Brass Drain Plugs | McMaster-Carr

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	Body Material Body Material

Brass

	Material Material

Brass

	Inlet Pipe Size Inlet Pipe Size

	Handle Style Handle Style


T-Handle	Wing Nut

Knob	Thumb Screw

	For Use With For Use With

	Outlet Connection Type Outlet Connection Type

	Drain

	For Pipe Size For Pipe Size

	Maximum Pressure Maximum Pressure

	Pipe Size Pipe Size

1/4

1/2

	Thread Type Thread Type

NPT

	Valve Operation Valve Operation

Handle

Cable Pull

	Seal Type Seal Type

Internal

External

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	System of Measurement System of Measurement

Inch

	Maximum Temperature Maximum Temperature

Less than 150° F

250° to 399° F

400° F or greater

	Minimum Temperature Minimum Temperature

	Height Height

	Drive Style Drive Style

Hex

	Expansion Plug Type Expansion Plug Type

	Inflatable

	Fitting Material Fitting Material

Brass

	Connection Style Connection Style

	Threaded

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

RoHS Compliant with
Exemptions

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

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68 Products

About Noise, Filtration, and Flow Ratings

Penetrate tight pipe junctures with the most flexible expansion plugs we offer. To inflate with air, use a hand pump (sold separately). Whether you fill with air or water, a pressure relief valve will prevent over expanding. Maximum air back pressure is the amount of pressure a plug can withstand without moving. Maximum water back pressure refers to the pressure resulting from the height of the water above the plug.

For Pipe		Deflated		Max. Back Pressure			Water Inlet				Material
Size	ID	Dia.	Ht.	Air, psi	Water, ft. of head	Required Inflation Pressure, psi	Thread Type	Hose Size	Gender	Temp. Range, °F	Seal	Fitting		Each
1 1/2 to 2	1.50"-2.00"	1 3/16"	7 5/8"	13	30	50	GHT	3/4	Female	35° to 95°	Natural Rubber	Brass	0000000	000000
3 to 4	2.75"-4.25"	2 11/16"	9"	13	30	50	GHT	3/4	Female	35° to 95°	Natural Rubber	Brass	0000000	00000
4 to 6	3.75"-6.25"	3 1/2"	11"	13	30	30	GHT	3/4	Female	35° to 95°	Natural Rubber	Brass	0000000	00000
5 to 8	4.75"-8.25"	4 1/2"	14 1/2"	13	30	35	GHT	3/4	Female	35° to 95°	Natural Rubber	Brass	0000000	000000
10 to 12	9.75"-12.25"	6 7/8"	20"	11	25	30	GHT	3/4	Female	35° to 95°	Natural Rubber	Brass	0000000	000000
14 to 16	13.75"-16.25"	8 1/4"	22"	11	25	15	GHT	3/4	Female	35° to 95°	Natural Rubber	Brass	0000000	000000

Air- and Water-Inflatable Plugs for Y-Joints

These extra-long plugs allow you to seal off two pipes at the same time. They have two separate inflation chambers to release back pressure gradually and prevent splash back as water clears the drain line. To inflate with air, use a hand pump (sold separately). Whether you fill with air or water, a pressure relief valve will prevent over expanding. Maximum air back pressure is the amount of pressure a plug can withstand without moving. Maximum water back pressure refers to the pressure resulting from the height of the water above the plug.

For Pipe		Deflated		Max. Back Pressure			Water Inlet				Material
Size	ID	Dia.	Ht.	Air, psi	Water, ft. of head	Required Inflation Pressure, psi	Thread Type	Hose Size	Gender	Temp. Range, °F	Seal	Fitting	Includes		Each
2 to 3	2.00"-3.10"	1 3/4"	19 1/2"	13	30	60	GHT	3/4	Female	35° to 95°	Natural Rubber	Brass	4-ft. Lg. Air Hose	0000000	000000
3 to 4	2.75"-4.25"	2 1/2"	23 1/2"	13	30	60	GHT	3/4	Female	35° to 95°	Natural Rubber	Brass	4-ft. Lg. Air Hose	0000000	000000
4 to 6	4.00"-6.25"	2 5/8"	30"	13	30	50	GHT	3/4	Female	35° to 95°	Natural Rubber	Brass	4-ft. Lg. Air Hose	0000000	000000

Lavatory Sink Drains

Style C offers additional clearance under the sink.

Style D opens and closes with the included rod, strap, and lever.

