Parker-Hannifin Corporation
ENHANCED HOSE FITTING AND METHOD OF ASSEMBLY

Abstract:

A hose fitting (10) includes a nipple (12) with a first end that is insertable into a hose and a second opposite end (22), nipple mating threads (38) located between the first (18) and second ends (22), and a shoulder (42) located between the mating threads and the second end (22) and that projects radially outward relative to the nipple (12) mating threads. A nut (16) is positioned over the second end (22) of the nipple (12). A shell (14) is positioned over the first end of the nipple (12) and includes shell mating threads (48), wherein the shell is threaded onto the nipple (12) by a threaded connection of the nipple mating threads (38) and the shell mating threads (48). The shoulder (42) operates to prevent further rotation of the shell (14), and the resulting torque locks the shell (14) in place and provides a seal against leakage from the fitting assembly. The nipple (12) includes a planar surface (40) that extends from the mating threads (38) to a second planar surface (26) that meet to form the shoulder (42).