1/2" NPT Steel Port Plug AF979-08BLK – Black Coated, Internal Hex

PRODUCT OVERVIEW

This 1/2" NPT port plug (Part Number AF979-08BLK) is designed to securely seal unused ports and fittings in a wide range of automotive and performance applications. It features durable steel construction with a black coated finish for corrosion resistance and a clean, professional appearance.

KEY FEATURES

• 1/2" NPT (National Pipe Thread) tapered thread design
• Steel construction for strength and durability
• Black coated finish for corrosion resistance and aesthetics
• Internal hex drive for easy installation and removal
• Suitable for sealing unused intake manifold, vacuum, coolant, or oil ports

TECHNICAL DETAILS

• Thread type: NPT (tapered pipe thread)
• Thread size: 1/2" NPT
• Material: Steel
• Finish: Black coated
• Drive type: Internal hex
• Part Number: AF979-08BLK

INSTALLATION NOTES

• NPT plugs seal on the threads due to the taper; proper tightening is required for a leak-free seal.
• Use a suitable thread sealant such as AeroSeal (AF98-2023) or equivalent on NPT threads.
• Tighten until the plug seats firmly and sealing is achieved. Do not overtighten to avoid thread damage.