Metric Stones | McMaster-Carr

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	Connection Style Connection Style

Threaded

Tube Stem

Barbed

	Thread Type Thread Type

Metric

	System of Measurement System of Measurement	Show

Metric

	System of Measurement System of Measurement	Hide

Inch

Metric

	Thread Size Thread Size

	Body Material Body Material

	For Use With For Use With

Air

Inert Gas

	Connection Type Connection Type


Pipe	Tube

	For Tube ID For Tube ID

	For Reducing For Reducing

Noise

Particles

	Gender Gender

Male

	Fitting Material Fitting Material

	Diameter Diameter

	Maximum Flow Rate Maximum Flow Rate

	Height Height

	Maximum Temperature Maximum Temperature

	Removes Particle Size Down To Removes Particle Size Down To

	Minimum Noise Reduction Rating Minimum Noise Reduction Rating

	Maximum Pressure Maximum Pressure

145 psi

150 psi

175 psi

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

DFARS Specialty Metals
COTS-Exempt

	Drive Style Drive Style

	External Hex

	Filter Material Filter Material

Polypropylene Plastic

PVC Plastic

	Fitting Finish Fitting Finish

Nickel Plated

	Hex Size Hex Size

5/16"

3/8"

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28 Products

About Noise, Filtration, and Flow Ratings

Made entirely of stainless steel, these mufflers stand up to harsh, corrosive environments. Use them to reduce noise from equipment and to filter exhaust fumes.

316 stainless steel offers excellent corrosion resistance.

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

Metric Male 316 Stainless Steel Fitting
	Thread Size	Max. Flow Rate	Max. Pressure, psi	Max. Temp., °F	Ht.	Dia.	For Use With	Removes Particle Size Down To, microns	Noise Reduction Rating, dB		Each
B	M3	3 scfm @ 100 psi	150	1000°	3/8"	1/4"	Air, Inert Gas	100	13-29	0000000	000000
B	M5	6 scfm @ 100 psi	150	1000°	11/16"	5/16"	Air, Inert Gas	100	13-29	0000000	00000

Mufflers

Use these mufflers with air-powered tools, valves, and cylinders to reduce noise and filter exhaust fumes.

Style B is knurled for easy gripping.

Styles P, Q, and R have a tube stem that slides into tube fittings and collets to decrease noise from manifolds.

Style S has a barbed fitting that slides into soft tubing, such as PVC, latex rubber, and silicone.

Brass, bronze, and copper mufflers offer good corrosion resistance.

Nylon mufflers resist corrosion and will not deteriorate when exposed to oil.

Polybutylene mufflers offer flame resistance. They’re good for use in welding applications and other areas where sparks may occur.

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

Mufflers with Pipe Connection

Metric Male Copper Fitting—Copper Body
Style	Thread Size	Max. Flow Rate	Max. Pressure, psi	Max. Temp., °F	Ht.	Dia.	For Use With	Removes Particle Size Down To, microns	Noise Reduction Rating, dB		Each
B	M3	3 scfm @ 100 psi	145	300°	3/8"	1/4"	Air	100	13-21	0000000	00000
B	M5	10 scfm @ 100 psi	145	300°	5/8"	5/16"	Air	100	13-21	0000000	0000
Metric Male Brass Fitting—Brass Body
A	M5	17 scfm @ 100 psi	145	175°	11/16"	__	Air, Inert Gas	50	10-20	0000000	0000
F	M5	5 scfm @ 100 psi	175	175°	3/8"	__	Air, Inert Gas	100	10-20	0000000	0000
Metric Male Nylon Plastic Fitting—Nylon Plastic Body
G	M5	19 scfm @ 100 psi	145	212°	15/16"	1/4"	Air, Inert Gas	75	10-20	0000000	0000

