Why a 3/8 NPT female thread doesn't fit a 3/8 NPT male thread? : r/Plumbing

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NPT Male Thread , BSPP Female Thread Brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability Operating

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Product Description Durable and high standard brass compression connector fitting. Commonly used to connect lines for air, water, fuel, oil and inert

LTWFITTING Brass 3/8-Inch OD x 1/4-Inch Male NPT Compression Connector Fitting(Pack of 5)

KOOTANS 3/8 NPT x 3/8 NPT Male Solid Brass Hex Nipples, Heavy Brass Pipe Adapter Fittings Equal Nipples Connectors 4Pieces, Pipe Fittings - Canada

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