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Polyethylene 3/8 NPT Tapered Protective Plug For Pipe Threads

Brand Essentra Plastics	Brand Essentra Plastics	Pack Size 1.00	UOM EA	Size 3/8 NPT	Supplier Part Number P-17	Thread Sealant No	Alternate Part Numbers Alternate Part Number 17-P, Alternate Part Number C1EJ55, Alternate Part Number MI-05244731, Alternate Part Number MINO-02310X45122	Product Weight 0.01 lbs

Product Questions & Answers 4

Product Questions & Answers

Hey, will one of these plugs keep hydraulic fluid from leaking out during shipping?

Question by: Wade G on Jul 19, 2025, 1:04 PM

These plugs are designed to protect pipe threads with a tapered fit, but the product page doesn't explicitly state that they are designed to seal hydraulic fluid.

Answer by: Customer Support on Jul 21, 2025, 12:43 PM

got a 3/8 npt port i need to keep clean during storage, is this the right kind of plug for that

Question by: Frank M on Feb 10, 2026, 5:06 PM

For protecting pipe threads, this is a tapered polyethylene protective plug made for 3/8 NPT threads, so it’s a good match when you want to keep a 3/8 NPT threaded opening covered while it’s sitting or being handled.

Answer by: Customer Support on Feb 12, 2026, 7:27 AM

these just press in or do they thread into the fitting?

Question by: Roger L on Jun 3, 2025, 4:27 PM

Tapered NPT plugs thread in. The taper on the plug matches the taper of the pipe thread, so as you turn it in, it wedges snugly into the port. No press-fit here. Hand-tight is usually enough for a protective plug during storage or shipping, but a couple turns with a wrench will seat it more securely if you need it to stay put.

Answer by: Customer Support on Jun 5, 2025, 11:12 AM

Reckon these plugs will keep the threads clean 'til I'm ready to use 'em?

Question by: Hubert L on Jan 31, 2026, 7:29 PM

Absolutely, these polyethylene plugs are made to protect those threads from dirt and damage while they're in storage or transit.

Answer by: Customer Support on Feb 2, 2026, 8:04 AM

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