NYLON 1/2" BUSHING

🧾 Breaking it down:

• SB8758 → Manufacturer part number (Topaz / Southwire / Garvin cross-reference)
• 1/2" x 1/2" → Fits 1/2-inch knockout hole and 1/2-inch conduit opening
• Nylon bushing → Snap-in plastic insulating sleeve

🔧 What it’s used for:

• Electrical junction boxes
• Panel enclosures
• Conduit knockouts
• Any place where wire passes through a metal hole

It helps:

• Prevent wire insulation damage
• Smooth sharp metal edges
• Improve code compliance for electrical installs

⚙️ Typical features:

• Nylon 6/6 construction (corrosion-proof, lightweight)
• Snap-in locking fingers for fast install
• Rated for electrical enclosure use
• High vibration resistance and abrasion protection (southwire.com spec listings)

🧠 Simple explanation:

It’s a plastic snap-in ring that goes into a knockout hole in an electrical box so wires don’t get cut on sharp metal edges.