-376 BLACK BUNA 70D O-RING

Buna-N O-Ring, 9.725 in ID x 0.21 CS, 70A, Black, -40 to 250°F

Status
Available
Est. Ship Date
1 Nov 2026
Material
Buna-N (Nitrile / NBR)
Dash Size
376
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
9 3/4 inch
Nominal Outside Diameter
10 1/8 inch
Unit of Measure
EA
SKU:
H70376
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Product Specification

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Part number H70376 is an AS568-376 black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 9.725 in (247.02 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 10.145 in (257.68 mm). An o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

As a material, Buna-N (Nitrile) delivers the most widely specified general-purpose sealing elastomer, strong abrasion and tear resistance. The compound resists many alcohols, petroleum-based oils, and propane and butane. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service.

You will find this material specified across agricultural equipment, fluid power, and general industrial maintenance.

Order part number H70376, sold individually. Unit weight is approximately 21.603 g and nominal inside diameter is listed as 9 3/4 inch. Review your operating media and conditions against this specification before installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.
Item
H70376
Description
-376 BLACK BUNA 70D O-RING
Actual Cross Section
0.21 inch (5.33 mm)
Actual Inside Diameter
9.725 inch (247.02 mm)
Actual Outside Diameter
10.145 inch (257.68 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
No
NSF Certified
No
Product Code
6005
Product Category
O-Rings - Bulk - Commodity