Specifications:

Barb Size:  ~3/8" OD (~11mm at widest point in barb tip), 8.15mm ID
Thread Size:  G 1/4" (BSPP)
Materiel:  Nickel Plated Brass
Thread Length:  4mm
Total Length:  ~1 1/8" (28mm)
Fitting Type:  Threaded Barb
Quantity:  1 Barbed Fitting (Yes, these are sold INDIVIDUALLY!)
Suggested Use:  3/8" ID Tubing