You have no items in your shopping cart.

-026 BLACK BUNA 50D O-RING

Buna-N O-Ring, 1.239 in ID x 0.07 CS, 50A, Black, -40 to 250°F

Status
Out of Stock
Est. Ship Date
20 Oct 2026
Material
Buna-N (Nitrile / NBR)
Dash Size
26
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
1/16 inch
Nominal Inside Diameter
1 1/4 inch
Nominal Outside Diameter
1 3/8 inch
Unit of Measure
EA
SKU:
H50026

Product Specification

-
APG stocks the H50026, an AS568-026 black Buna-N (Nitrile) 50 Shore A O-Ring supplied with an inside diameter of 1.239 in (31.47 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 1.379 in (35.03 mm). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

As a material, Buna-N (Nitrile) is valued for strong abrasion and tear resistance, low compression set under sustained load. The material holds up against many alcohols, propane and butane, and water. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in automotive brake fluid or polar solvents.

Maintenance and OEM teams specify it across general industrial maintenance, agricultural equipment, and construction equipment.

Stocked as H50026 and sold individually. Nominal inside diameter is listed as 1 1/4 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
Item
H50026
Description
-026 BLACK BUNA 50D O-RING
Actual Cross Section
0.07 inch (1.78 mm)
Actual Inside Diameter
1.239 inch (31.47 mm)
Actual Outside Diameter
1.379 inch (35.03 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
No
NSF Certified
No
Product Code
6005
Product Category
O-Rings - Bulk - Commodity