Brass and Copper Parts We Machine
Representative copper-alloy part families from recent production.
Part Families, Tolerances, Order Patterns
| Part family | Common materials | Key tolerances | Typical finish | Typical order |
|---|---|---|---|---|
| Connector shells and inserts | C36000 | +/-0.01 mm, clean threads M1.6 and up | Bright as-machined | 1,000 to 10,000 pcs |
| Valve bodies | C36000, C46400 | +/-0.02 mm seats, pressure tested | Bare or plated | 200 to 2,000 pcs |
| Nozzle inserts | C36000 | Ra 0.8 internal profile | Bare | 500 to 5,000 pcs |
| Optical adjuster screws and blocks | C36000 | +/-0.005 mm pitch-critical features | Bright | 500 to 5,000 pcs |
| Thermal spreader plates | C11000 | Flatness 0.02 mm over 200 mm | Bare or Ni plated | 100 to 1,000 pcs |
| RF cavity and tuner parts | C36000 | Thread and cavity +/-0.02 mm | Bare (conductive) | 200 to 2,000 pcs |
| Heat sink plates and spreaders | C11000 | Base flat 0.02 mm | Bare or Ni plated | 100 to 1,000 pcs |
| Ground blocks and bus bars | C11000, C14500 | +/-0.02 mm, conductive faces bare | Tin plated on request | 500 to 5,000 pcs |
| Instrument nozzles and tips | C36000 | Orifice +/-0.01 mm | Bare | 500 to 5,000 pcs |
| Marine and pump fittings | C46400 | Thread gauge 100 percent | Bare, inhibited alloy | 200 to 2,000 pcs |
How to use this page: these are families we run repeatedly, so process risk is low and lead times are predictable. If your part is not listed, it is likely still in scope: send the drawing and we answer within 24 hours.
See electronics machining for where these parts go.
Brass and Copper Parts FAQ
C36000 or C11000 for my part?
C36000 when machinability and threads lead (connectors, valves); C11000 when thermal or electrical conductivity leads (heat sinks, bus bars). Tell us the function and the quote names the alloy.
Do brass parts ship without plating?
Yes, bare brass is conductive and often used as-machined on RF parts; plating is only added where the drawing calls it.
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