-352 BLACK BUNA 70D O-RING

Buna-N O-Ring, 4.85 in ID x 0.21 CS, 70A, Black, -40 to 250°F

Status
Available
Est. Ship Date
31 Oct 2026
Material
Buna-N (Nitrile / NBR)
Dash Size
352
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
3/16 inch
Nominal Inside Diameter
4 7/8 inch
Nominal Outside Diameter
5 1/4 inch
Unit of Measure
EA
SKU:
H70352
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Product Specification

-
Part number H70352 is an AS568-352 black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 4.85 in (123.19 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 5.27 in (133.86 mm). An o-ring compresses into its gland to block fluid or gas migration across a joint.

The material holds up against greases and lubricants, many alcohols, and hydraulic fluids. Buna-N (Nitrile) is widely chosen for the most widely specified general-purpose sealing elastomer, strong abrasion and tear resistance. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with ozone and direct sunlight or ketones.

Maintenance and OEM teams specify it across construction equipment, agricultural equipment, and fluid power.

This item is sold individually under part number H70352. Unit weight is approximately 0.011 g. Check the compound against your process media, pressure and temperature before committing to a design.
Item
H70352
Description
-352 BLACK BUNA 70D O-RING
Actual Cross Section
0.21 inch (5.33 mm)
Actual Inside Diameter
4.85 inch (123.19 mm)
Actual Outside Diameter
5.27 inch (133.86 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
No
NSF Certified
No
Product Code
6005
Product Category
O-Rings - Bulk - Commodity