PTFE PT55WH05 O-Ring, Size: -019
Material: PTFE PT55WH05 O-Ring
Size: AS568 -019 O-Ring
Part Number: PT55WH05-OR-019
PT55WH05
PTFE (Teflon®)
55
Shore D
EC 1935/2004
1895/05
EU 10/11
2023/06
Color: White
Detailed Description
PT55WH05-OR-019 is a White, 55 Shore D, PTFE (Teflon®) O-Ring. It is a 75 durometer PTFE (Teflon®). PT55WH05 is manufactured with the following features & specifications: EC 1935/2004, 1895/05, EU 10/11, 2023/06, FDA Compliant, USP Class VI, NSF 61 Certified, KTW (Drinking Water), WRAS (Drinking Water). PT55WH05-OR-019 is AS568 size -019 O-Ring also referred to as 1.78mm (Cross Sectional Diameter (CS)) x 20.35mm (Inside Diameter (ID)).
Material: 55 Durometer PTFE PT55WH05 O-Ring
Size: AS568 -019, 1.78mm CS X 20.35mm ID (0.070" CS X 0.801" ID)
| Technical Specification | Value |
|---|---|
| Compound Number | PT55WH05 |
| Material | PTFE (Teflon®) |
| Color | White |
| Durometer | 55 Shore D Hardness |
| High Temperature | 260 °C / 500 °F |
| Low Temperature | -200 °C / -328 °F |
| Geometry Specifications | |
| Cross Sectional Geometry | O-Ring |
| Size Standard | AS568 |
| Size | -019 |
| Cross Section (CS) | 1.78 mm / 0.070 in |
| Inside Diameter (ID) | 20.35 mm / 0.801 in |
| Other Specifications | |
EC 1935/2004 | |
1895/05 | |
EU 10/11 | |
2023/06 | |
FDA Compliant | |
USP Class VI | |
NSF 61 Certified | |
KTW (Drinking Water) | |
WRAS (Drinking Water) | |
PT55WH05 is a 55 shore D white virgin PTFE compound engineered for high purity applications requiring exceptional chemical resistance and regulatory compliance. Manufactured from 100% virgin PTFE, this material is ideal for backup rings, spring energized seals, semiconductor components, and other precision sealing components used with O-rings and gaskets in aggressive chemical environments. It offers outstanding resistance to solvents such as MEK, DMF, and acetone, along with extremely low gas permeability, self-lubricating properties, and a broad service temperature range of -200°C to 260°C. PT55WH05 meets FDA 21 CFR 177.1550, USP Class VI, NSF 61, KTW, WRAS, and multiple European food contact regulations, making it an excellent choice for medical, food processing, water treatment, and semiconductor applications.
PTFE, commonly known as Teflon®, is a high performance fluoropolymer widely used for sealing components, backup rings, bearing surfaces, and spring energized seals where conventional elastomers cannot withstand the operating environment. Unlike elastomeric materials, PTFE is rigid, exhibits extremely low friction, and provides near universal chemical resistance across a broad range of acids, solvents, and process chemicals. It is commonly used in chemical processing, semiconductor manufacturing, pharmaceutical equipment, and fluid handling systems where purity, low permeability, and long-term stability are essential. PTFE is often used alongside O-rings and gaskets as a support or sealing component to improve pressure resistance and overall sealing performance.
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