Conduit Fittings & Accessories

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Nylon Liquid Tight Threaded Plugs

Heyco Nylon Liquid Tight Threaded Plugs provide an integral sealing ring to ensure a superior seal at the mounting hole location, every time. The IP68 plugs provide a liquid-tight seal up to 70psi and are UL rated for type NEMA 3R, 4 and 4X applications. They have a hex-shaped head with a slot for wrench or screwdriver installation and are made from electrically non-conductive Nylon 6/6. This non-corrosive material resists salt water, weak acids, gasoline, alcohol, oil, grease, and common solvents. Heyco Nylon Liquid Tight Threaded Plugs are a cost-effective option over brass or steel NPT and PG plugs. These threaded plugs are ideal for hydraulic and pneumatic applications.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.	Product	Type	Thread Size	Material	Color
Conduit Fittings & Accessories 1/2 NPT BLACK THREADED PLUG 3546B Heyco 1: $0.74 170,578In Stock	Mfr. Part No. 3546B Mouser Part No 836-3546B	Heyco	Conduit Fittings & Accessories 1/2 NPT BLACK THREADED PLUG Learn More about Heyco npt pg threaded plugs	Datasheet	170,578In Stock	$0.74 $0.662 $0.637 $0.619 View $0.60 $0.594 $0.535 $0.492 $0.468	Min.: 1 Mult.: 1	Hole Plugs	Threaded Plug	1/2 in NPT		Black
Conduit Fittings & Accessories 1/4 NPT BLACK THREADED PLUG 3544B Heyco 1: $0.72 1,008In Stock	Mfr. Part No. 3544B Mouser Part No 836-3544B	Heyco	Conduit Fittings & Accessories 1/4 NPT BLACK THREADED PLUG Learn More about Heyco npt pg threaded plugs	Datasheet	1,008In Stock	$0.72 $0.608 $0.57 $0.543 View $0.517 $0.485 $0.459 $0.448	Min.: 1 Mult.: 1	Hole Plugs	Threaded Plug	1/4 in NPT		Black
Conduit Fittings & Accessories 1 NPT BLACK THREADED PLUG 3548B Heyco 1: $2.00 412In Stock	Mfr. Part No. 3548B Mouser Part No 836-3548B	Heyco	Conduit Fittings & Accessories 1 NPT BLACK THREADED PLUG Learn More about Heyco npt pg threaded plugs	Datasheet	412In Stock	$2.00 $1.69 $1.59 $1.51 View $1.44 $1.40 $1.36 $1.30 $1.26	Min.: 1 Mult.: 1	Hole Plugs	Threaded Plug	1 in NPT		Black
Conduit Fittings & Accessories 3/4 NPT BLACK THREADED PLUG 3547B Heyco 1: $1.11 6,683In Stock 6,000Expected 11/11/2026	Mfr. Part No. 3547B Mouser Part No 836-3547B	Heyco	Conduit Fittings & Accessories 3/4 NPT BLACK THREADED PLUG Learn More about Heyco npt pg threaded plugs	Datasheet	6,683In Stock 6,000Expected 11/11/2026	$1.11 $0.94 $0.881 $0.839 View $0.799 $0.734 $0.697 $0.67 $0.64	Min.: 1 Mult.: 1	Hole Plugs	Threaded Plug	3/4 in NPT		Black
Conduit Fittings & Accessories LTTP PG7 BLK INTEGRAL RING 3574B Heyco 1: $0.52 4,909In Stock	Mfr. Part No. 3574B Mouser Part No 836-3574B	Heyco	Conduit Fittings & Accessories LTTP PG7 BLK INTEGRAL RING Learn More about Heyco npt pg threaded plugs	Datasheet	4,909In Stock	$0.52 $0.497 $0.491 $0.487 View $0.483 $0.481 $0.41 $0.404 $0.403	Min.: 1 Mult.: 1	Hole Plugs	Threaded Plug	PG7	Nylon	Black
Conduit Fittings & Accessories TP PG 7 GRAY 3405 Heyco 1: $0.76 202In Stock 100Expected 04/11/2026	Mfr. Part No. 3405 Mouser Part No 836-3405	Heyco	Conduit Fittings & Accessories TP PG 7 GRAY Learn More about Heyco npt pg threaded plugs	Datasheet	202In Stock 100Expected 04/11/2026	$0.76 $0.641 $0.602 $0.573 View $0.552 $0.512 $0.495 $0.481	Min.: 1 Mult.: 1	Hole Plugs	Threaded Plug	PG7	Polystyrene (PS)	Gray
Conduit Fittings & Accessories TP-PG9 GRAY PG THRD PLUGS 3407 Heyco 1: $0.83 1,830In Stock 100On Order	Mfr. Part No. 3407 Mouser Part No 836-3407	Heyco	Conduit Fittings & Accessories TP-PG9 GRAY PG THRD PLUGS Learn More about Heyco npt pg threaded plugs	Datasheet	1,830In Stock 100On Order	$0.83 $0.695 $0.652 $0.621 View $0.581 $0.551 $0.532 $0.517	Min.: 1 Mult.: 1		Hole Plug		Polystyrene (PS)	Gray
