Hammond 1591LSFLBK 85x56x39mm Black General-Purpose ABS Flanged-Lid Box

The 1591LSFLBK is a black 1591L-size plastic enclosure whose lid carries molded wall-mounting flanges, so the finished assembly can be screwed flat to a panel, wall or chassis. It is intended for OEM engineers and integrators who need a compact housing for a vertically mounted printed circuit board, with card guides molded into all side walls that accept 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 3.35 in x 2.2 in x 1.54 in (85 mm x 56 mm x 39 mm). The drawing gives an inside length of 78.71 mm [3.099 in], inside width of 51.71 mm [2.036 in] and inside height of 34.90 mm [1.374 in], with a guide height of 29.90 mm [1.177 in] and a slot width of 2.09 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 1591LSFLBK 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 0.13 lbs (0.06 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.