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-315 BLACK BUNA 70D O-RING

Buna-N O-Ring, 0.787 in ID x 0.21 CS, 70A, Black, Metal Det., -40 to 250°F

Status
Out of Stock
Est. Ship Date
21 Oct 2026
Material
Buna-N (Nitrile / NBR)
Dash Size
315
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
13/16 inch
Nominal Outside Diameter
1 3/16 inch
Unit of Measure
EA
SKU:
H70MD315

Product Specification

-
H70MD315 is an AS568-315 black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 0.787 in (19.99 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 1.207 in (30.66 mm). In service, this o-ring compresses into its gland to block fluid or gas migration across a joint.

Buna-N (Nitrile) is specified here for low compression set under sustained load, reliable performance in both static and dynamic service. It resists propane and butane, many alcohols, and hydraulic fluids. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Exposure to polar solvents or automotive brake fluid will shorten service life.

This o-ring is metal detectable for HACCP and foreign-body control programs. Common environments for this compound include automotive, hydraulic and pneumatic systems, and general industrial maintenance.

This item is sold individually under part number H70MD315. As always, verify media compatibility and operating conditions against the requirements of your specific application. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.
Item
H70MD315
Description
-315 BLACK BUNA 70D O-RING
Actual Cross Section
0.21 inch (5.33 mm)
Actual Inside Diameter
0.787 inch (19.99 mm)
Actual Outside Diameter
1.207 inch (30.66 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
Yes
NSF Certified
No
Product Code
6012
Product Category
O-Rings - FDA / Metal Detectable