-376 BLACK BUNA 90D O-RING

Buna-N O-Ring, 9.725 in ID x 0.21 CS, 90A, Black, -40 to 250°F

Status
Available
Est. Ship Date
31 Oct 2026
Material
Buna-N (Nitrile / NBR)
Dash Size
376
Durometer
90 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:
H90376
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Product Specification

-
Ordered as H90376, this is an AS568-376 black Buna-N (Nitrile) 90 Shore A O-Ring supplied with 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). The o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

Buna-N (Nitrile) is specified here for low compression set under sustained load, strong abrasion and tear resistance. The compound resists hydraulic fluids, petroleum-based oils, and water. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with polar solvents or ozone and direct sunlight.

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

Order part number H90376, sold individually. Nominal inside diameter is listed as 9 3/4 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.
Item
H90376
Description
-376 BLACK BUNA 90D 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