Stopcock Parts and Components

Stopcock parts and components give stopcocks a wider range of uses. Stopcock plug assemblies are also produced to replace parts in existing lab equipment. Plastic replacement stopcock parts and components, when paired with a stopcock, are often used in conjunction with separatory funnels, Schlenk flasks and burettes.

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826 – 840 of 2,196 results

826

Grainger GRAINGER INC

NC4015379 O RING 109 50 PK

Pricing & Availability

827

Vici Valco TUBE-NI .125/.083-.085 x 30

TUBE-NI .125/.083-.085 x 30

Pricing & Availability

828

Glass Expansion O-ring for Capricorn or Elegra Cap (PKT 3)

O-ring for Capricorn or Elegra Cap (PKT 3) Sourced from Glass Expansion

Pricing & Availability

829

Glass Expansion PCTFE O-rings (PKT 10)

PCTFE O-rings (PKT 10) Sourced from Glass Expansion

Pricing & Availability

830

Grainger O-Ring, 014, 713P71

The O-Ring 014-713P71 is a 70 durometer nitrile rubber O-ring with an inside diameter of 0.139 inches, an outside diameter of 0.187 inches, and a width of 0.024 inches. It has a temperature range of -30°F to +200°F and is rated for continuous use with petroleum oils. This O-ring meets military specification MIL-P-25732 and is made in the USA by Marco Rubber. It can provide a tight seal between machine parts and is sold in a package of 10 rings.

Pricing & Availability

831

Chemglass Life Sciences O-Ring, Kalrez 4079, Size #114 - Sealing element for laboratory fittings and valves

Kalrez 4079 perfluoroelastomer O-ring, size #114, designed for high-temperature and chemically aggressive laboratory sealing applications. It combines elastomeric flexibility with PTFE-like chemical resistance for reliable long-term performance.

Provides long-term service to 316°C and intermittent service to 343°C.
Not recommended for sealing applications below -5°C.
Resistant to polar solvents, strong organic solvents, and common acids.
Compatible with oxidizers, metal halogen compounds, chlorine, and inorganic salt solutions.
Suitable for use with fuels and hydrocarbon-based fluids.

Pricing & Availability

832

eMolecules 3881-21-8 | 9-((2R,3R,4R,5R)-4-Hydroxy-5-(hydroxymethyl)-3-methoxytetrahydrofuran-2-yl)-9H-purin-6-ol | AA Blocks LLC | MFCD28978391 | 282.256 | C11H14N4O5 | 0.000 | CO[C@@H]1[C@H](O)[C@@H](CO)O[C@H]1n1cnc2c(O)ncnc12 | 100mg | 840046999

9-((2R,3R,4R,5R)-4-Hydroxy-5-(hydroxymethyl)-3-methoxytetrahydrofuran-2-yl)-9H-purin-6-ol | AA Blocks LLC | 3881-21-8 | MFCD28978391 | 282.256 | C11H14N4O5 | 0.000 | CO[C@@H]1[C@H](O)[C@@H](CO)O[C@H]1n1cnc2c(O)ncnc12 | 100mg | 840046999

Pricing & Availability

833

Chemglass Life Sciences Chemglass O-Ring, Perfluoro (FFKM), White, Size 214 - CG-309-U-214

Perfluoro (FFKM) O-ring for high-performance sealing applications; white, size 214, provides high thermal stability and broad chemical resistance suitable for laboratory and process use.

Provides superior chemical resistance to acids, bases, and common solvents.
Wide service temperature range from -7 to 230° C.
White perfluoro (FFKM) formulation for high-purity applications.
Compatible with aggressive chemistries including chlorinated solvents and amines.
Suitable for seals and fittings in laboratory and process equipment.