Image shown is representative and may differ from the actual product in size, proportions, and color shade
8.620 in
(218.95 mm)
15.000 in
(381.00 mm)
12
1.000 in
(25.40 mm)
13.000 in
(330.20 mm)
1/2"
SIL Parker SM355-75 Full Face Gasket, Size: 300#-8"-FF-1/2"
Material: SIL Parker SM355-75 Full Face Gasket
Size: 300#-8"-FF-1/2" Full Face Gasket
Part Number: SM355-75-300#-8"-FF-1/2"
Color: Red
Detailed Description
SM355-75-300#-8"-FF-1/2" is a Red, 75 Shore A, Silicone (VMQ) Full Face Gasket made from Parker Seal® (Parker). It is a 75 durometer Silicone (VMQ). [Parker Seal® (Parker) SM355-75 is manufactured with the following features & specifications: FDA Compliant, USP Class VI. SM355-75-300#-8"-FF-1/2" is a size 8, 300#-FF ASME Full Face Gasket. Material: 75 Durometer SIL Parker SM355-75 Full Face Gasket Size: 300#-8"-FF-1/2", 8 Pipe Size X 218.95mm ID X 381mm OD X 12 Bolt Qty X 25.400mm Bolt Dia. X 330.200mm Bolt Circle X 1/2" Thickness
| Technical Specification | Value |
|---|---|
| Compound Number | SM355-75 |
| Brand | Parker Seal® (Parker) |
| Material | Silicone (VMQ) |
| Color | Red |
| Durometer | 75 Shore A Hardness |
| High Temperature | 232 °C / 450 °F |
| Low Temperature | -51 °C / -60 °F |
| Geometry Specifications | |
| Type | Full Face Gasket |
| Size | 300#-8"-FF-1/2" |
| Pipe Size | 8 |
| ID | 218.95 mm / 8.620 in |
| OD | 381.00 mm / 15.000 in |
| Bolt Qty | 12 |
| Bolt Dia. | 25.40 mm / 1.000 in |
| Bolt Circle | 330.20 mm / 13.000 in |
| Thickness | 1/2" |
| Other Specifications | |
FDA Compliant | |
USP Class VI | |
USP <87> | |
Parker® SM355-75 is a rust colored VMQ silicone elastomer compound with a nominal hardness of 75 Shore A, developed to meet the qualification requirements of AMS 7267 for high reliability sealing applications. This silicone material is commonly used for O-rings, gaskets, and molded sealing components that require excellent temperature stability and long term environmental resistance. Parker SM355-75 is also manufactured to meet FDA and USP Class VI requirements, including USP <87>, making it suitable for regulated medical, pharmaceutical, and sanitary equipment applications.
With a broad operating temperature range of approximately -60°F to 450°F, this VMQ silicone compound performs well in environments exposed to hot air, weathering, ozone, water, glycols, alcohols, dilute acids, and bases. These properties make the material well suited for O-rings and gaskets used in medical devices, food processing equipment, and laboratory systems where temperature stability and material purity are important. Like many silicone elastomers, SM355-75 is not recommended for applications involving petroleum based oils, hydrocarbon fuels, chlorinated solvents, or highly dynamic sealing environments.
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