Hammond 1591MSFLBK 85x56x26mm Black General-Purpose ABS Flanged-Lid Box

The 1591MSFLBK is a black low-profile 1591M plastic enclosure with wall-mounting flanges molded into the lid. It suits electronics builders and panel installers who want a shallow housing they can fasten directly to a surface while holding a vertically mounted PC board in the card guides molded into every side wall, sized for 1.5 mm (0.062 in) boards.

This is the economy version, molded from general purpose ABS rated UL94 HB and not flame retardant. It keeps the lap joint box-to-lid construction that guards against dust and splashing water and is designed to meet IP54. The lid is secured with self-tapping screws driven into fully plastic posts, and the black finish comes with black screws.

Nominal size is 3.34 in x 2.2 in x 1.03 in (85 mm x 56 mm x 26 mm). The drawing gives an inside length of 78.63 mm [3.096 in], inside width of 51.83 mm [2.041 in] and inside height of 20.90 mm [.823 in], with a guide height of 15.90 mm [.626 in] and a slot width of 2.07 mm [.082 in]. With the flanged lid the overall length grows to 110.08 mm [4.334 in], with mounting holes spaced 98.20 mm [3.866 in] apart.

Each 1591MSFLBK assembly includes the box, lid and 4 cover screws; recommended cover screw torque is 42-57 ozf.in (30-40 cN.m). Shipping weight is 0.11 lbs (0.05 kg), and the part is RoHS and REACH compliant. The inside of the lid accepts #4 self-tapping screws for mounting a board to the lid. For horizontal board mounting, 1591Z card adaptors are offered.