Hammond 1441-12BK3CWW 7x5x2 in Satin Black Steel Chassis, Walnut Sides

The 1441-12BK3CWW is a satin black steel chassis fitted with real walnut sides, measuring 7 in x 5 in x 2 in (178 mm x 127 mm x 51 mm). It is the walnut-side upgrade of the 1441-12BK3 satin black chassis and is aimed at electronics builders, audio and tube-equipment makers and OEM engineers who want a finished, furniture-grade look on a heavy-duty steel base.

The chassis is spot welded from 20 gauge steel (the drawing specifies 0.036 in steel) and finished in satin black powder paint. Unlike the plain steel versions, the drawing notes that this chassis includes the wooden sides, adhesive rubber feet and the required hardware. When fitted, the walnut sides bring the bottom-view outline to 195.58 mm [7.70 in] by 139.70 mm [5.50 in].

Inside, the usable box measures 175.97 mm [6.93 in] long, 124.66 mm [4.91 in] wide and 48.97 mm [1.93 in] high. Shipping weight is 1.27 lbs (0.58 kg), and the part ships shrink wrapped. At 7 in wide and 5 in deep it is one of the more compact footprints in the 1441 line, and the ordering table lists no perforated chassis cover for this size.

An optional satin black bottom plate, 1431-12BK3, closes the underside; bottom plates are punched with 4 holes of 3/16 in diameter, and the chassis includes 1/8 in holes to accept them. Bottom plate screws are sold separately (black cover screws 1421J6BK, pkg of 6, 6-32 x 1/4 in self-tapping), and the drawing warns that screws should not be torqued past 4.43 lbf.in (50 cN.m). Replacement clear self-adhesive rubber feet are listed as 1421T6CL (pkg of 24).

The 1441-12BK3CWW is RoHS and REACH compliant. Enclosures can be factory modified (milling, drilling, printing), and solid models are available in STEP or IGES format for layout work.