F71
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O-Rings
O-Rings available in six different compositions
O
-Rings are available in six different materials from Scientific Instrument
Services. Each type has its advantages and disadvantages as listed in the
chart below and the type required depends on the O-Ring application. Of the
various types of O-Rings available from SIS, Viton™ is the most popular for mass spec-
trometers and other laboratory instruments. This is due to Viton’s high temperature stabil-
ity and good resistance to chemicals and ozone.
On the following pages, O-Rings are listed by both nominal and actual size. The nom-
inal size is the closest fractional dimension to which the O-Ring is tooled and manufac-
tured. During manufacture the O-Rings shrink in size during the curing process. This
accounts for the slight differences between the nominal and actual sizes. The I.D. is the
inside diameter and the width (W) is the thickness of the O-Ring material. Order O-Rings
by using the part number prefix listed in the table below followed by the standard size num-
ber listed first in the O-Ring tables, i.e. V-110 for 3/8" Viton O-Ring.
Viton, PTFE, and Silicone Sheets
Viton, PTFE, and red Silicone sheets are now available in 12" x 12" sheets in the thick-
nesses listed below. These sheets are particularly well suited for cutting your own gaskets
and seals. Other materials and thicknesses are available on special request.
O-Ring Properties-* use this prefix in front of the size number when ordering O-Rings, i.e. V-110 for Viton size 3/8” O-Ring.
Property
Buna-N
Viton
Silicone
PTFE
Kalrez
Part No. Prefix
B-
V-
S-
T-
K-
Tear Resistance
Fair
Good
Poor
Excellent
Good
Abrasive Resistance
Good
Good
Poor
Excellent
Good
Ozone Resistance
Poor
Excellent
Excellent
Good
Excellent
Weather Resistance
Fair
Excellent
Excellent
Good
Excellent
Heat Resistance
Fair
Excellent
Excellent
Good
Excellent
Chemical Resistance
Fair
Excellent
Good
Excellent
Excellent
Oil Resistance
Excellent
Excellent
Poor
Good
Excellent
Acid Resistance
Fair
Excellent
Good
Excellent
Excellent
Alkali Resistance
Good
Good
Fair
Excellent
Excellent
Steam Resistance
Fair
Fair
Poor
Good
Excellent
Minimum Usable Temp
-65°F
-65° F
-120°F
-110°F
-35°F
-54°C
-54°C
-85°C
-79°C
-37°C
Maximum Usable Temp.
300° F
500° F
450° F
500° F
550° F
150°C
260°C
232°C
260° C
288°C
Color
Black
Black
Red
White
Black
Part No.
Description
VS-0
Part #VS0—Click for details
Current Price: $100.86
Unit of Measure:
EA
Est. Ship Weight=0.8 lbs
Quantity in Stock=3
1/16" Viton
VS-1
Part #VS1—Click for details
DISCONTINUED
Unit of Measure:
EA
Est. Ship Weight=1.3 lbs
1/8" Viton
VS-2
Part #VS2—Click for details
DISCONTINUED
Unit of Measure:
EA
Est. Ship Weight=2.75 lbs
1/4" Viton
VS-3
Part #VS3—Click for details
DISCONTINUED
Unit of Measure:
EA
Est. Ship Weight=0.4 lbs
1/32" Viton
TS-0
Part #TS0—Click for details
Current Price: $36.00
Unit of Measure:
EA
Est. Ship Weight=0.7 lbs
Quantity in Stock=3
1/32" PTFE
TS-1
Part #TS1—Click for details
DISCONTINUED
Unit of Measure:
EA
Est. Ship Weight=1 lbs
1/16" PTFE
TS-2
Part #TS2—Click for details
Current Price: $92.00
Unit of Measure:
EA
Est. Ship Weight=2 lbs
Quantity in Stock=1
1/8" PTFE
TS-3
Part #TS3—Click for details
DISCONTINUED
Unit of Measure:
EA
Est. Ship Weight=2.5 lbs
1/4" PTFE
S1-0
Part #S10—Click for details
Current Price: $15.00
Unit of Measure:
EA
Est. Ship Weight=0.7 lbs
Quantity in Stock=1
1/16" Red Silicone
S1-1
Part #S11—Click for details
DISCONTINUED
Unit of Measure:
EA
Est. Ship Weight=1 lbs
1/8" Red Silicone
S1-2
Part #S12—Click for details
DISCONTINUED
Unit of Measure:
EA
Est. Ship Weight=2.5 lbs
1/4" Red Silicone
S1-3
Part #S13—Click for details
DISCONTINUED
Unit of Measure:
EA
Est. Ship Weight=4 lbs
1/2" Red Silicone
S1-4
Part #S14—Click for details
Current Price: $8.00
Unit of Measure:
EA
Est. Ship Weight=0.5 lbs
Not in stock. Standard lead time for out-of-stock items is approximately two weeks.
1/32" Red Silicone
- Table of Contents
(Print Catalog)Table of Contents of the Scientific Instrument Services general catalog volume 36. - Print Catalog F. Vacuum System Supplies SIS Vol. 36 catalog Section F - Vacuum System Supplies.
- Custom NW Pump Fittings
(Catalog F70) - O-Rings
(Catalog F71) - O-Ring Kits
(Catalog F72)