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-003 BLACK BUNA 50D O-RING

Buna-N O-Ring, 0.056 in ID x 0.06 CS, 50A, Black, -40 to 250°F

Status
Out of Stock
Est. Ship Date
20 Oct 2026
Material
Buna-N (Nitrile / NBR)
Dash Size
3
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
1/16 inch
Nominal Outside Diameter
3/16 inch
Unit of Measure
EA
SKU:
H50003

Product Specification

-
The H50003 is an AS568-003 black Buna-N (Nitrile) 50 Shore A O-Ring built to an inside diameter of 0.056 in (1.42 mm), a cross section of 0.06 in (1.52 mm), and an outside diameter of 0.176 in (4.47 mm). This o-ring delivers dependable bidirectional sealing in a compact groove envelope.

The material holds up against water, petroleum-based oils, and greases and lubricants. Buna-N (Nitrile) is widely chosen for low compression set under sustained load and the most widely specified general-purpose sealing elastomer. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with automotive brake fluid or ozone and direct sunlight.

Typical settings include hydraulic and pneumatic systems, construction equipment, and automotive.

Stocked as H50003 and sold individually. Nominal inside diameter is listed as 1/16 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.
Item
H50003
Description
-003 BLACK BUNA 50D O-RING
Actual Cross Section
0.06 inch (1.52 mm)
Actual Inside Diameter
0.056 inch (1.42 mm)
Actual Outside Diameter
0.176 inch (4.47 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
No
NSF Certified
No
Product Code
6005
Product Category
O-Rings - Bulk - Commodity