The 1590Z164G is a two-pack of pre-formed silicone rubber replacement gaskets for the long 1590Z164 diecast aluminum enclosures: the natural 1590Z164, the black 1590Z164BK and the gray 1590Z164GY. These boxes measure 14.17 in (360 mm) by 4.80 in (122 mm) with a 3.15 in (80 mm) total depth, and this gasket reseals the lid when the original is worn or damaged.

The 1590Z series uses a two-piece tongue and groove design with a replaceable one-piece silicone rubber gasket that protects against dust and water. The gasket's temperature rating is -40C to +150C (-40F to 302F), and the part page lists the gasket at IP66.

The part page gives the size as 14.1 in x 4.52 in x 0.12 in (358 mm x 115 mm x 3 mm). The drawing shows 14.090 in [357.88 mm] by 4.521 in [114.83 mm], with a section of 0.118 in [3.00 mm] by 0.134 in [3.40 mm]. The drawing specifies silicone rubber, with an alternate material from SHIN-ETSU, Type KE-931U and KE-941U (1:1) mixture.

Each 1590Z164G ships in a bag at 0.02 lbs (0.01 kg). It is RoHS and REACH compliant, UNSPSC 39121301.