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-174 BLACK BUNA 50D O-RING

Buna-N O-Ring, 8.737 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
174
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
8 3/4 inch
Nominal Outside Diameter
8 15/16 inch
Unit of Measure
EA
SKU:
H50174

Product Specification

-
Ordered as H50174, this is an AS568-174 black Buna-N (Nitrile) 50 Shore A O-Ring supplied with an inside diameter of 8.737 in (221.92 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 8.943 in (227.15 mm). The o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

As a material, Buna-N (Nitrile) offers low compression set under sustained load and an economical choice for high-volume maintenance programs. This material stands up to water, many alcohols, and greases and lubricants. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where ozone and direct sunlight or automotive brake fluid are present.

It sees regular use in construction equipment, automotive, and general industrial maintenance.

This item is sold individually under part number H50174. Nominal inside diameter is listed as 8 3/4 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.
Item
H50174
Description
-174 BLACK BUNA 50D O-RING
Actual Cross Section
0.103 inch (2.62 mm)
Actual Inside Diameter
8.737 inch (221.92 mm)
Actual Outside Diameter
8.943 inch (227.15 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
No
NSF Certified
No
Product Code
6005
Product Category
O-Rings - Bulk - Commodity