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-177 BLACK BUNA 50D O-RING

Buna-N O-Ring, 9.487 in ID x 0.103 CS, 50A, Black, -40 to 250°F

Status
Out of Stock
Est. Ship Date
20 Oct 2026
Material
Buna-N (Nitrile / NBR)
Dash Size
177
Durometer
50 Shore A
Cross Section Type
Round
Color
Black
Minimum Temperature
-40°F (-40°C)
Maximum Temperature
250°F (121°C)
Nominal Cross Section
3/32 inch
Nominal Inside Diameter
9 1/2 inch
Nominal Outside Diameter
9 11/16 inch
Unit of Measure
EA
SKU:
H50177

Product Specification

-
The H50177 is an AS568-177 black Buna-N (Nitrile) 50 Shore A O-Ring built to an inside diameter of 9.487 in (240.97 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 9.693 in (246.2 mm). This o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

As a material, Buna-N (Nitrile) is specified for low compression set under sustained load and an economical choice for high-volume maintenance programs. This material stands up to petroleum-based oils, greases and lubricants, and propane and butane. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where polar solvents or strong acids are present.

Common environments for this compound include fluid power, hydraulic and pneumatic systems, and automotive.

This item is sold individually under part number H50177. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.
Item
H50177
Description
-177 BLACK BUNA 50D O-RING
Actual Cross Section
0.103 inch (2.62 mm)
Actual Inside Diameter
9.487 inch (240.97 mm)
Actual Outside Diameter
9.693 inch (246.2 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
No
NSF Certified
No
Product Code
6005
Product Category
O-Rings - Bulk - Commodity