You have no items in your shopping cart.

-153 BLACK BUNA 50D O-RING

Buna-N O-Ring, 3.487 in ID x 0.103 CS, 50A, Black, -40 to 250°F

Status
Out of Stock
Est. Ship Date
21 Oct 2026
Material
Buna-N (Nitrile / NBR)
Dash Size
153
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
3 1/2 inch
Nominal Outside Diameter
3 11/16 inch
Unit of Measure
EA
SKU:
H50153

Product Specification

-
APG stocks the H50153, an AS568-153 black Buna-N (Nitrile) 50 Shore A O-Ring supplied with an inside diameter of 3.487 in (88.57 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 3.693 in (93.8 mm). An o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

As a material, Buna-N (Nitrile) is known for an economical choice for high-volume maintenance programs, reliable performance in both static and dynamic service. Expect good resistance to water, hydraulic fluids, and petroleum-based oils. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in ketones or polar solvents.

You will find this material specified across construction equipment, agricultural equipment, and general industrial maintenance.

Reference part number H50153 when ordering; the item is sold individually. Check the compound against your process media, pressure and temperature before committing to a design.
Item
H50153
Description
-153 BLACK BUNA 50D O-RING
Actual Cross Section
0.103 inch (2.62 mm)
Actual Inside Diameter
3.487 inch (88.57 mm)
Actual Outside Diameter
3.693 inch (93.8 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
No
NSF Certified
No
Product Code
6005
Product Category
O-Rings - Bulk - Commodity