1/16 Nipples | McMaster-Carr

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1
1 1/4
1 1/2
2
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	Thread Type Thread Type

	Type Type


Pipe	Adapter

Connector	Reducer

Reducing Adapter

	Material Material

	Shape Shape

	Straight

	System of Measurement System of Measurement

Inch

Metric

	Length Length

	Connection Style Connection Style

Threaded

Barbed

	Threading Threading

	Threaded on Both Ends
	Fully Threaded

	For Use With For Use With

	Gender Gender

Male

	Connection Type Connection Type


Pipe	Tube

	For Tube ID For Tube ID

	Maximum Pressure Maximum Pressure

	Thread Size Thread Size

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

RoHS Compliant

RoHS Compliant with
Exemptions

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

DFARS Specialty Metals
COTS-Exempt

	OD OD

5/16"

	ID ID

0.18"

	Body Shape Body Shape

	Hex

	Fabrication Fabrication

Machined

Forged

	Maximum Steam Pressure Maximum Steam Pressure

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

REACH Compliant

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72 Products

How to Identify and Measure Fittings

Pipe size is an industry designation, not the actual size. View information about how to measure threaded and unthreaded pipe and pipe fittings.

Precision Extreme-Pressure Stainless Steel Threaded Pipe Fittings

Made to tighter tolerances than other stainless steel pipe fittings, these are also known as instrumentation fittings. The male threads are rolled for extra strength in extreme-pressure applications. Fittings are commonly used to connect equipment in gas and hydraulic fluid lines. They are 316 stainless steel for excellent corrosion resistance.

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

Straight Connectors, Male

For Use With: Hydraulic Fluid, Liquid Nitrogen, Natural Gas, Steam, Water
Specifications Met:
3/4 Pipe Size: ASME B1.20.1, ASME B31.3, ASTM A276, ASTM A479
All other sizes: ASME B1.20.1, ASME B31.1, ASME B31.3

			316 Stainless Steel
Pipe Size	Max. Pressure	Max. Steam Pressure		Each
NPT Male
1/16	10,000 psi @ 72° F	10,000 psi @ 300° F	000000000	000000

Straight Connectors with Hex, Male

For Use With: Hydraulic Fluid, Liquid Nitrogen, Natural Gas, Steam, Water
Specifications Met: ASME B1.20.1, ASME B31.1, ASME B31.3

				316 Stainless Steel
Pipe Size	Lg.	Max. Pressure	Max. Steam Pressure		Each
NPT Male
1/16	1 1/16"	10,000 psi @ 72° F	10,000 psi @ 300° F	000000000	000000
1/16	2"	10,000 psi @ 72° F	10,000 psi @ 300° F	000000000	00000
1/16	2 1/2"	10,000 psi @ 72° F	10,000 psi @ 300° F	000000000	00000
1/16	3"	10,000 psi @ 72° F	10,000 psi @ 300° F	000000000	00000
1/16	4"	10,000 psi @ 72° F	10,000 psi @ 300° F	000000000	00000

Straight Reducers, Male

For Use With: Hydraulic Fluid, Liquid Nitrogen, Natural Gas, Steam, Water
Specifications Met: ASME B1.20.1, ASME B31.1, ASME B31.3

Pipe Size		Dash Size			316 Stainless Steel
(A)	(B)	(A)	Max. Pressure	Max. Steam Pressure		Each
NPT Male
1/8	1/16	02	9,100 psi @ 72° F	9,100 psi @ 300° F	000000000	000000

Miniature Medium-Pressure Stainless Steel Threaded Pipe Fittings

When space is at a premium choose these compact fittings. Though small in size, they have the strength to handle medium-pressure applications. Fittings are stainless steel for very good corrosion resistance.

Metric, BSPP, and UN/UNF (SAE) male threads have a gasket to protect against leaks. Made from fluoroelastomer, these gaskets resist chemicals, including benzene, butyl alcohol, and ethylene glycol. UN/UNF (SAE) threads are also known as O-ring boss threads.

