Specification Brand : Goldleaf Scientific BulletPoint : Female Pipe swivel crimp on fitting BulletPoint1 : ISO-KF Flange Size: NW-25 BulletPoint2 : Common Dimensions: A=1.97" (50mm), B=3.94" (100mm) BulletPoint3 : Ideal for high vacuum environments (Up to 1x10-8 Torr) BulletPoint4 : Easy Installation:These fittings are easy to install and provide a reliable and leak-proof connection between your equipment and grease gun. BulletPoint5 : Package Contents:3Pcs Straight,3Pcs 45 Degree Angled,3Pcs 90 Degree Angled;9 Total. Color : Stainless Steel ConnectorType : Nptf Male X Jic Female Swivel ConnectorType1 : Flange ConnectorType2 : Tee ExteriorFinish : Stainless Steel ExternallyAssignedProductIdentifier1 : 0765084145596 ExternallyAssignedProductIdentifier2 : 765084145596 IncludedComponents : no ItemName : Goldleaf Scientific VAC025T KF-25 3-Way Tee Fitting, Polished Stainless Steel 304 ItemPackageDimensions_Height : 1 inches ItemPackageDimensions_Length : 4 inches ItemPackageDimensions_Width : 4 inches ItemPackageQuantity : 1 ItemShape : tee ItemTypeKeyword : hydraulic-fittings Manufacturer : Goldleaf Scientific Material : Stainless Steel ModelName : NO ModelNumber : AY239201 NumberOfItems : 1 NumberOfPieces : 1 PartNumber : AY239201 ProductDescription : These KF-25 Tee fittings follow ISO-KF standards and have a flange size of NW-25. They are commonly used to build foreline vacuum plumbing and process systems. They are often called quick flange fittings because they are quick to assemble. A circumferential clamp and centering ring form the vacuum seal between the connecting flanges (please see top right figure - click to enlarge). The centering ring contains a rubber elastomer o-ring. The standard sizes for quick flange fittings are KF-10, KF-16, KF-25, KF-40, and KF-50 with flange sizes NW-10, NW-16, NW-25, NW-40, and NW-50, respectively. They are made of corrosion resistant stainless steel.