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7MM CS X 335MM ID BLACK BUNA 70D

Buna-N O-Ring, 7 x 335 mm, 70A, Black, -40 to 250°F

Status
Available
Est. Ship Date
24 Oct 2026
Material
Buna-N (Nitrile / NBR)
Durometer
70 Shore A
Cross Section Type
Round
Color
Black
Minimum Temperature
-40°F (-40°C)
Maximum Temperature
250°F (121°C)
Unit of Measure
EA
SKU:
H7X335
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Product Specification

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H7X335 is a black Buna-N (Nitrile) 70 Shore A O-Ring measuring an inside diameter of 335 mm (13.189 in), a cross section of 7 mm (0.276 in), and an outside diameter of 349 mm (13.74 in). In service, this o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

The compound resists many alcohols, water, and petroleum-based oils. That behavior comes from the compound itself: Buna-N (Nitrile) is valued for reliable performance in both static and dynamic service, strong abrasion and tear resistance. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Applications involving ketones or ozone and direct sunlight call for a different compound.

Typical settings include automotive, agricultural equipment, and fluid power.

Stocked as H7X335 and sold individually. Unit weight is approximately 51.075 g. Application requirements vary, so validate compatibility with your process conditions prior to installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.
Item
H7X335
Description
7MM CS X 335MM ID BLACK BUNA 70D
Actual Outside Diameter
349 mm (13.74 inch)
Actual Cross Section
7 mm (0.276 inch)
Actual Inside Diameter
335 mm (13.189 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity