8-309 BLACK BUNA 90D BACK-UP RING

Name: 8-309 BLACK BUNA 90D BACK-UP RING
SKU: HB90309
Availability: InStock

Status

Available

Est. Ship Date

23 Oct 2026

Material

Buna-N (Nitrile / NBR)

Dash Size

309

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

7/16 inch

Nominal Outside Diameter

13/16 inch

Unit of Measure

SKU:

HB90309

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Product Specification

Item

HB90309

Description

8-309 BLACK BUNA 90D BACK-UP RING

Actual Cross Section

0.21 inch (5.33 mm)

Actual Inside Diameter

0.412 inch (10.46 mm)

Actual Outside Diameter

0.832 inch (21.13 )

FDA Compliant

Measurement System

Imperial

Metal Detectable

NSF Certified

Product Code

6002

Product Category

O-Rings - Backup Rings