ASTM A320 Pipe Plugs | McMaster-Carr

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Maximum Steam Pressure @ Temperature

100 psi @ 350° F

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Medium Pressure

REACH

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About Pipe and Fittings

Measure your pipe and fittings to identify their pipe size, thread size, schedule, and thread type. Then, find compatible components.

Miniature Medium-Pressure Stainless Steel Threaded Pipe Fittings

When space is limited, choose these compact fittings. Though small in size, they’re strong enough to handle medium-pressure applications. Fittings are made of stainless steel for excellent corrosion resistance.

External-Hex-Drive Plugs

Image of Product. Front orientation. Pipe and Fittings. Miniature Medium-Pressure Stainless Steel Threaded Pipe Fittings, External-Hex-Drive Plugs, Male, Threaded Fitting Connection, Hex Body.

Threaded Fitting

Connection, Male,

Hex Body

303 Stainless Steel—Fittings have very good corrosion resistance.

316 Stainless Steel—Fittings are the most corrosion resistant. They stand up to wet environments, just like 304 stainless steel fittings, but unlike 304 stainless steel, they will not corrode from salt water, chlorine solutions, and chemicals.

						303 Stainless Steel		316 Stainless Steel
	Pipe Size	Construction	Body Shape	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.		Each		Each
NPT Male



		1/16	Hollow	Hex	500 psi @ 72° F	100 psi @ 350° F	2684K331	00000	8767N113	000000


		BSPT Male



				1/16	Solid	Hex	500 psi @ 72° F	100 psi @ 350° F	2684K339	0000	8767N114	00000


				1/8	Solid	Hex	500 psi @ 72° F	100 psi @ 350° F	2684K341	00000	8767N115	00000
				1/4	Solid	Hex	500 psi @ 72° F	100 psi @ 350° F	2684K342	00000	8767N116	00000

External-Hex-Drive Plugs with Gasket

Male, Threaded

Fitting

Connection, Hex

Body

303 Stainless Steel—Fittings have very good corrosion resistance.

Fluoroelastomer—These gaskets resist a wide range of chemicals, including benzene, butyl alcohol, and ethylene glycol.

					303 Stainless Steel				316 Stainless Steel
	Pipe Size	Construction	Body Shape	Gasket Material	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.		Each	Max. Pressure @ Temp.	Max. Steam Pressure @ Temp.		Each
BSPP Male



		1/16	Solid	Hex	Fluoroelastomer	500 psi @ 72° F	100 psi @ 350° F	2684K301	000000	500 psi @ 72° F	100 psi @ 350° F	8767N109	000000


		1/8	Solid	Hex	Fluoroelastomer	500 psi @ 72° F	100 psi @ 350° F	2684K302	00000	500 psi @ 72° F	100 psi @ 350° F	8767N111	00000
		1/4	Hollow	Hex	Fluoroelastomer	—	—	———	0	500 psi @ 72° F	100 psi @ 350° F	8767N122	00000
		1/4	Solid	Hex	Fluoroelastomer	500 psi @ 72° F	100 psi @ 350° F	2684K303	00000	—	—	———	0