Electro Hardware MS1025M17F16D Round Circuit Board Spacer M3

Product Description

The ELECTRO HARDWARE MS1025M17F16D is a round, female unthreaded circuit board spacer designed to maintain consistent standoff distance between a PCB and a mounting surface or secondary board. Made from Nylon Grade 101 and compliant with MIL-P-17091B, this spacer accepts an M3 screw and provides a stable, non-conductive barrier in electronic assemblies. The overall length is 13 mm (approximately 0.512 inches), the outside diameter is 6 mm (approximately 0.236 inches), and the inside diameter ranges from 3.2 to 3.6 mm (approximately 0.126 to 0.142 inches). The uncoated nylon body resists electrical conductivity, making it a practical choice wherever board isolation is required.

This spacer is used in printed circuit board assemblies across a wide range of applications including HVAC control boards, electrical enclosures, industrial control panels, and consumer electronics. It is typically installed during board assembly or service when replacing damaged standoffs or adding clearance between stacked PCBs. The metric M3 thread size and round body shape suit standard PCB mounting hole patterns in both residential and commercial equipment. Electronics technicians, electricians, and HVAC service professionals working on control board assemblies will encounter this hardware during routine board replacement or refurbishment work.

Key Features

• Nylon Grade 101 construction provides electrical insulation and lightweight durability
• MIL-P-17091B fastener standard compliance for verified dimensional and material consistency
• Female unthreaded bore accepts M3 screws with inside diameter tolerance of 0 to 0.270 mm
• Overall length tolerance of -0.130 to 0.130 mm for consistent stack height in multi-board assemblies
• Uncoated bright finish — no metallic coating to interfere with electrical isolation
• Round body shape fits standard PCB mounting hole patterns without special tooling

Compatibility

Designed as an OEM-style replacement or new-installation standoff for printed circuit board assemblies requiring an M3 screw size, 13 mm overall length, and a 6 mm outside diameter round nylon spacer.

Installation Notes

Installation is performed by electronics technicians or electricians during PCB assembly or board-level service. Always de-energize and discharge any capacitors in the assembly before handling circuit boards or replacing standoffs. Use appropriately sized M3 fasteners and avoid overtightening, which can crack the nylon body. Refer to the equipment manufacturer's service documentation for required standoff placement and torque guidance.