JIS B 2401 is a Japanese Industrial Standard for O-Ring sizes. This standard, often referred to as Japanese Metrics, is organized into four series, based on their application. The O-Rings in each section have ascending number codes to complete the size reference.

- JIS: P Series Moving (dynamic)

- JIS: G Series Fixed (static)

- JIS: S Series Special Sizes

- JIS: V Series Vacuum Flange

- All JIS Sizes Sorted by Size

FKM 75 material is the closest to a universal elastomer for sealing over other types of elastomers. Fluorocarbon o-ring are commonly referred to as a o-ring, or FKM, Fluorel, FPM o-ring.

- Excellent against compression set and heat aging.

- Excellent for oil and grease application.

- Standard temperate from -15C to 200C.

G25 - ID 24.4mm x CS 3.1mm

G30 - ID 29.4mm x CS 3.1mm

G35 - ID 34.4mm x CS 3.1mm

G40 - ID 39.4mm x CS 3.1mm

G45 - ID 44.4mm x CS 3.1mm

G50 - ID 49.4mm x CS 3.1mm

G55 - ID 54.4mm x CS 3.1mm

G60 - ID 59.4mm x CS 3.1mm

G65 - ID 64.4mm x CS 3.1mm

G70 - ID 69.4mm x CS 3.1mm

G75 - ID 74.4mm x CS 3.1mm

G80 - ID 79.4mm x CS 3.1mm

G85 - ID 84.4mm x CS 3.1mm

G90 - ID 89.4mm x CS 3.1mm

G95 - ID 94.4mm x CS 3.1mm

G100 - ID 99.4mm x CS 3.1mm

G105 - ID 104.4mm x CS 3.1mm

G110 - ID 109.4mm x CS 3.1mm

G115 - ID 114.4mm x CS 3.1mm

G120 - ID 119.4mm x CS 3.1mm

G125 - ID 124.4mm x CS 3.1mm

G130 - ID 129.4mm x CS 3.1mm

G135 - ID 134.4mm x CS 3.1mm

G140 - ID 139.4mm x CS 3.1mm

G145 - ID 144.4mm x CS 3.1mm

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