Electro Hardware MS1049M17F16D Circuit Board Spacer M3

Product Description

The ELECTRO HARDWARE MS1049M17F16D is a round, female unthreaded circuit board spacer designed to provide precise standoff clearance between a PCB and a mounting surface. Molded from Nylon Grade 101 to MIL-P-17091B specification, this spacer measures 0.984 inches overall length, 0.236 inches outside diameter, and accepts an M3 screw through an inside diameter ranging from 0.126 to 0.142 inches. The uncoated finish suits clean-room-sensitive or static-controlled assembly environments. Electronics technicians and PCB assembly personnel install these spacers during board mounting in control panels, HVAC control boards, and industrial enclosures where consistent stack height and electrical isolation between layers are required.

This spacer is suited for metric fastener applications requiring M3 hardware and a 6 mm outer diameter standoff. Typical installations include residential and commercial HVAC control board assemblies, electrical enclosure PCB mounting, and any application where a lightweight, non-conductive round spacer with a defined 25 mm standoff height is specified. The nylon construction provides electrical insulation and resistance to common cleaning solvents used during board assembly.

Key Features

• Nylon Grade 101 construction per MIL-P-17091B for consistent material performance
• Female unthreaded body accepts M3 screws for straightforward PCB mounting
• 25 mm (0.984 inches) overall length with a tight length tolerance of -0.130 to 0.130 mm
• 6 mm (0.236 inches) outside diameter with inside diameter range of 3.2 to 3.6 mm
• Uncoated bright finish compatible with static-sensitive and clean assembly environments
• Lightweight at approximately 0.0001 pounds per unit

Compatibility

Designed as a metric M3 round circuit board spacer for PCB standoff applications requiring a female unthreaded nylon spacer with a 25 mm overall length and 6 mm outside diameter.

Installation Notes

Installation is performed by electronics technicians or qualified electricians during PCB assembly or control board service. Power down and de-energize all associated equipment before servicing any circuit board. Use appropriately sized M3 fasteners and avoid over-torquing, as nylon spacers can crack or deform under excessive clamping load. Follow applicable assembly standards and ESD protocols when handling circuit boards.