The 1441-12BK3 is a 7 in x 5 in x 2 in (178 mm x 127 mm x 51 mm) steel chassis finished in satin black powder paint. It is the satin black version of this size; the same chassis is offered in ASA 61 grey as 1441-12, and with real walnut sides as 1441-12BK3CWW. It suits electronics hobbyists, audio and tube-equipment builders, and OEM engineers who need an open-bottom metal base for mounting components.
Construction is spot welded, heavy-duty 20 gauge steel; the drawing specifies 0.036 in steel for both the chassis and the optional bottom plate. The inner box measures 175.97 mm [6.93 in] long, 125.17 mm [4.93 in] wide and 48.97 mm [1.93 in] high, which is the space available for transformers, boards and wiring. Shipping weight is 0.98 lbs (0.44 kg).
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. All components are sold separately. The matching satin black bottom panel is 1431-12BK3 (1431-12 in the other finish); bottom plates are punched with 4 holes of 3/16 in diameter and the chassis includes 1/8 in holes to accept them.
| Type | Chassis (Steel) |
| Series | 1441 Series Steel Chassis |
| Part Number | 1441-12BK3 |
| Long Description | chassis - steel; satin black finish |
| Short Description | STEEL CHASSIS 7X5X2 |
| Depth | 5.00 in (127 mm) |
| Width | 7.00 in (178 mm) |
| Height | 2.00 in (51 mm) |
| Inner Box Width | 125.17 mm [4.93 in] |
| Inner Box Height | 48.97 mm [1.93 in] |
| Inner Box Length | 175.97 mm [6.93 in] |
| Size (L X W X H) | 7 in x 5 in x 2 in (178 mm x 127 mm x 51 mm) |
| Rubber Feet | Sold separately |
| Included Items | None - all components sold separately |
| Bottom Panel (Sold Separately) | 1431-12BK3 (satin black); 1431-12 (grey) |
| Bottom Plate Screws (Sold Separately) | 1421J6BK black cover screws, pkg 6, 6-32 x 1/4" self-tapping; 1421J6 natural finish also listed |
| UPC | 623980964355 |
| UNSPSC | 39121301 |
| Gray Chassis | 1441-12 |
| Satin Black Chassis With Walnut Sides | 1441-12BK3CWW |
| Packaging Type | shrink wrap |
| Shipping Weight | 0.98 lbs (0.44 kg) |
| Color | Black |
| Finish | Satin black powder paint |
| Material | Steel |
| CAD Models | Solid models available in STEP or IGES |
| Steel Gauge | 20 |
| Construction | Spot welded steel, heavy duty |
| Factory Modification | Milling, drilling, printing available from factory |
| Bottom Plate Mounting | Optional bottom plates punched with 4 holes, 3/16" diameter; chassis includes 1/8" holes for bottom plate installation |
| Chassis Material Thickness | 0.036" steel |
| Bottom Plate Material Thickness | 0.036" steel |
| RoHS Compliant | Yes |
| REACH Compliant | Yes |
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The chassis is 7 in x 5 in x 2 in (178 mm x 127 mm x 51 mm). The drawing gives an inner box of 175.97 mm [6.93 in] long, 125.17 mm [4.93 in] wide and 48.97 mm [1.93 in] high.
No. All components are sold separately. The matching satin black bottom panel is 1431-12BK3, screws are 1421J6BK (pkg of 6, 6-32 x 1/4 in self-tapping), and rubber feet are sold separately.
The ordering table lists no perforated chassis cover for this size; only bottom panels are listed.
The chassis is spot welded 20 gauge steel, 0.036 in thick per the drawing, finished in satin black powder paint.
The same size is listed as 1441-12 in ASA 61 grey, and as 1441-12BK3CWW in satin black with real walnut sides.
Yes, the part is listed as both RoHS compliant and REACH compliant.
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