Quality Assurance Services


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National Technologies’ Quality Assurance department is an integral part of the each production unit in the company. Quality Assurance works hand-in-hand with all other departments to guarantee that each process is designed and managed to ensure conformance to print and capability requirements. Nothing is produced or moves through National Technologies without approval from Quality Assurance.  Engineering quality into the process is our recipe for 65 years of customer satisfaction.

  • First article inspection reports (FAI) are created at each step in the process ensuring that the process is followed and parts are correct.
  • Our high-end inspection equipment ensures that we can verify tight tolerances for any part.
  • Each part is sampled by our highly experienced inspectors. If the part doesn’t pass our AQL criteria (C=0 1.0 AQL), it doesn’t leave the dock. Period.

Equipment

  • Hexagon Global S CMMs
  • Sheffield Discovery 2 CMM
  • Micro-Vu Excel Vision System
  • Keyence LM-X Measurment System
  • Keyence VF Measurement System
  • Oasis Optical Inspection System
  • Mitutoyo RA-2200 Roundness Checker
  • Mitutoyo Formtracer Avant
  • Millipore Cleanliness Testing System
  • Optical Comparators
  • Mitutoyo SJ-410/SJ-210 Surface Roughness Checkers
  • Keyence LS-7000 Laser Micrometers
  • Imada ZTA-550 Force Tester
  • Auto Technology Salt Fog Chamber (for ASTM B117 Testing)

Hardness Testing Equipment

  • LECO LCR 500 Load Cell Rockwell Tester
  • LECO AMH Microhardness Tester
  • Clark Analog Rockwell Tester
  • King Tester Brinell Scope
  • Phase II PHT-1800 Leeb Tester
  • Buehler Simplimet 4000 Mount Press
  • Buehler Automet 250 Mount Polisher

Gaging

  • Sunnen PG-800/PG-810 Hole Gages
  • Thread Gages (Inch, Metric, J form, ACME, NPT, NPTF, NPSF)
  • Western gage Micro III Series 60/70 Digital Air Gage
  • Mahr Federal D-2500 Analog Air Gage
  • Bore Gages (.080″-10″ capacity)
  • Height Stands
  • Dial Indicators
  • Digital Drop Indicators
  • Dial Snap Gages (up to 12″)
  • Gage Blocks/Pins
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