3.5MM CS X 27.7MM ID BLACK BUNA 90D

Buna-N O-Ring, 3.5 x 27.7 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:
H90M3.5X27.7
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Product Specification

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APG stocks the H90M3.5X27.7, a black Buna-N (Nitrile) 90 Shore A O-Ring supplied with an inside diameter of 27.7 mm (1.091 in), a cross section of 3.5 mm (0.138 in), and an outside diameter of 34.7 mm (1.37 in). An o-ring delivers dependable bidirectional sealing in a compact groove envelope. Supplementary detail from the product record: Metric O-RING, JIS P28.

As a material, Buna-N (Nitrile) is widely chosen for strong abrasion and tear resistance, reliable performance in both static and dynamic service. The compound resists many alcohols, greases and lubricants, and propane and butane. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Applications involving automotive brake fluid or ozone and direct sunlight call for a different compound.

You will find this material specified across fluid power, construction equipment, and hydraulic and pneumatic systems.

H90M3.5X27.7 ships individually. Unit weight is approximately 1.297 g. Check the compound against your process media, pressure and temperature before committing to a design.
Item
H90M3.5X27.7
Description
3.5MM CS X 27.7MM ID BLACK BUNA 90D
Actual Outside Diameter
34.7 mm (1.37 inch)
Actual Cross Section
3.5 mm (0.138 inch)
Actual Inside Diameter
27.7 mm (1.091 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity