BrochureAS9100D / ISO 9001:2015 Certification
TEK Precision
Parts Catalog

70106-28003-101

Piston

TEK Precision manufactures part number 70106-28003-101, Piston, as a build-to-print component for rotorcraft and fixed-wing platforms. Every part is produced to OEM specification with full traceability and first-article inspection.

Specifications

Part Number70106-28003-101
DescriptionPiston
Component TypePistons & Plungers

Manufacturing Pistons, Plungers and Spool Components

Pistons, plungers and spool components operate within hydraulic assemblies where dimensional stability under pressure and cycling determines whether the assembly holds its seal. TEK Precision turns these components on CNC turning centers including a Hitachi Seiki HT40 with 15-inch chuck and steady rest, and two Mori Seiki SL250 machines configured for 15-inch chuck work and for long-part work at 43 inches between centers.

Finish grinding is performed on Tschudin cylindrical grinders capable of 0.000002 inch resolution, with surface finish verified by profilometer.

Where a component forms part of a hydraulic assembly, TEK tests the completed unit in-house: test stands operate from 0 to 15 GPM with proof testing to 10,000 PSI, 3,500 PSI operating pressure and 3-micron filtration, using an automatic cycling device. An environmental chamber allows verification from minus 65°F to 500°F. Every unit ships with full test data traceable to the OEM specification.

Two hydraulic actuator assemblies, one with a polished chrome piston rod, by TEK Precision
Representative pistons & plungers manufactured by TEK Precision. Not a photograph of part 70106-28003-101.

Related reading: Why Hydraulic Assemblies Need More Than Inspection

Material traceability: what buyers should expect

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