ASME-ASTM B16.5 SO 300 Flange with welded sleeve G 3/4

AISI 316 / EN 1.4401 stainless steel.
With G 3/4 sleeve welded for mounting on the GVL30 indicator thread.

Measurements according to ASME B16.5 standard.
Outer diameter: 124 mm
Flange thickness: 15.7 mm
Hole spacing: 88.9 mm
Hole diameter: 19.1 mm
Number of holes: 4