This part is a kind of semiconductor called CC-150-100.

Function of this product has Clamping Couplings / Recessed Screws.

Manufacturers : ETC

Image and pinout :

Some of the text within the PDF file :

Clamping Couplings, Recessed Screws Climax Part Number BLACK OXIDE STEEL BLACK OXIDE STEEL WITH KEYWAY BORE SIZE (INCH) BORE SIZE (INCH) O.D. WIDTH CLAMP SCREW BOX WEIGHT* QTY. (OUNCE) ONE PIECE WITHOUT KEYWAY CC-025-025 CC-037-025 CC-037-037 CC-050-037 CC-050-050 CC-062-050 CC-062-062 CC-075-050 CC-075-062 CC-075-075 CC-087-062 CC-087-087 CC-100-050† CC-100-075 CC-100-100 CC-112-100 CC-112-112 CC-125-100 CC-125-125 CC-137-100 CC-137-137 CC-150-100 CC-150-150 CC-175-175 CC-200-200 CC-037-037-KW CC-050-050-KW CC-062-062-KW CC-075-075-KW CC-087-087-KW CC-100-100-KW CC-112-112-KW CC-125-125-KW CC-137-137-KW CC-150-150-KW CC-175-175-KW CC-200-200-KW 1/4 3/8 3/8 1/2 1/2 5/8 5/8 3/4 3/4 3/4 7/8 7/8 1 1 1 1-1/8 1-1/8 1-1/4 1-1/4 1-3/8 1-3/8 1-1/2 1-1/2 1-3/4 2 1/4 1/4 3/8 3/8 1/2 1/2 5/8 [ ... ]

CC-150-100 PDF Datasheet Download