Drains with Rubber Stopper and Pull Chain

			Tailpiece
Style	For Sink Drain Opening Dia.	Top Dia.	OD	Lg.	Features		Each
Chrome-Plated Brass
A	1 1/4"-1 3/8"	2"	1 1/4"	5"	Overflow Cutout	000000	000000
A	1 1/4"-1 3/8"	2"	1 1/4"	8"	Overflow Cutout	000000	00000
A	1 1/4"-1 3/8"	2"	1 1/4"	12"	Overflow Cutout	000000	00000

Drains with Strainer

			Tailpiece
Style	For Sink Drain Opening Dia.	Top Dia.	OD	Lg.	Features		Each
Chrome-Plated Brass
B	1 5/8"	2 1/4"	1 1/4"	6"	Overflow Cutout	0000000	000000
C	1 5/8"	2 1/4"	1 1/4"	8 3/4"	Overflow Cutout	0000000	00000

Drains with Chrome-Plated Brass Stopper, Lever, Rod, and Strap

Drains
			Tailpiece		Strap						Replacement Straps
Style	For Sink Drain Opening Dia.	Top Dia.	OD	Lg.	Lg.	Wd.	Material	Features		Each		Each
Chrome-Plated Brass
D	1 1/4"-1 1/2"	2 1/8"	1 1/4"	6"	8 3/8"	1/2"	Zinc	Overflow Cutout	0000000	000000	0000000	00000

Lever-Control Sink Drains

Avoid reaching into your sink—plug and drain your sink by moving a lever beneath the bowl. These drains are often used in food service applications.

		Drain
For Sink Drain Opening Dia.	Top Dia.	Ht.	Pipe Size	Thread Type	Gender	Strainer Material	Flange Material		Each
Chrome Plated Brass
3"	4 3/16"	4 1/2"	1 1/2	NPT	Male	Stainless Steel	Stainless Steel	0000000	000000
3"	4 3/16"	4 1/2"	2	NPT	Male	Stainless Steel	Stainless Steel	0000000	00000
Nickel-Plated Brass
3 1/2"	4 1/2"	4 1/2"	1 1/2	NPS	Male	Stainless Steel	Stainless Steel	0000000	000000
3 1/2"	4 1/2"	4 1/2"	2	NPS	Male	Stainless Steel	Stainless Steel	0000000	000000

Lever-Control Sink Drains with Overflow Outlet Pipe

Avoid reaching into your sink—plug and drain your sink by moving a lever beneath the bowl. These drains are often used in food service applications. Use a hacksaw to trim the overflow outlet pipe to size.

		Drain
For Sink Drain Opening Dia.	Top Dia.	Ht.	Pipe Size	Thread Type	Gender	Strainer Material	Flange Material		Each
Nickel-Plated Brass
3"	4"	4 1/2"	1 1/2	NPS	Male	Stainless Steel	Stainless Steel	0000000	0000000
3"	4"	4 1/2"	2	NPS	Male	Stainless Steel	Stainless Steel	0000000	000000
3 1/2"	4 1/2"	4 1/2"	1 1/2	NPS	Male	Stainless Steel	Stainless Steel	0000000	000000
3 1/2"	4 1/2"	4 1/2"	2	NPS	Male	Stainless Steel	Stainless Steel	0000000	000000

Dual-Connection Sink Drain Outlets

Brass Center Outlet

Brass End Outlet

Connect two drains to a single outlet.

For technical drawings and 3-D models, click on a part number.

Center Outlet
OD	Includes	Lg.		Each
Chrome-Plated Brass
1 1/2"	Slip-Joint Nuts and Washers	15 1/2"	000000	0000000
1 1/2"	Slip-Joint Nuts and Washers	21"	000000	000000
End Outlet
Chrome-Plated Brass
1 1/2"	Slip-Joint Nuts and Washers	16"	0000000	00000
1 1/2"	Slip-Joint Nuts and Washers	21"	0000000	00000

Cleanout Plugs

Recessed

Raised

Close off your drain cleanout pipe with these threaded plugs. Note: If you do not know your pipe size, measure the OD of your existing cleanout plug or the ID of your cleanout fitting and match to the value listed.

			Brass
			Recessed		Raised
For Pipe Size	Thread Type	Cleanout Plug OD/Fitting ID		Each		Each
__	NPT	4 31/32"	0000000	000000	0000000	000000
__	NPT	6"	0000000	00000	0000000	00000
1 1/2	NPT	1 7/8"	0000000	00000	0000000	00000
2	NPT	2 3/8"	0000000	00000	0000000	00000
2 1/2	NPT	2 27/32"	000000	00	0000000	00000
3	NPT	3 15/32"	0000000	00000	0000000	00000
3 1/2	NPT	3 31/32"	0000000	00000	0000000	00000
4	NPT	4 15/32"	0000000	00000	0000000	00000
5	NPT	5 17/32"	0000000	00000	0000000	00000
6	NPT	6 19/32"	0000000	000000	0000000	000000

Driver for Recessed Plugs

000000

Each

000000

Drainage Valves

Thumb-Screw Handle

Wing-Nut Handle

Removable T-Handle

Flat Handle

Cable Pull

Also known as stop cocks, install these valves on your tank for easy draining.

Valves with external seal are for higher flow applications than valves with an internal seal.

Valves with removable handle can be disassembled for cleaning.

