The 1431-8BK3 is a satin black steel bottom plate that closes the base of Hammond's 6 in x 4 in 1441 series chassis. It is listed for the 1441-8BK3 satin black chassis and the 1441-8 grey chassis, and suits builders of classic, vintage-style and tube equipment, hobbyists and OEM designers who want a dark, finished underside.
The plate is 0.036" steel with a satin black finish. Per the series specification, optional bottom plates are punched with 4 holes 3/16" in diameter, and the chassis now includes 1/8" holes so the plate can be installed. Screws are ordered separately: the drawing lists 1421J6BK black cover screws and 1421J6 natural finish cover screws, both packages of 6 x 6-32 x 1/4" self-tapping screws.
Hammond lists the size as 6 in x 4 in x 0.04 in (152 mm x 102 mm x 1 mm). The drawing dimensions the plate at 152.40 mm [6.00 in] x 101.60 mm [4.00 in], 0.91 mm [.036 in] thick. The matching chassis is 20 gauge and measures 6.00 in (152 mm) wide, 4.00 in (102 mm) deep and 2.00 in (51 mm) high, with an assembled inner box of 150.57 mm [5.93 in] x 99.77 mm [3.93 in] x 48.97 mm [1.93 in].
The 1431-8BK3 ships in a bag at 0.25 lbs (0.11 kg) and is RoHS and REACH compliant. Chassis, plate, screws and rubber feet are each sold separately.
| Type | Bottom Plate |
| Series | 1441 Series Steel Chassis |
| Part Number | 1431-8BK3 |
| Long Description | Bottom plate for steel chassis. Satin black. |
| Short Description | STEEL CHASSIS COVER 6 X 4 |
| Plate Thickness | 0.91 mm [.036 in] |
| Size (L X W X H) | 6 in x 4 in x 0.04 in (152 mm x 102 mm x 1 mm) |
| Plate Size (Drawing) | 152.40 mm x 101.60 mm [6.00 in x 4.00 in] |
| UPC | 623980964331 |
| UNSPSC | 39121301 |
| Rubber Feet | Sold separately |
| Gray Chassis | 1441-8 |
| Chassis Depth | 4.00 in (102 mm) |
| Chassis Width | 6.00 in (152 mm) |
| Chassis Height | 2.00 in (51 mm) |
| Chassis Material | 0.036" steel |
| Chassis Steel Gauge | 20 |
| Satin Black Chassis | 1441-8BK3 |
| Cover Screws (Black) | 1421J6BK, Pkg 6, 6-32 x 1/4" self-tapping screws (sold separately) |
| Assembly Inner Box Width | 99.77 mm [3.93 in] |
| Assembly Inner Box Height | 48.97 mm [1.93 in] |
| Assembly Inner Box Length | 150.57 mm [5.93 in] |
| Chassis Bottom Plate Holes | 1/8" holes for optional bottom plate installation |
| Gray Bottom Plate Equivalent | 1431-8 |
| Cover Screws (Natural Finish) | 1421J6, Pkg 6, 6-32 x 1/4" self-tapping screws (sold separately) |
| Packaging Type | bag |
| Shipping Weight | 0.25 lbs (0.11 kg) |
| Color | Black |
| Finish | Satin black |
| Material | Steel |
| Mounting Holes | 4 holes, 3/16" diameter |
| Bottom Plate Material | 0.036" steel |
| RoHS Compliant | Yes |
| REACH Compliant | Yes |
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The 1441-8BK3 satin black chassis and the 1441-8 grey chassis, 6.00 in x 4.00 in x 2.00 in.
6 in x 4 in x 0.04 in (152 mm x 102 mm x 1 mm), 0.036" steel.
Satin black; the grey equivalent is 1431-8.
No. Use 1421J6BK (black) or 1421J6 (natural finish) cover screws, packages of 6 x 6-32 x 1/4" self-tapping screws, sold separately.
0.25 lbs (0.11 kg), packed in a bag.
Yes, RoHS and REACH compliant.
Hammond Manufacturing · 001100
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