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-394 BLACK BUNA 50D O-RING

Buna-N O-Ring, 24.94 in ID x 0.21 CS, 50A, Black, -40 to 250°F

Status
Out of Stock
Est. Ship Date
22 Oct 2026
Material
Buna-N (Nitrile / NBR)
Dash Size
394
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
3/16 inch
Nominal Inside Diameter
25 inch
Nominal Outside Diameter
25 3/8 inch
Unit of Measure
EA
SKU:
H50394

Product Specification

-
Part number H50394 is an AS568-394 black Buna-N (Nitrile) 50 Shore A O-Ring with an inside diameter of 24.94 in (633.48 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 25.36 in (644.14 mm). An o-ring remains the most cost-effective sealing element available for pressurized assemblies.

Expect good resistance to propane and butane, greases and lubricants, and water. Buna-N (Nitrile) is widely chosen for strong abrasion and tear resistance, low compression set under sustained load. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. Exposure to ketones or strong acids will shorten service life.

Common environments for this compound include hydraulic and pneumatic systems, agricultural equipment, and automotive.

This item is sold individually under part number H50394. Nominal inside diameter is listed as 25 inch. Check the compound against your process media, pressure and temperature before committing to a design.
Item
H50394
Description
-394 BLACK BUNA 50D O-RING
Actual Cross Section
0.21 inch (5.33 mm)
Actual Inside Diameter
24.94 inch (633.48 mm)
Actual Outside Diameter
25.36 inch (644.14 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
No
NSF Certified
No
Product Code
6005
Product Category
O-Rings - Bulk - Commodity