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

Straight Adapters, Male

BSPP, Metric, and
UN/UNF (SAE) Male
Threads with Gasket

For Use With: Air, Natural Gas, Oil, Steam, Water
Specifications Met: ASTM A314, ASTM A320, ASTM A582

303 Stainless Steel
Pipe Size	Thread Size	Max. Pressure	Max. Steam Pressure	Gasket Material		Each
NPT Male × UN/UNF (SAE) Male
1/16	10-32	500 psi @ 72° F	100 psi @ 350° F	Fluoroelastomer Rubber	00000000	000000
1/16	1/4"-28	500 psi @ 72° F	100 psi @ 350° F	Fluoroelastomer Rubber	00000000	00000
1/16	7/16"-20	500 psi @ 72° F	100 psi @ 350° F	Fluoroelastomer Rubber	00000000	00000
1/16	9/16"-18	500 psi @ 72° F	100 psi @ 350° F	Fluoroelastomer Rubber	00000000	00000
NPT Male × Metric Male
1/16	M3 × 0.5 mm	500 psi @ 72° F	100 psi @ 350° F	Fluoroelastomer Rubber	00000000	00000
1/16	M5 × 0.8 mm	500 psi @ 72° F	100 psi @ 350° F	Fluoroelastomer Rubber	00000000	00000
1/16	M6 × 1 mm	500 psi @ 72° F	100 psi @ 350° F	Fluoroelastomer Rubber	00000000	00000
1/16	M8 × 1 mm	500 psi @ 72° F	100 psi @ 350° F	Fluoroelastomer Rubber	00000000	00000
1/16	M10 × 1.25 mm	500 psi @ 72° F	100 psi @ 350° F	Fluoroelastomer Rubber	00000000	00000
NPT Male × BSPP Male
1/16	__	500 psi @ 72° F	100 psi @ 350° F	Fluoroelastomer Rubber	00000000	00000
316 Stainless Steel
NPT Male × BSPP Male
1/16	__	500 psi @ 72° F	100 psi @ 350° F	Fluoroelastomer Rubber	00000000	00000

Straight Reducing Adapters

Front

BSPP, Metric, and
UN/UNF (SAE) Male
Threads with Gasket

For Use With: Air, Natural Gas, Oil, Steam, Water
Specifications Met: ASTM A314, ASTM A320, ASTM A582

Pipe Size							303 Stainless Steel
(A)	(B)	Max. Pressure	Max. Steam Pressure	Gasket Material	Lg.	Hex Wd.		Each
BSPP Male × NPT Male
1/8	1/16	500 psi @ 72° F	100 psi @ 350° F	Fluoroelastomer Rubber	59/64"	9/16"	00000000	000000

Straight Reducers

For Use With: Air, Natural Gas, Oil, Steam, Water
Specifications Met: ASTM A314, ASTM A320, ASTM A582

Pipe Size				303 Stainless Steel
(A)	(B)	Max. Pressure	Max. Steam Pressure		Each
NPT Male
1/8	1/16	500 psi @ 72° F	100 psi @ 350° F	00000000	000000
1/4	1/16	500 psi @ 72° F	100 psi @ 350° F	00000000	00000

High-Pressure Brass Threaded Pipe Fittings

These fittings have the strength to handle high-pressure applications. They are brass for good corrosion resistance.

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

Straight Reducers, Male

For Use With: Air, Water, Natural Gas, Oil
Specifications Met: See table

Pipe Size
(A)	(B)	Max. Pressure		Each
NPT Male
1/8	1/16	1,000 psi @ 72° F	0000000	00000

High-Pressure Brass Threaded Pipe Nipples and Pipe

Use this extra-strong pipe in a high-pressure line. It is brass for good corrosion resistance.

Fully threaded pipe is also known as a close nipple; it is threaded on each end to the center.

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

Fully Threaded

For Use With: Air, Natural Gas, Oil, Water

Pipe Size	Lg.	Thread Type	Max. Pressure		Each
1/16	5/8"	NPT	1,000 psi @ 72° F	000000000	00000

Threaded on Both Ends

For Use With: Air, Natural Gas, Oil, Water

1/16 Pipe Size
Lg.	Thread Type	Max. Pressure		Each
1 1/2"	NPT	1,000 psi @ 72° F	000000000	00000
2"	NPT	1,000 psi @ 72° F	000000000	0000

High-Pressure Brass Threaded Pipe Fittings with Sealant

Not only do these fittings have the strength to handle high-pressure applications, the male threads have a sealant applied for extra protection against leaks. Fittings are brass for good corrosion resistance.

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

Straight Reducers

For Use With: Air, Natural Gas, Oil, Water

Pipe Size
(A)	(B)	Max. Pressure		Each
NPT Male
1/8	1/16	1,000 psi @ 72° F	00000000	00000

High-Pressure Brass Threaded Pipe Nipples and Pipe with Sealant

Not only does this pipe have the strength to handle high-pressure applications, the threads have a sealant applied for extra protection against leaks. Pipe is brass for good corrosion resistance.

