5.7MM CS X 209.3MM ID BLACK BUNA 90D

Buna-N O-Ring, 5.7 x 209.3 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:
H90M5.7X209.3
Please login to see price and add to cart

Product Specification

-
APG stocks the H90M5.7X209.3, a black Buna-N (Nitrile) 90 Shore A O-Ring with an inside diameter of 209.3 mm (8.24 in), a cross section of 5.7 mm (0.224 in), and an outside diameter of 220.7 mm (8.69 in). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware. Supplementary detail from the product record: Metric O-RING, JIS G210.

Expect good resistance to many alcohols, greases and lubricants, and propane and butane. Buna-N (Nitrile) is known for strong abrasion and tear resistance, the most widely specified general-purpose sealing elastomer. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. It should not be specified for service in ozone and direct sunlight or ketones.

Typical settings include fluid power, automotive, and general industrial maintenance.

H90M5.7X209.3 ships individually. Unit weight is approximately 23.583 g. Review your operating media and conditions against this specification before installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.
Item
H90M5.7X209.3
Description
5.7MM CS X 209.3MM ID BLACK BUNA 90D
Actual Outside Diameter
220.7 mm (8.69 inch)
Actual Cross Section
5.7 mm (0.224 inch)
Actual Inside Diameter
209.3 mm (8.24 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity