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Polyethylene 1/2 NPT Tapered Protective Plug For Pipe Threads

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Description & Features

Manufactured from polyethylene, this tapered plug is designed to protect 1/2 NPT pipe threads from dust, debris, and damage during storage, handling, and transit. The tapered profile ensures a secure fit across standard NPT thread sizes without requiring thread sealant. Essentra Plastics produces this plug under their Protective Closures product line, offering consistent dimensional accuracy suited for industrial hydraulic and fluid power applications. The lightweight polyethylene construction resists moisture and common industrial contaminants while remaining easy to install and remove by hand.

The Polyethylene 1/2 NPT Tapered Protective Plug For Pipe Threads is cataloged under number C1EJ56 and is a practical solution for protecting threaded fittings, ports, and connections on hydraulic components awaiting assembly or shipment.

SKU: P-23

Supplier Part Number (MPN): P-23

Alternate Part Numbers: 23-P, C1EJ56, MI-08751502, MINO-02310X98544

Specifications

Brand
Essentra Plastics
Brand
Essentra Plastics
Pack Size
1.00
UOM
EA
Size
1/2 NPT
Supplier Part Number
P-23
Thread Sealant
No
Alternate Part Numbers
Alternate Part Number 23-P, Alternate Part Number C1EJ56, Alternate Part Number MI-08751502, Alternate Part Number MINO-02310X98544
Product Weight
0.01 lbs

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Product Questions & Answers (4)

Question by: Floyd H on May 20, 2025, 2:10 PM
what size thread is this plug for, and is it the tapered kind or straight?
Answer by: Customer Support on May 22, 2025, 1:13 PM
Tapered NPT threads, half-inch size. The taper is actually what makes these work so well for pipe thread protection since it lets the plug seat snugly without needing any tools or extra hardware to hold it in place.
Question by: Carl H on Jan 10, 2026, 8:25 PM
What size pipe will this plug fit?
Answer by: Customer Support on Jan 12, 2026, 2:16 PM
This plug is made to fit a 1/2 NPT (National Pipe Taper) thread.
Question by: Cheryl G on Dec 30, 2025, 5:21 PM
Will this plug keep dirt and stuff out of the threads while I'm not using the pipe?
Answer by: Customer Support on Jan 1, 2026, 7:52 AM
That's what it's for. This tapered polyethylene plug is designed to protect those 1/2 NPT pipe threads from dirt, moisture, and other debris when they're not connected to anything.
Question by: Dean S on Dec 30, 2025, 1:55 PM
got a 1/2 npt port i need to keep clean during storage, is this plug the right kind?
Answer by: Customer Support on Dec 31, 2025, 6:14 PM
For protecting a 1/2 NPT pipe thread, this is the matching size. It is a tapered protective plug made for pipe threads, so it is meant to sit in the threads as a closure to keep the opening protected.