Fully threaded pipe is also known as a close nipple; it is threaded on each end to the center.

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

Fully Threaded

For Use With: Air, Natural Gas, Oil, Water

Pipe Size	Lg.	Thread Type	Max. Pressure		Each
1/16	5/8"	NPT	1,000 psi @ 72° F	000000000	00000

Threaded on Both Ends

For Use With: Air, Natural Gas, Oil, Water

Pipe Size	Lg.	Thread Type	Max. Pressure		Each
1/16	1 1/2"	NPT	1,000 psi @ 72° F	000000000	00000
1/16	2"	NPT	1,000 psi @ 72° F	000000000	0000

Precision Extreme-Pressure Brass Threaded Pipe Fittings

Also known as instrumentation fittings, these have the most precise threads and the tightest tolerances of all the brass pipe fittings we offer. The male threads are rolled for excellent strength in extreme-pressure applications. Fittings are brass for good corrosion resistance.

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

Straight Reducers, Male

For Use With: Air, Argon, Natural Gas, Nitrogen Gas, Oil, Oxygen, Steam, Water
Specifications Met: See Table

Pipe Size
(A)	(B)	Max. Pressure	Max. Steam Pressure	Specifications Met		Each
NPT Male
1/8	1/16	5,000 psi @ 72° F	1,500 psi @ 300° F	ASME B1.20.1, ASME B31.3	00000000	00000

Miniature Medium-Pressure Aluminum Threaded Pipe Fittings

Their small size makes these miniature fittings a good choice for cramped, confined spaces. They are designed to handle medium-pressure applications. Fittings are aluminum, which is lightweight with good corrosion resistance.

Metric and UN/UNF (SAE) male threads have a gasket to protect against leaks. UN/UNF (SAE) threads are also known as O-ring boss threads.

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

Straight Adapters, Male

Metric and
UN/UNF (SAE) Male
Threads with Gasket

For Use With: Air, Oil, Water
Specifications Met: ASME B1.20.1, ASTM B241

NPT Male × UN/UNF (SAE) Male
Pipe Size	Thread Size	Max. Pressure		Each
1/16	10-32	150 psi @ 72° F	00000000	00000
1/16	1/4"-28	150 psi @ 72° F	00000000	0000
1/16	7/16"-20	150 psi @ 72° F	00000000	00000
1/16	9/16"-18	150 psi @ 72° F	00000000	00000
NPT Male × Metric Male
1/16	M3 × 0.5 mm	150 psi @ 72° F	00000000	0000
1/16	M5 × 0.8 mm	150 psi @ 72° F	00000000	0000
1/16	M6 × 1 mm	150 psi @ 72° F	00000000	0000
1/16	M8 × 1 mm	150 psi @ 72° F	00000000	0000
1/16	M10 × 1.25 mm	150 psi @ 72° F	00000000	00000

Straight Reducers

For Use With: Air, Oil, Water
Specifications Met: ASME B1.20.1, ASTM B241

Pipe Size
(A)	(B)	Max. Pressure		Each
NPT Male
1/8	1/16	150 psi @ 72° F	00000000	00000
1/4	1/16	150 psi @ 72° F	00000000	00000

Brass Low-Pressure Barbed Tube Fittings for Air and Water

A brass body provides protection against corrosive environments. Fittings have barbs that grip onto tubing.

Fittings with a single barb provide a smooth clamping surface for extra-tight connections that minimize leaks.

NPTF (Dryseal) fittings are compatible with NPT threads.

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

Straight Adapters, Tube × Male Threaded Pipe

Temperature Range: NPT, UN/UNF (SAE) Threads: 32° to 180° F
NPTF Threads: -65° to 75° F
BSPT Threads: -40° to 160° F
Tubing: NPT, UN/UNF (SAE) Threads: Use with firm (Durometer 85A) polyurethane rubber
NPTF Threads: Use with firm (Durometer 95A) polyurethane rubber
BSPT Threads: Use with firm (Durometer 85A) nylon plastic

NPT Threads
For Tube ID	Pipe Size	Number of Barbs	Material	Max. Pressure	Lg.	Pkg. Qty.		Pkg.
1/8"	1/16	Single	Brass	150 psi @ 72° F	11/16"	5	0000000	000000
NPTF Threads
0.17"	1/16	Multiple	Brass	100 psi @ 72° F	15/16"	1	000000000	0000

Nickel-Plated Brass Low-Pressure Barbed Tube Fittings for Air and Water

The nickel plating on these brass fittings provides extra protection against corrosive environments. The plating won’t peel or chip, so the fittings keep a bright, polished appearance. The barbs grip onto tubing, providing a secure hold with no clamp required.

