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-453 BLACK BUNA 50D O-RING

Buna-N O-Ring, 11.975 in ID x 0.275 CS, 50A, Black, -40 to 250°F

Status
Out of Stock
Est. Ship Date
20 Oct 2026
Material
Buna-N (Nitrile / NBR)
Dash Size
453
Durometer
50 Shore A
Cross Section Type
Round
Color
Black
Minimum Temperature
-40°F (-40°C)
Maximum Temperature
250°F (121°C)
Nominal Cross Section
1/4 inch
Nominal Inside Diameter
12 inch
Nominal Outside Diameter
12 1/2 inch
Unit of Measure
EA
SKU:
H50453

Product Specification

-
This o-ring is supplied in AS568-453 black Buna-N (Nitrile) 50 Shore A built to an inside diameter of 11.975 in (304.17 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 12.525 in (318.14 mm), catalogued under part number H50453. It creates a positive seal at flange, piston and rod interfaces without added hardware.

As a material, Buna-N (Nitrile) is specified for strong abrasion and tear resistance, an economical choice for high-volume maintenance programs. This material stands up to propane and butane, petroleum-based oils, and many alcohols. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. Applications involving ketones or polar solvents call for a different compound.

It sees regular use in automotive, construction equipment, and general industrial maintenance.

This item is sold individually under part number H50453. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
Item
H50453
Description
-453 BLACK BUNA 50D O-RING
Actual Cross Section
0.275 inch (6.99 mm)
Actual Inside Diameter
11.975 inch (304.17 mm)
Actual Outside Diameter
12.525 inch (318.14 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
No
NSF Certified
No
Product Code
6005
Product Category
O-Rings - Bulk - Commodity