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-407 BLACK BUNA 50D O-RING

Buna-N O-Ring, 2.225 in ID x 0.275 CS, 50A, Black, -40 to 250°F

Status
Out of Stock
Est. Ship Date
20 Oct 2026
Material
Buna-N (Nitrile / NBR)
Dash Size
407
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
1/4 inch
Nominal Inside Diameter
2 1/4 inch
Nominal Outside Diameter
2 3/4 inch
Unit of Measure
EA
SKU:
H50407

Product Specification

-
Part number H50407 is an AS568-407 black Buna-N (Nitrile) 50 Shore A O-Ring built to an inside diameter of 2.225 in (56.52 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 2.775 in (70.49 mm). An o-ring delivers dependable bidirectional sealing in a compact groove envelope.

This material stands up to water, hydraulic fluids, and propane and butane. Buna-N (Nitrile) is widely chosen for strong abrasion and tear resistance, the most widely specified general-purpose sealing elastomer. 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 hydraulic and pneumatic systems.

Stocked as H50407 and sold individually. Nominal inside diameter is listed as 2 1/4 inch. Review your operating media and conditions against this specification before installation. For a size or compound outside the standard catalog, APG can quote from a print or sample.
Item
H50407
Description
-407 BLACK BUNA 50D O-RING
Actual Cross Section
0.275 inch (6.99 mm)
Actual Inside Diameter
2.225 inch (56.52 mm)
Actual Outside Diameter
2.775 inch (70.49 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
No
NSF Certified
No
Product Code
6005
Product Category
O-Rings - Bulk - Commodity