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

Straight Adapters, Tube × Male Threaded Pipe

Temperature Range: -40° to 230° F,
except UN/UNF (SAE) Threads: -20° to 160° F
Tubing: Use with hard (Durometer 60D-90D) Buna-N rubber, EVA plastic, Nylon plastic, polyethylene plastic, polypropylene plastic, polyurethane rubber, PTFE plastic, PVC plastic, PVDF plastic, or silicone rubber,
except UN/UNF (SAE) Threads: Use with firm (Durometer 85A) polyurethane rubber

NPT Threads
For Tube ID	Pipe Size	Material	Max. Pressure		Each
2mm	1/16	Nickel-Plated Brass	120 psi @ 72° F	0000000	00000
4mm	1/16	Nickel-Plated Brass	120 psi @ 72° F	0000000	0000
6mm	1/16	Nickel-Plated Brass	120 psi @ 72° F	0000000	0000
8mm	1/16	Nickel-Plated Brass	120 psi @ 72° F	0000000	0000

Choose-a-Color Aluminum Low-Pressure Barbed Tube Fittings for Air and Water

For Use With: Air, Lubricated Air, Water
Temperature Range: -40° to 230° F
Tubing: Use with hard (Durometer 75A-60D) EVA plastic, polyethylene plastic, polyurethane rubber or PVDF plastic

Color-code fittings for easy identification. Fittings are aluminum, which is lightweight with good corrosion resistance. The barb grips onto tubing, providing a secure hold with no clamp required.

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

Straight Adapters, Tube × Male Threaded Pipe

NPT Threads
For Tube ID	Pipe Size	Material	Max. Pressure	Choose a Color		Each
1/16"	1/16	Anodized Aluminum	125 psi @ 72° F	Black, Blue, Red	00000000	00000
8mm	1/16	Anodized Aluminum	125 psi @ 72° F	Black, Blue, Red	00000000	0000

Aluminum Low-Pressure Barbed Tube Fittings for Air and Water

For Use With: Air, Lubricated Air, Water
Temperature Range: -40° to 230° F
Tubing: Use with hard (Durometer 75A-60D) EVA plastic, polyethylene plastic, polyurethane rubber or PVDF plastic

Made of aluminum, these fittings are lighter in weight than other metal barbed tube fittings and have good corrosion resistance. The barb grips onto tubing, providing a secure hold with no clamp required.

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

Straight Adapters, Tube × Male Threaded Pipe

NPT Threads
For Tube ID	Pipe Size	Material	Max. Pressure		Each
1/16"	1/16	Aluminum	125 psi @ 72° F	00000000	00000
6mm	1/16	Aluminum	125 psi @ 72° F	0000000	0000
8mm	1/16	Aluminum	125 psi @ 72° F	0000000	0000

Stainless Steel High-Pressure Barbed Tube Fittings for Air and Water

Temperature Range: See table
Tubing: Use with firm (Durometer 75A-95A) EVA plastic, polyethylene plastic, polypropylene plastic or PVC plastic

Fittings withstand pressures up to 250 psi. They are 303 stainless steel for very good corrosion resistance.

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

Straight Adapters, Tube × Male Threaded Pipe

NPT Threads
For Tube ID	Pipe Size	Material	Max. Pressure	Temp. Range, °F	Number of Barbs		Each
2mm	1/16	303 Stainless Steel	250 psi @ 72° F	-40° to 500° F	Single	00000000	000000
6mm	1/16	303 Stainless Steel	250 psi @ 72° F	-40° to 500° F	Single	00000000	00000
8mm	1/16	303 Stainless Steel	250 psi @ 72° F	-40° to 500° F	Single	00000000	00000

Tight-Seal Plastic Barbed Tube Fittings for Air and Water

Minimize leaks in your line—these fittings have a single barb that creates a smooth clamping surface for extra-tight connections. Fittings are nylon for excellent impact and abrasion resistance.

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

Straight Adapters, Tube × Male Threaded Pipe

Temperature Range: See table
Tubing: Use with firm (Durometer 75A-80A) polyurethane rubber or PVC plastic

NPT Threads
For Tube ID	Pipe Size	Material	Max. Pressure	Temp. Range, °F	Pkg. Qty.	Choose a Color		Pkg.
1/8"	1/16	Nylon Plastic	Not Rated	Not Rated	10	White	00000000	00000
3/16"	1/16	Nylon Plastic	Not Rated	Not Rated	10	Black, White	000000	0000

Tight-Seal Moisture-Resistant Plastic Barbed Tube Fittings for Air and Water

Temperature Range: -20° to 280° F
Tubing: Use with firm or soft (Durometer 50A-90A) polyurethane rubber or PVC plastic
Specifications Met: FDA Compliant 21 CFR 177.2470

Fittings have a single barb that creates a smooth clamping surface for extra-tight connections that minimize leaks. Made of acetal, they won’t absorb water and lose strength, even in high-humidity environments.

