Oil Seal This item was sourced on www.MFG.com as one of the items in an RFQ in USA for Other Seals & Gaskets Production of an oil seal. Approximately 4.375" OD x 3.5" ID x 0.375" long. Please see drawing for specific dimensions. Lip material: nitrile. Please contact the buyer with any questions. The buyer is having this part quoted in multiple categories in order to determine the most cost effective method of manufacture. Part Part Number: W 3956-438 Material: Other Material Grade: Technical Specifications Category:Other Seals & Gaskets Dimensions0.0 x 0.0 inch Annual Usage:2178.0 Get quotes online for manufacturing services at MFG.com from machine shops, fabricators, job shops and contract manufacturers. MFG.com connects buyers and suppliers when the buyer has a need and the supplier has the right expertise and capacity. MFG.com analyzes all engineered parts and RFQs for improved manufacturability and to ensure quality and a quick quoting experience. Other Seals & Gaskets: Seals and gaskets are used between two mating parts to reduce or eliminate fluid leakage or protect internal mechanical components from external elements.