-386 BLACK BUNA 90D O-RING

Buna-N O-Ring, 16.955 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
386
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
17 inch
Nominal Outside Diameter
17 3/8 inch
Unit of Measure
EA
SKU:
H90386
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Product Specification

-
Part number H90386 is an AS568-386 black Buna-N (Nitrile) 90 Shore A O-Ring measuring an inside diameter of 16.955 in (430.66 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 17.375 in (441.33 mm). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

This material stands up to hydraulic fluids, petroleum-based oils, and propane and butane. Buna-N (Nitrile) is widely chosen for reliable performance in both static and dynamic service, an economical choice for high-volume maintenance programs. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Applications involving ketones or strong acids call for a different compound.

Typical settings include fluid power, agricultural equipment, and automotive.

This item is sold individually under part number H90386. Unit weight is approximately 41.3011 g. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.
Item
H90386
Description
-386 BLACK BUNA 90D O-RING
Actual Cross Section
0.21 inch (5.33 mm)
Actual Inside Diameter
16.955 inch (430.66 mm)
Actual Outside Diameter
17.375 inch (441.33 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
No
NSF Certified
No
Product Code
6005
Product Category
O-Rings - Bulk - Commodity