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

Straight Adapters, Tube × Male Threaded Pipe

NPT Threads
For Tube ID	Pipe Size	Material	Color	Clarity	Max. Pressure		Each
3/16"	1/16	Acetal Plastic	White	Semi-Clear	150 psi @ 72° F	00000000	00000
1/4"	1/16	Acetal Plastic	White	Semi-Clear	150 psi @ 72° F	00000000	0000

Easy-View Plastic Barbed Tube Fittings for Air and Water

Temperature Range: -210° to 270° F
Tubing: Use with firm or soft (Durometer 45A-90A) polyurethane rubber or PVC plastic

Monitor flow with these clear fittings. They have a single barb that creates a smooth clamping surface for extra-tight connections that minimize leaks. Fittings are polycarbonate for excellent impact resistance.

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

Straight Adapters, Tube × Male Threaded Pipe

NPT Threads
For Tube ID	Pipe Size	Material	Color	Max. Pressure	Pkg. Qty.		Pkg.
1/16"	1/16	Polycarbonate Plastic	Clear	125 psi @ 72° F	10	0000000	00000
3/32"	1/16	Polycarbonate Plastic	Clear	125 psi @ 72° F	10	0000000	0000
1/8"	1/16	Polycarbonate Plastic	Clear	125 psi @ 72° F	10	0000000	0000
5/32"	1/16	Polycarbonate Plastic	Clear	125 psi @ 72° F	10	0000000	0000
3/16"	1/16	Polycarbonate Plastic	Clear	125 psi @ 72° F	10	0000000	0000

Barbed Fittings for Plastic and Rubber Tubing—Chemicals

For Use With: Alcohol, Coolant, Mild Bases
Temperature Range: See table
Tubing: Use with firm (Durometer 75A-80A) polyurethane rubber, PVC plastic, or Viton® fluoroelastomer rubber

Minimize leaks in your line—these fittings have a single barb that creates a smooth clamping surface for extra-tight connections. Fittings are polypropylene, which has very good chemical resistance as well as impact and abrasion resistance.

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

Straight Adapters, Tube × Male Threaded Pipe

NPT Threads
For Tube ID	Pipe Size	Material	Color	Clarity	Max. Pressure	Temp. Range, ° F	Pkg. Qty.		Pkg.
1/16"	1/16	Polypropylene Plastic	White	Semi-Clear	120 psi @ 72° F	32° to 250°	10	000000000	00000
3/32"	1/16	Polypropylene Plastic	White	Semi-Clear	120 psi @ 72° F	32° to 250°	10	000000000	0000
1/8"	1/16	Polypropylene Plastic	White	Semi-Clear	120 psi @ 72° F	15° to 150°	10	000000000	00000

Plastic Barbed Tube Fittings for Food and Beverage

Temperature Range: 32° to 250° F
Tubing: Use with soft or firm (Durometer 45A-90A) polyurethane rubber, PVC plastic, or silicone rubber
Specifications Met: FDA Compliant 21 CFR 177.1520, USP Class VI

Minimize leaks in your line—these fittings have a single barb that creates a smooth clamping surface for extra-tight connections. Fittings are polypropylene, which has excellent impact and abrasion resistance.

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

Straight Adapters, Tube × Male Threaded Pipe

NPT Threads
For Tube ID	Pipe Size	Material	Color	Clarity	Max. Pressure	Pkg. Qty.		Pkg.
1/16"	1/16	Polypropylene Plastic	White	Semi-Clear	120 psi @ 72° F	10	00000000	00000
3/32"	1/16	Polypropylene Plastic	White	Semi-Clear	120 psi @ 72° F	10	00000000	0000
1/8"	1/16	Polypropylene Plastic	White	Semi-Clear	120 psi @ 72° F	10	00000000	0000
5/32"	1/16	Polypropylene Plastic	White	Semi-Clear	120 psi @ 72° F	10	00000000	0000
3/16"	1/16	Polypropylene Plastic	White	Semi-Clear	120 psi @ 72° F	10	00000000	0000