8.4MM CS X 149.5MM ID BLACK BUNA 90D

Buna-N O-Ring, 8.4 x 149.5 mm, 90A, Black, -40 to 250°F

Status
Available
Est. Ship Date
31 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:
H90M8.4X149.5
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Product Specification

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APG stocks the H90M8.4X149.5, a black Buna-N (Nitrile) 90 Shore A O-Ring measuring an inside diameter of 149.5 mm (5.886 in), a cross section of 8.4 mm (0.331 in), and an outside diameter of 166.3 mm (6.55 in). An o-ring compresses into its gland to block fluid or gas migration across a joint. Supplementary detail from the product record: Metric O-RING, JIS P150A.

As a material, Buna-N (Nitrile) is specified for reliable performance in both static and dynamic service, an economical choice for high-volume maintenance programs. The material holds up against propane and butane, water, and hydraulic fluids. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. Exposure to automotive brake fluid or ozone and direct sunlight will shorten service life.

It sees regular use in general industrial maintenance, construction equipment, and agricultural equipment.

Order part number H90M8.4X149.5, sold individually. Unit weight is approximately 37.542 g. Check the compound against your process media, pressure and temperature before committing to a design.
Item
H90M8.4X149.5
Description
8.4MM CS X 149.5MM ID BLACK BUNA 90D
Actual Outside Diameter
166.3 mm (6.55 inch)
Actual Cross Section
8.4 mm (0.331 inch)
Actual Inside Diameter
149.5 mm (5.886 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity