Which hydraulic fitting threads deserve the deepest bins in a hose shop or distribution warehouse? This four-tier stocking guide ranks JIC 37°, NPT, ORFS, and BSPP/BSPT by turnover, leak-return risk, and shelf coverage, with dash-size priorities for each family.

BSPP (ISO 228-1) and BSPT (ISO 7-1) share the same nominal sizes but seal in opposite ways: BSPP seals at the port face with an O-ring or washer, while BSPT seals on the taper thread with sealant.

removes the thread from the sealing job altogether: it is a 90° elbow carrying an ORFS male face seal (ISO 8434-3 / SAE J1453) on one end and an SAE straight-thread O-ring boss (ISO 11926-2 / SAE J1926) on the other.

Complete spec guide for 00018 ferrules used on SAE 100R7 thermoplastic hydraulic hose. Covers dash sizes -04 to -12, reference dimensions, crimping steps, compatible hose, applications, and FAQs. Stock and custom ferrules from Hand Hydraulic.

15611SW NPT swivel male fittings: size chart, thread specs, pressure ratings, applications, and FAQs. Stock and custom builds from Hand Hydraulic.

Complete spec guide for 22613 BSP female 60° cone interlock fittings. Includes dash sizes from -12 to -32, working pressure on SAE 100R2AT hoses, BSP threads from G3/4 to G2, and FAQs on the 60° cone seal. Stock and custom sizes from Hand Hydraulic.