O-Rings/S Series

Brand :

MISUMI

Caution

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Product Description

O-Rings/S Series
The O Ring is a commonly employed sealing component found in automation machines across a wide range of industries.
[Feature]
● Inner Diameter Minimum/ Maximum (mm.) : 2.5 to 49.5
● Thickness (mm.) : 1.5 and 2
● Material and Operating Temperature Range (℃)
Nitrile Rubber -> -30 to 100 ℃
Silicone Rubber -> -50 to 200 ℃
Fluoro Rubber -> -15 to 200 ℃
[Application]
O-rings are utilized across multiple industries to prevent the leakage of fluids or gases between two components

■Detailed Fitting Size

Type	No.	G Dimension (Tolerance + 0.25 0)			H Dimension H±0.05	R Dimension Max. Value
Type	No.	No Back-Up Ring	Back-Up Ring on One Side Ring	Back-Up Rings on Both Sides Ring	H Dimension H±0.05	R Dimension Max. Value
NSA·NSB·NSSW NSSK·NSF·NSFH	3 to 22	2.5	—	—	1.0	0.2
NSA·NSB·NSSW NSSK·NSF·NSFH	22.4 to 50	2.7	—	—	1.5	0.4

For Surface Mounting

For Fixing Cylinder Surface

No Back-Up Ring

For External Pressure

For Internal Pressure

Type	[ M ] Material	[ H ] Hardness (JIS Hs)	Color	Operation Temperature Range	Usage	Features
NSA	Nitrile Rubber	70±5	Black	-30~100°C	Mineral Oil Resistant	Most representative material with superior oil / abrasion resistance and heat stability.
NSB	Nitrile Rubber	90±5	Black	-25~100°C	Mineral Oil Resistant
NSSW	Silicon Rubber	50±5	Milky White	-50~200°C	Heat Resistant	Having excellent high and low temperature resistances, this material has the widest range of operating temperatures among synthetic rubbers. It is suitable for food-related applications.
NSSK	Silicon Rubber	70±5	Scarlet Red	-50~200°C	Heat Resistant
NSF	Fluoro Rubber	70±5	Black	-15~200°C	Heat Resistant	Best in oil / chemical resistance and heat stability as synthetic rubber. Suitable for a wide range of applications.
NSFH	Fluoro Rubber	90±5	Black	-15~200°C	Heat Resistant