Heatsinks - Large, One Surface
1000 Watt
Cast Aluminum Heatsink
(HSK) HEATSINK1000
1000 watt cast aluminum heatsink. 13-1/2 pounds of aluminum. Back is cast with dividers that could be milled off. Various tapped mounting holes. Shelf worn and some with bent fins or chipped casting. 4-1/4"H x 7-7/8"W x 12". Fin width at base of heatsink measures 1/4" wide.
$99 each
Anodized Aluminum Heatsink
hsk-022181a
(HSK) S47C0003-01
Anodized aluminum heatsink. 15 fins. All 1 piece extrusion. Fifteen (15), #6 threaded holes each side. Bottom side flat but all sinks have a slight warp due to manufacturing defect.

Bottom plate dimensions: 7-1/4" x 12"
Fins: 5-1/8"W
Total height: 2-3/8"
Weight: 5.14 lbs

$49 each - $45 (3+)
Transceiver Heatsink
(HSK) 380409
Transceiver heatsink. Anodized black. 1 sided. Many holes (as shown). 5-1/8" x 11" x 5/8"H.
$18 each
HF Transceiver Heatsink
(HSK) 380117
HF transceiver heatsink. Anodized black. Each fin has micro fins. 6-1/4" x 10-1/2" x 1-9/16"H.
$107 each
Heatsink
(HSK) 200478
Large, 1 surface heatsink. Aluminum - chromate. 10 fins. Assorted holes. Fins have micro ribs to increase radiation. 5" x 5" x 7/8" high.
*** SOLD OUT ***
Heavy Duty Heatsink Chassis
(HSK) 112
Heavy duty heatsink chassis has various holes. Mates with optional cover (below left). Chassis measures: 1-3/4"H x 5-7/8" x 8-1/4".
*** SOLD OUT ***
Heatsink 1/2 Cover
hsk-112c_5
(HSK) 112C
Cover only for (HSK) 112 (above right). 2-1/16" high x 5-7/8" x 6-7/8".
$6 each - $5 (6+), $4 (12+)
Heatsink 1/2 Cover
hsk-112c_5
(HSK) 112C/2
Same as above left cover but 3" long.
$5 each - $4 (4+)
Heatsink
(HSK) HSD
12 fin, flat bottom, 1 surface heatsink. 5-3/16"L x 3-9/16"W x 27/32"D. (131.8mm x 90.5mm x 21.5mm) Four 1/8" mounting holes. 3" x 4-1/4" CRS.
$15 each - $14 (10+)
Semiconductor Cooler
Heatsink
(HSK) 580R572H06
Delta semiconductor cooler heatsink. High density internal fins. Require air cooling. 2" x .44" x 3-3/4". NSN 5961-00-824-3870.
$25