Mufflers with Tube Connection

Tube Stem Polybutylene Plastic Fitting—Polybutylene Plastic Body
Style	For Tube ID	Max. Flow Rate	Max. Pressure, psi	Max. Temp., °F	Ht.	Dia.	For Use With	Removes Particle Size Down To, microns	Noise Reduction Rating, dB		Each
P	6mm	27 scfm @ 100 psi	145	140°	2 1/16"	5/8"	Air	Not Rated	17-20	0000000	00000
P	8mm	42 scfm @ 100 psi	145	140°	2 7/8"	7/8"	Air	Not Rated	17-20	0000000	00000
P	10mm	95 scfm @ 100 psi	145	140°	3 11/16"	1"	Air	Not Rated	17-20	0000000	00000
Tube Stem Nylon Plastic Fitting—Nylon Plastic Body
Q	4mm	13 scfm @ 100 psi	145	212°	1 1/4"	5/16"	Air, Inert Gas	75	10-20	0000000	0000
Q	6mm	24 scfm @ 100 psi	145	212°	1 13/16"	1/2"	Air, Inert Gas	75	10-20	0000000	0000
Q	8mm	45 scfm @ 100 psi	145	212°	1 11/16"	9/16"	Air, Inert Gas	75	10-20	0000000	0000
Q	10mm	87 scfm @ 100 psi	145	212°	2 1/4"	5/8"	Air, Inert Gas	75	10-20	0000000	0000
Q	12mm	140 scfm @ 100 psi	145	212°	3 1/4"	3/4"	Air, Inert Gas	75	10-20	0000000	0000
Tube Stem Nickel-Plated Brass Fitting—Bronze Body
R	4mm	Not Rated	175	300°	1 5/8"	1/2"	Air	Not Rated	20	0000000	00000
R	6mm	Not Rated	175	300°	1 7/8"	9/16"	Air	Not Rated	20	0000000	00000
R	8mm	Not Rated	175	300°	1 15/16"	9/16"	Air	Not Rated	20	0000000	00000
R	10mm	Not Rated	175	300°	2 11/16"	3/4"	Air	Not Rated	20	0000000	00000
R	12mm	Not Rated	175	300°	2 11/16"	3/4"	Air	Not Rated	20	0000000	00000
Barbed Nickel-Plated Brass Fitting—Brass Body
S	3.5mm	71 scfm @ 100 psi	145	175°	1"	5/16"	Air, Inert Gas	50	10-20	0000000	0000
S	5mm	116 scfm @ 100 psi	145	175°	1 1/16"	5/16"	Air, Inert Gas	50	10-20	0000000	0000

Flow-Control Mufflers

Adjust the flow by turning the screw. Use these mufflers with air-powered tools and cylinders to reduce noise and filter exhaust fumes.

For mufflers with an external hex drive, twist the screw and then tighten the hex nut with a wrench to secure. These mufflers are more secure than those with a thumb screw.

Brass, bronze, and nylon mufflers offer good corrosion resistance.

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

Mufflers with External Hex Drive

Metric Nylon Plastic

Metric Male Nylon Plastic Fitting
Thread Size	Max. Flow Rate	Max. Pressure, psi	Max. Temp., °F	Ht.	For Use With	Removes Particle Size Down To, microns	Noise Reduction Rating, dB	Features		Each
M5	19 scfm @ 100 psi	145	210°	5/8"	Air, Inert Gas	75	10-20	Adjustable Airflow	0000000	000000

High-Noise-Reducing Mufflers

Install these mufflers in air-powered drills and other loud equipment. They filter exhaust fumes and reduce noise by 30-35 dB, a reduction that's equivalent to putting in earplugs.

Mufflers with pipe connections thread into NPT or metric threaded exhaust ports.

Mufflers with tube stem connections slide into tube fittings, such as push-to-connect tube fittings.

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

Mufflers with Pipe Connection

Plastic Body

Metric Male Polypropylene Plastic Fitting
Thread Size	Max. Flow Rate	Max. Pressure, psi	Max. Temp., °F	Ht.	Dia.	For Use With	Body Material	Noise Reduction Rating, dB		Each
M5	14 scfm @ 72 psi	145	140°	9/16"	1/4"	Air	Polypropylene Plastic	30-35	0000000	00000

Mufflers with Tube Connection

Plastic Body

Tube Stem Polypropylene Plastic Fitting
For Tube ID	Max. Flow Rate	Max. Pressure, psi	Max. Temp., °F	Ht.	Dia.	For Use With	Body Material	Noise Reduction Rating, dB		Each
6mm	28 scfm @ 72 psi	145	140°	1 7/16"	7/16"	Air	Polypropylene Plastic	30-35	0000000	00000
8mm	106 scfm @ 72 psi	145	140°	1 3/4"	1/2"	Air	Polypropylene Plastic	30-35	0000000	0000
10mm	177 scfm @ 72 psi	145	140°	2 1/4"	5/8"	Air	Polypropylene Plastic	30-35	0000000	0000
12mm	177 scfm @ 72 psi	145	140°	2 13/16"	5/8"	Air	Polypropylene Plastic	30-35	0000000	0000

About Noise, Filtration, and Flow Ratings

Corrosion-Resistant Mufflers

Mufflers

Flow-Control Mufflers

High-Noise-Reducing Mufflers