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-344 BLUE FKM 75D O-RING

Viton® O-Ring, 3.85 in ID x 0.21 CS, 75A, Blue, Metal Det., -15 to 400°F

Status
Out of Stock
Est. Ship Date
22 Oct 2026
Material
Fluoroelastomer (FKM/Viton)
Dash Size
344
Durometer
75 Shore D
Cross Section Type
Round
Color
Blue
Minimum Temperature
-15°F (-26°C)
Maximum Temperature
400°F (204°C)
Nominal Cross Section
3/16 inch
Nominal Inside Diameter
3 7/8 inch
Nominal Outside Diameter
4 1/4 inch
Unit of Measure
EA
SKU:
V75MD344

Product Specification

-
V75MD344 is an AS568-344 blue Viton® (FKM) 75 Shore A O-Ring with an inside diameter of 3.85 in (97.79 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 4.27 in (108.46 mm). In service, this o-ring remains the most cost-effective sealing element available for pressurized assemblies.

As a material, Viton® (FKM) is widely chosen for long service life in hot, chemically aggressive environments, excellent resistance to compression set and permeation. This material stands up to aggressive chemicals, engine and transmission fluids, and aromatic hydrocarbons. Published continuous service range is -15°F (-26.1°C) to 400°F (204.4°C). Applications involving low-molecular-weight organic acids or amines call for a different compound.

This o-ring meets FDA requirements for food contact, carries NSF listing, and is metal detectable for HACCP and foreign-body control programs. It sees regular use in chemical processing, aerospace, and semiconductor equipment.

This item is sold individually under part number V75MD344. Nominal inside diameter is listed as 3 7/8 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.
Item
V75MD344
Description
-344 BLUE FKM 75D O-RING
Actual Cross Section
0.21 inch (5.33 mm)
Actual Inside Diameter
3.85 inch (97.79 mm)
Actual Outside Diameter
4.27 inch (108.46 mm)
FDA Compliant
Yes
Measurement System
Imperial
Metal Detectable
Yes
NSF Certified
Yes
Product Code
6012
Product Category
O-Rings - FDA / Metal Detectable