APG stocks the H70MD009, an AS568-009 black Buna-N (Nitrile) 70 Shore A O-Ring supplied with an inside diameter of 0.208 in (5.28 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 0.348 in (8.84 mm). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.
It resists water, propane and butane, and petroleum-based oils. Buna-N (Nitrile) is valued for low compression set under sustained load, strong abrasion and tear resistance. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with ozone and direct sunlight or strong acids.
The compound is metal detectable for HACCP and foreign-body control programs. You will find this material specified across automotive, fluid power, and general industrial maintenance.
H70MD009 ships individually. Nominal inside diameter is listed as 7/32 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
description -009 BLACK BUNA 70D O-RING
uf_description2 METAL DETECTABLE, 0.070" (1.78MM) CS X 0.208" (5.28MM) ID
Actual_CS 0.07 inch (1.78 mm)
Actual_ID 0.208 inch (5.28 mm)
Actual_OD 0.348 inch (8.84 mm)
ProductCode Description O-Rings - FDA / Metal Detectable