-366 BLACK BUNA 90D O-RING

Buna-N O-Ring, 7.225 in ID x 0.21 CS, 90A, Black, -40 to 250°F

Status
Available
Est. Ship Date
31 Oct 2026
Material
Buna-N (Nitrile / NBR)
Dash Size
366
Durometer
90 Shore A
Cross Section Type
Round
Color
Black
Minimum Temperature
-40°F (-40°C)
Maximum Temperature
250°F (121°C)
Nominal Cross Section
3/16 inch
Nominal Inside Diameter
7 1/4 inch
Nominal Outside Diameter
7 5/8 inch
Unit of Measure
EA
SKU:
H90366
Please login to see price and add to cart

Product Specification

-
H90366 is an AS568-366 black Buna-N (Nitrile) 90 Shore A O-Ring measuring an inside diameter of 7.225 in (183.52 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 7.645 in (194.18 mm). In service, this o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

As a material, Buna-N (Nitrile) offers reliable performance in both static and dynamic service, strong abrasion and tear resistance. It resists hydraulic fluids, many alcohols, and greases and lubricants. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C).

Common environments for this compound include general industrial maintenance, hydraulic and pneumatic systems, and fluid power.

Stocked as H90366 and sold individually. Unit weight is approximately 18.354 g and nominal inside diameter is listed as 7 1/4 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
Item
H90366
Description
-366 BLACK BUNA 90D O-RING
Actual Cross Section
0.21 inch (5.33 mm)
Actual Inside Diameter
7.225 inch (183.52 mm)
Actual Outside Diameter
7.645 inch (194.18 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
No
NSF Certified
No
Product Code
6005
Product Category
O-Rings - Bulk - Commodity