machining parts

Product Name: Stainless Steel Instrumentation Hex Fittings / Hex Nipple / Hex Coupling

Overview
Our stainless steel instrumentation hex fittings are precision CNC machined from high-quality 304 or 316L stainless steel bar stock. Designed specifically for the automation instrumentation industry, these fittings deliver exceptional dimensional accuracy, superior surface finish, and reliable sealing performance. Widely used in critical instruments such as tuning fork vibration switches, radar level meters, pressure transmitters, and other process control devices, our fittings meet the exacting standards of leading instrumentation manufacturers.

Key Features

· Material: Premium 304 or 316L stainless steel bar stock — 316L offers enhanced corrosion resistance for aggressive or marine environments
· Process: CNC machining from solid stock — ensures consistent precision, superior surface finish, and eliminates porosity issues common in cast fittings
· Thread Precision: Machined to ASME B1.20.1 (NPT), ISO 7-1 (BSPT), or metric standards with strict control over thread form, pitch diameter, and taper — improper threading compromises sealing integrity and can lead to instrument failure
· Surface Finish: High surface finish (low Ra value) achieved through precision machining and optional passivation — essential for clean appearance and corrosion resistance in visible instrumentation applications
· Dimensional Accuracy: Tight tolerances maintained across hex flats, overall length, and concentricity — critical for proper fitment in instrument housings and manifolds
· Quality Assurance: 100% dimensional inspection, thread gauge verification, and material certification (MTR) available upon request

Applications

· Tuning fork vibration switches and level switches
· Radar level transmitters and guided wave radar instruments
· Pressure transmitters and differential pressure instruments
· Temperature sensors and thermowells
· Analyzers and process automation equipment
· Hydraulic and pneumatic instrumentation systems

Why Choose Our Instrumentation Fittings?

· Instrument Industry Expertise: We are a trusted supplier to multiple instrumentation companies, with deep understanding of the quality requirements specific to this industry — from thread accuracy to cosmetic finish
· Superior Thread Quality: Our CNC machining process ensures precise thread geometry, reducing installation torque variation and eliminating leakage risks at critical seal points
· Flawless Surface Finish: High-quality bar stock combined with precision machining and optional passivation delivers the clean, professional appearance demanded by instrument manufacturers
· Material Traceability: Full material certification ensures compliance with grade specifications — critical for instruments used in hazardous or regulated environments
· Consistent Quality: Advanced CNC equipment and rigorous in-process inspection deliver part-to-part consistency, reducing assembly issues for high-volume instrument production
· Flexible Quantities: Capable of handling both prototyping and production volumes with competitive pricing