This straight brass adapter is useful for connecting 5/16 or 8mm ID rubber fuel line to a 1/4 NPT female port on fuel pumps, pressure regulators,
Beduan Brass Reducer Hose Barb Fitting, 5/16 -1/4 Hose ID
Brass Hose Barb Fittings – Male Pipe Thread Adapters
1/8 1/4 3/8 NPT Male x 1/8 3/16 1/4 5/16 3/8 Hose Barb
5/16 (8mm) ID Hose Barb x M6 Male, Male Straight Hose Barb, Brass Fitting
Miniature Male Hose Barb Brass Fitting
Straight 5/16 in End A Diameter Crimp & Hose Barb Fittings for
Brass Fuel Hose Barb 1/4 NPT Thread x 5/16 Hose - FO4278
MPT5-2,,,,MALE HOSE BARB 5/16 X 1/8NPT BRASS,General, 56% OFF
Uxcell Hose Barb Fitting Straight 10mm Barbed G1/4 Female Thread
Straight Or Elbow Brass Hose Pipe Fitting 6mm 8mm 10mm 12mm Barb
LTWFITTING Brass Fitting Coupler 5/16 Hose Barb x 1/4 Male NPT