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Polyethylene 1 NPT Tapered Protective Plug For Pipe Threads

Description & Features

The Polyethylene 1 NPT Tapered Protective Plug For Pipe Threads is an essential component for safeguarding industrial pipe threads. Designed by Essentra Plastics, this protective closure effectively prevents contaminants and debris from entering threaded connections. Made from durable polyethylene, it ensures a reliable seal without the use of additional thread sealant. The plug's tapered design facilitates easy installation and removal, making it a practical choice for various industrial applications.

This protective plug is compatible with 1 NPT size threads, providing a precise fit and secure closure. The Alliance Blue color adds visibility, aiding in the identification and differentiation of plugged connections in complex systems. With its robust construction and practical features, this tapered plug is designed to meet the demands of industrial environments.

SKU: P-42

Supplier Part Number (MPN): 042A

Alternate Part Numbers: 42-P, C1EJ58

Specifications

Brand Essentra Plastics	Brand Essentra Plastics	Pack Size 2,000.00	UOM CT	Size 1 NPT	Supplier Part Number 042A	Thread Sealant No	Alternate Part Numbers Alternate Part Number 042A, Alternate Part Number 42-P, Alternate Part Number C1EJ58	Product Weight 0.01 lbs

Similar Products

Model Number	Size	Price	Action
P-42 Tapered Pipe Protective Plug	1 NPT
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P-23 Tapered Pipe Protective Plug	1/2 NPT
P-31 Tapered Pipe Protective Plug	3/4 NPT
P-68 Tapered Pipe Protective Plug	2 NPT
P-8 Tapered Pipe Protective Plug	1/8 NPT

Product Questions & Answers (4)

Question by: Floyd W on Apr 27, 2025, 8:19 PM

got some 1 npt pipes out back that need capping. will these blue plugs work for that

Answer by: Customer Support on Apr 29, 2025, 7:41 PM

Threading directly into 1 NPT pipe threads is what these protective closures handle best. They serve as a tapered plug to keep the inside of your pipes clean before installation.

Question by: Lynn W on Oct 22, 2025, 5:18 PM

got a 1 npt pipe fitting i need to keep clean while it’s sittin on the shelf, is this the right plug size?

Answer by: Customer Support on Oct 24, 2025, 11:02 AM

For a 1 NPT pipe thread, the 1 NPT tapered protective plug is the matching size. It’s made to cap off and protect pipe threads during storage or handling.

Question by: Peggy M on Jun 16, 2025, 6:48 AM

Just to make sure, this plug will fit a standard 1 NPT pipe thread, right?

Answer by: Customer Support on Jun 17, 2025, 8:09 AM

Absolutely. This polyethylene plug is specifically designed to fit a 1 NPT (National Pipe Tapered) standard pipe thread.

Question by: Jerry S on Jul 20, 2025, 3:53 PM

these fit standard 1 inch NPT pipe threads, right? just want to make sure before I order a bunch of em

Answer by: Customer Support on Jul 21, 2025, 7:10 PM

sized for 1 NPT tapered pipe threads. The taper is part of the design, so it seats snugly into the thread profile rather than just sitting loose on the end. If your pipe is 1 inch NPT, you're good to go.