Conduit Fittings & Accessories TP-PG13 GRAY PG THRD PLUGS 3412 Heyco 1: $1.08 200In Stock	Mfr. Part No. 3412 Mouser Part No 836-3412	Heyco	Conduit Fittings & Accessories TP-PG13 GRAY PG THRD PLUGS Learn More about Heyco npt pg threaded plugs	Datasheet	200In Stock	$1.08 $0.913 $0.902 $0.765 View $0.761 $0.724 $0.69 $0.612	Min.: 1 Mult.: 1	Hole Plugs	Threaded Plug	PG13	Polystyrene (PS)	Gray
Conduit Fittings & Accessories TP-PG16 GRAY PG THRD PLUGS 3414 Heyco 1: $1.09 146In Stock	Mfr. Part No. 3414 Mouser Part No 836-3414	Heyco	Conduit Fittings & Accessories TP-PG16 GRAY PG THRD PLUGS Learn More about Heyco npt pg threaded plugs	Datasheet	146In Stock	$1.09 $1.02 $0.867 $0.749 View $0.736 $0.70 $0.657	Min.: 1 Mult.: 1	Hole Plugs	Threaded Plug	PG16	Polystyrene (PS)	Gray
Conduit Fittings & Accessories TP-PG21 GRAY PG THRD PLUGS 3416 Heyco 1: $1.47 920In Stock	Mfr. Part No. 3416 Mouser Part No 836-3416	Heyco	Conduit Fittings & Accessories TP-PG21 GRAY PG THRD PLUGS Learn More about Heyco npt pg threaded plugs	Datasheet	920In Stock	$1.47 $1.33 $0.872 $0.818	Min.: 1 Mult.: 1	Hole Plugs	Threaded Plug	PG21	Polystyrene (PS)	Gray
Conduit Fittings & Accessories TP-PG29 GRAY PG THRD PLUGS 3418 Heyco 1: $2.29 98In Stock	Mfr. Part No. 3418 Mouser Part No 836-3418	Heyco	Conduit Fittings & Accessories TP-PG29 GRAY PG THRD PLUGS Learn More about Heyco npt pg threaded plugs	Datasheet	98In Stock	$2.29 $2.00 $1.97 $1.66 View $1.64 $1.55	Min.: 1 Mult.: 1		Hole Plug		Polystyrene (PS)	Gray
Conduit Fittings & Accessories 3/8 NPT BLACK THREADED PLUG 3545B Heyco 1: $0.76 1,504In Stock	Mfr. Part No. 3545B Mouser Part No 836-3545B	Heyco	Conduit Fittings & Accessories 3/8 NPT BLACK THREADED PLUG Learn More about Heyco npt pg threaded plugs	Datasheet	1,504In Stock	$0.76 $0.643 $0.597 $0.569 View $0.541 $0.508 $0.482 $0.459 $0.44	Min.: 1 Mult.: 1	Hole Plugs	Threaded Plug	3/8 in NPT		Black
Conduit Fittings & Accessories LTTP PG9 BLK INTEGRAL RING 3575B Heyco 1: $0.76 2,675In Stock	Mfr. Part No. 3575B Mouser Part No 836-3575B	Heyco	Conduit Fittings & Accessories LTTP PG9 BLK INTEGRAL RING Learn More about Heyco npt pg threaded plugs	Datasheet	2,675In Stock	$0.76 $0.725 $0.431	Min.: 1 Mult.: 1	Hole Plugs	Threaded Plug	PG9	Nylon	Black
Conduit Fittings & Accessories LTTP PG13.5 BLK INTEGRAL RING 3576B Heyco 1: $0.98 466In Stock	Mfr. Part No. 3576B Mouser Part No 836-3576B	Heyco	Conduit Fittings & Accessories LTTP PG13.5 BLK INTEGRAL RING Learn More about Heyco npt pg threaded plugs	Datasheet	466In Stock	$0.98 $0.652 $0.618 $0.545	Min.: 1 Mult.: 1	Hole Plugs	Threaded Plug	PG13.5	Nylon	Black
Conduit Fittings & Accessories TP-PG11 GRAY PG THRD PLUGS 3402 Heyco 1: $0.87 122Expected 04/11/2026	Mfr. Part No. 3402 Mouser Part No 836-3402	Heyco	Conduit Fittings & Accessories TP-PG11 GRAY PG THRD PLUGS Learn More about Heyco npt pg threaded plugs	Datasheet	122Expected 04/11/2026	$0.87 $0.732 $0.686 $0.653 View $0.631 $0.618 $0.584 $0.562 $0.545	Min.: 1 Mult.: 1	Hole Plugs	Threaded Plug	PG11	Polystyrene (PS)	Gray
Conduit Fittings & Accessories TP-PG36 GRAY PG THRD PLUGS 3415 Heyco 1: $5.39 Non-Stocked	Mfr. Part No. 3415 Mouser Part No 836-3415	Heyco	Conduit Fittings & Accessories TP-PG36 GRAY PG THRD PLUGS Learn More about Heyco npt pg threaded plugs	Datasheet	Non-Stocked	$5.39 $4.59 $4.28 $4.23 View $4.06 $3.87 $3.77 $3.62 $3.47	Min.: 1 Mult.: 1		Hole Plug		Polystyrene (PS)	Gray
Conduit Fittings & Accessories TP-PG48 GRAY PG THRD PLUGS 3417 Heyco 1: $5.98 Non-Stocked	Mfr. Part No. 3417 Mouser Part No 836-3417	Heyco	Conduit Fittings & Accessories TP-PG48 GRAY PG THRD PLUGS Learn More about Heyco npt pg threaded plugs	Datasheet	Non-Stocked	$5.98 $5.08 $4.70 $4.59 View $4.39 $4.23 $4.12 $3.95 $3.77	Min.: 1 Mult.: 1		Hole Plug		Polystyrene (PS)	Gray

Nylon Liquid Tight Threaded Plugs

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Nylon Liquid Tight Threaded Plugs

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