-263 BLACK BUNA 50D O-RING

Buna-N O-Ring, 7.234 in ID x 0.139 CS, 50A, Black, -40 to 250°F

Status
Out of Stock
Est. Ship Date
29 Oct 2026
Material
Buna-N (Nitrile / NBR)
Dash Size
263
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
1/8 inch
Nominal Inside Diameter
7 1/4 inch
Nominal Outside Diameter
7 1/2 inch
Unit of Measure
EA
SKU:
H50263

Product Specification

-
Ordered as H50263, this is an AS568-263 black Buna-N (Nitrile) 50 Shore A O-Ring supplied with an inside diameter of 7.234 in (183.74 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 7.512 in (190.8 mm). The o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

Buna-N (Nitrile) offers strong abrasion and tear resistance, reliable performance in both static and dynamic service. Expect good resistance to greases and lubricants, propane and butane, and many alcohols. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C).

Maintenance and OEM teams specify it across agricultural equipment, construction equipment, and fluid power.

This item is sold individually under part number H50263. Check the compound against your process media, pressure and temperature before committing to a design.
Item
H50263
Description
-263 BLACK BUNA 50D O-RING
Actual Cross Section
0.139 inch (3.53 mm)
Actual Inside Diameter
7.234 inch (183.74 mm)
Actual Outside Diameter
7.512 inch (190.8 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
No
NSF Certified
No
Product Code
6005
Product Category
O-Rings - Bulk - Commodity