The Hammond 1444-17174 is a square 17 x 17 in chassis with a 4 in height, matching the largest footprint in the 1444 Series table, with 3.9 in of inner box height. It is an open-bottom, natural-finish aluminum chassis from the 1444 Series, aimed at electronics hobbyists, audio and instrument builders and OEM engineers who need a rigid, easy-to-machine platform for mounting transformers, sockets, controls and circuit boards.

The chassis is spot welded for heavy-duty construction and is formed from 0.051" aluminum (0.05 in (1 mm) in the series table) in a natural aluminum finish. Material is listed as aluminum and the part is RoHS and REACH compliant.

Per the series table the 1444-17174 measures 17.00 in (432 mm) wide, 17.00 in (432 mm) deep and 4.00 in (102 mm) high. The drawing gives an inner box width of 429.21 mm [16.90 in], inner box length of 429.21 mm [16.90 in] and inner box height of 99.01 mm [3.90 in]. It is the taller companion to the 1444-17173 (3 in high), and both take the 1434-1717 bottom plate.

The bottom plate (1434-1717) is optional and sold separately; optional bottom plates are punched with 4 holes of 3/16 in diameter. Bottom plate hardware is not provided: order part 1421J6, a package of 6 plated 6-32 x 1/4 in self-tapping cover screws. Note that the 1451 Series steel chassis covers are not compatible with this series.

The enclosure can be factory modified (milling, drilling, printing), and solid models are available in STEP or IGES format for layout work before you cut metal.