The NSN 5920001604894 (Block Telephone Protector) part number 29BL0CK, 4300059-002, A121807, A121807, A40142-2 manufactured by American Telephone And Telegraph Co, Westinghouse Electric Corp, Lucent Technologies Inc, Telephone Company Of America is available in Jet Parts 360’s inventory. Owned and operated by ASAP Semiconductor, Jet Parts 360 has over six billion parts in its inventory, including NSN 5920001604894 . ASAP is devoted to streamlining the parts procurement process for our customers, making it easy for them to search through billions of parts to find exactly what they are looking for. We have dedicated account managers ready to solve procurement issues our clients face, whether it’s a need for aerospace parts, or an aircraft on ground situation. Submit a Quote for NSN 5920001604894 parts today to get started.