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The PARKER KP81270 is a straight male pipe thread (MPT) hydraulic hose fitting machined from steel for use in hydraulic fluid transfer systems. It features a 0.25-inch inside diameter, a 1/8-27 NPTF thread, and an overall length of 1.8 inches. The NPTF thread form creates a pressure-tight mechanical seal without requiring a separate sealant on most installations, which matters in high-cycle or high-pressure hydraulic circuits. Fluid power technicians and hydraulic system mechanics install this fitting when connecting compatible rubber or thermoplastic hose assemblies to threaded ports on pumps, cylinders, valves, and manifolds.
This fitting is rated for straight-run connections and is sized for hose ID 4 mm (1/4 inch nominal) applications. It is sold in packages of four, making it practical for service shops restocking kits or completing multi-leg circuit builds. The 1/8-27 thread size is commonly encountered on smaller-bore hydraulic circuits, instrumentation lines, and lubrication systems in both industrial and mobile equipment environments.
Compatible with Parker 187 TC, 187 ST, 302, 304, 387 TC, 387 ST, 422, 424, 426, 436, 471TC, 471ST, 472TC, 482TC, 482ST, 487 TC, 487 ST, 722 TC, 722 ST, 787 TC, 787 ST, 797 TC, 797 ST, and 881 hose series as stated by the manufacturer.
Installation is performed by a qualified fluid power technician or hydraulic system mechanic. Shut down and depressurize the hydraulic system fully before removing or installing any fitting. Inspect the mating port threads for damage or contamination before assembly, and torque fittings according to the system designer's specifications for the port material and thread size. California Proposition 65 warnings apply to this product.
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