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-052 BLACK BUNA 70D O-RING

Buna-N O-Ring, 5.739 in ID x 0.07 CS, 70A, Black, -40 to 250°F

Status
Available
Est. Ship Date
23 Oct 2026
Material
Buna-N (Nitrile / NBR)
Dash Size
52
Durometer
70 Shore A
Cross Section Type
Round
Color
Black
Minimum Temperature
-40°F (-40°C)
Maximum Temperature
250°F (121°C)
Nominal Cross Section
5/64 inch
Nominal Inside Diameter
5 47/64 inch
Nominal Outside Diameter
5 57/64 inch
Unit of Measure
EA
SKU:
H70052
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Product Specification

-
APG stocks the H70052, an AS568-052 black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 5.739 in (145.77 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 5.879 in (149.33 mm). An o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

Buna-N (Nitrile) is specified here for economical choice for high-volume maintenance programs, strong abrasion and tear resistance. The compound resists many alcohols, hydraulic fluids, and propane and butane. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). It is not the right choice where polar solvents or automotive brake fluid are present.

Typical settings include general industrial maintenance, agricultural equipment, and automotive.

Reference part number H70052 when ordering; the item is sold individually. Unit weight is approximately 1.4826 g and nominal inside diameter is listed as 5 47/64 inch. Check the compound against your process media, pressure and temperature before committing to a design.
Item
H70052
Description
-052 BLACK BUNA 70D O-RING
Actual Cross Section
0.07 inch (1.78 mm)
Actual Inside Diameter
5.739 Inch (145.77 mm)
Actual Outside Diameter
5.879 inch (149.33 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
No
NSF Certified
No
Product Code
6005
Product Category
O-Rings - Bulk - Commodity