V-band coupling by RG Ray, genuine PN# 100080.
Approx 8.66 inch diameter x .281 channel width.
006021 RG Ray V-band Clamp (3595658)
010513 RG Ray V-band Clamp
050432-002 RG Ray V-band Clamp
100090 V-band Clamp Coupling
100123 RG Ray V-band Clamp Coupling