Ring, 8.4 x 359.5 mm, 90A, Black, -40 to 250°F

Status
Out of Stock
Est. Ship Date
29 Oct 2026
Material
Buna-N (Nitrile / NBR)
Durometer
90 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:
H90M8.4X359.5

Product Specification

-
This o-ring is supplied in black Buna-N (Nitrile) 90 Shore A supplied with an inside diameter of 359.5 mm (14.154 in), a cross section of 8.4 mm (0.331 in), and an outside diameter of 376.3 mm (14.81 in), catalogued under part number H90M8.4X359.5. It compresses into its gland to block fluid or gas migration across a joint. Source specification: Metric O-RING, JIS P360.

As a material, Buna-N (Nitrile) delivers the most widely specified general-purpose sealing elastomer, strong abrasion and tear resistance. The material holds up against hydraulic fluids, many alcohols, and greases and lubricants. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where ozone and direct sunlight or polar solvents are present.

You will find this material specified across fluid power, agricultural equipment, and construction equipment.

Reference part number H90M8.4X359.5 when ordering; the item is sold individually. 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
H90M8.4X359.5
Description
8.4MM CS X 359.5MM ID BLACK BUNA 90D
Actual Outside Diameter
376.3 mm (14.81 inch)
Actual Cross Section
8.4 mm (0.331 inch)
Actual Inside Diameter
359.5 mm (14.154 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity