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7MM CS X 400MM ID BLACK BUNA 70D

Buna-N O-Ring, 7 x 400 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:
H7X400
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Product Specification

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This o-ring is supplied in black Buna-N (Nitrile) 70 Shore A supplied with an inside diameter of 400 mm (15.748 in), a cross section of 7 mm (0.276 in), and an outside diameter of 414 mm (16.3 in), catalogued under part number H7X400. It creates a positive seal at flange, piston and rod interfaces without added hardware.

The material holds up against hydraulic fluids, propane and butane, and petroleum-based oils. Buna-N (Nitrile) offers strong abrasion and tear resistance, an economical choice for high-volume maintenance programs. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). Applications involving ozone and direct sunlight or automotive brake fluid call for a different compound.

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

This item is sold individually under part number H7X400. Unit weight is approximately 60.147 g. Review your operating media and conditions against this specification before installation. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.
Item
H7X400
Description
7MM CS X 400MM ID BLACK BUNA 70D
Actual Outside Diameter
414 mm (16.3 inch)
Actual Cross Section
7 mm (0.276 inch)
Actual Inside Diameter
400 mm (15.748 inch)
FDA Compliant
No
Measurement System
Metric
Metal Detectable
No
NSF Certified
No
Product Code
6015
Product Category
O-Rings - Metric - Commodity