Inlet			Outlet
Pipe Size	Thread Type	Gender	Connection Type	For Use With	Cable Lg., ft.	Features	Max. Pressure	Temp. Range, °F	Ht.	Wd.	Body Material		Each
Thumb-Screw Handle
External Seal
1/4	NPT	Male	Unthreaded Hole	Air	__	__	250 psi @ 250° F	-40° to 250°	1 1/8"	__	Brass	0000000	00000
Wing-Nut Handle
External Seal
1/8	NPT	Male	Unthreaded Hole	Water, Oil	__	__	150 psi @ 250° F	-65° to 250°	15/16"	__	Brass	0000000	0000
1/4	NPT	Male	Unthreaded Hole	Water, Oil	__	__	150 psi @ 250° F	-40° to 350°	1"	__	Brass	0000000	0000
3/8	NPT	Male	Unthreaded Hole	Water, Oil	__	__	150 psi @ 250° F	-65° to 250°	1 1/4"	__	Brass	0000000	0000
1/2	NPT	Male	Unthreaded Hole	Water, Oil	__	__	150 psi @ 250° F	-65° to 250°	1 1/2"	__	Brass	0000000	00000
Internal Seal
1/8	NPT	Male	Unthreaded Hole	Water, Oil	__	__	150 psi @ 250° F	-65° to 250°	1 5/16"	__	Brass	0000000	00000
1/4	NPT	Male	Unthreaded Hole	Water, Oil	__	__	150 psi @ 250° F	-65° to 250°	15/16"	__	Brass	0000000	0000
3/8	NPT	Male	Unthreaded Hole	Water, Oil	__	__	150 psi @ 250° F	-65° to 250°	1 1/4"	__	Brass	0000000	0000
T-Handle
Internal Seal
1/8	NPT	Male	Unthreaded Hole	Water, Oil, Inert Gas	__	Removable Handle	150 psi @ 250° F	-65° to 250°	1 9/16"	__	Brass	000000	00000
1/4	NPT	Male	Unthreaded Hole	Water, Oil	__	__	150 psi @ 250° F	-65° to 250°	1 3/4"	1 7/16"	Brass	0000000	00000
1/4	NPT	Male	Unthreaded Hole	Water, Oil, Inert Gas	__	Removable Handle	150 psi @ 250° F	-65° to 250°	1 11/16"	__	Brass	000000	00000
3/8	NPT	Male	Unthreaded Hole	Water, Oil, Inert Gas	__	Removable Handle	150 psi @ 250° F	-65° to 250°	1 13/16"	__	Brass	000000	00000
Cable Pull
Internal Seal
1/4	NPT	Male	Unthreaded Hole	Air	1 1/2	__	250 psi @ 250° F	-40° to 250°	1 1/4"	__	Brass	00000000	0000
1/4	NPT	Male	Unthreaded Hole	Air	3	__	250 psi @ 250° F	-40° to 250°	1 1/4"	__	Brass	00000000	0000
1/4	NPT	Male	Unthreaded Hole	Air	4	__	150 psi @ 250° F	-65° to 250°	1 7/8"	__	Brass	00000000	0000
1/4	NPT	Male	Unthreaded Hole	Air	5	__	250 psi @ 250° F	-40° to 250°	1 1/4"	__	Brass	00000000	0000

Easy-Grip Drainage Valves

The large knob makes these drainage valves easy to grip. They're also known as stop cocks.

For technical drawings and 3-D models, click on a part number.

Inlet			Outlet
Pipe Size	Thread Type	Gender	Connection Type	Gender	For Use With	Max. Pressure	Temp. Range, °F	Port-to-Port Lg.	Body Material		Each
1/2	NPT	Male	Unthreaded Hole	Male	Water, Oil	250 psi @ 400° F	32° to 400°	1"	Brass	0000000	000000
3/4	NPT	Male	Unthreaded Hole	Male	Water, Oil	250 psi @ 400° F	32° to 400°	1"	Brass	000000	00000

Self-Draining Breather Vents

Minimize moisture buildup in enclosures. Also known as drain plugs, these breather vents have a small outlet that allows condensation to drain. They have a silicone O-ring above the threads for a tight seal. Install them at the lowest point of the enclosure. Breather vents meet IP66 for protection in washdown environments. Use them to prevent excess vacuum and pressure in cylinders, gear boxes, and tanks and to block debris from entering equipment.

Brass breather vents have good corrosion resistance.

For technical drawings and 3-D models, click on a part number.

NPT Male
Pipe Size	Max. Temp., °F	Ht.	Dia.	For Use With	Environmental Rating		Each
Brass Body and Fitting
1/2	320°	15/16"	1"	Air	IEC Zone 1 Groups IIC, IIB, IIA, IEC Zone 21 Groups IIIC, IIIB, IIIA, IP66, NEMA 4X	0000000	000000
1/4	320°	15/16"	11/16"	Air	IP66, NEMA 4X	0000000	00000