1 1/16"-14 Adapters | McMaster-Carr

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Copper Tube Size

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For Tube Wall Thickness

0.035"

0.109"

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30 Products

About Measuring Fittings

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

45° Flared Fittings for Copper and Brass Tubing

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

Temperature Range: -65° to 250° F
Tubing: Use with seamless brass and copper that meets ASTM B280

No sleeve is required to assemble these fittings, which makes for a faster, more convenient installation compared to 37° flared fittings. They require a nut (sold separately) for each tube end. Fittings are also known as refrigeration and SAE fittings. They are brass for good corrosion resistance.

NPTF (Dryseal) threads are compatible with NPT threads.

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

Copper tube size is the accepted designation of the copper tubing industry, not the actual tube OD.

Straight Adapters, Tube × Male Threaded Pipe

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

For Use With: Air, Cutting Oil, Diesel Fuel, Fuel Oil, Mineral Oil, Refrigerant, Water; except adapters for 1/8" and 1" tube OD are not for use with fuel oil
Specifications Met: See table

For Tube										Each
OD	Wall Thick.	Pipe Size	Thread Size	Thread Pitch, mm	Material	Gasket Material	Max. Pressure	Specifications Met		1-9	10-49	50-Up
NPTF Threads
3/4"	0.035"	1/2	__	__	Brass	__	550 psi @ 72° F	SAE J512, SAE J513, UL Listed	50635K394	000000	000000	000000
3/4"	0.035"	3/4	__	__	Brass	__	550 psi @ 72° F	SAE J512, SAE J513, UL Listed	50635K395	00000	00000	00000
Metric Threads
3/4"	0.035"	__	M27	2	Brass	Fluoroelastomer Rubber	550 psi @ 72° F	SAE J512, SAE J513, UL Listed	50635K905	00000	00000	00000
UN/UNF (SAE Straight) Threads
3/4"	0.035"	__	3/4"-16	__	Brass	Fluoroelastomer Rubber	550 psi @ 72° F	SAE J512, SAE J513, UL Listed	50635K906	00000	00000	00000
3/4"	0.035"	__	1 1/16"-12	__	Brass	Fluoroelastomer Rubber	550 psi @ 72° F	SAE J512, SAE J513, UL Listed	50635K907	00000	00000	00000

Straight Adapters, Tube × Female Threaded Pipe

For Use With: Air, Cutting Oil, Diesel Fuel, Fuel Oil, Mineral Oil, Refrigerant, Water; except adapters for 5/8" and 3/4" tube OD are not for use with fuel oil
Specifications Met: See table

For Tube							Each
OD	Wall Thick.	Pipe Size	Material	Max. Pressure	Specifications Met		1-9	10-49	50-Up
NPTF Threads
3/4"	0.035"	3/4	Brass	550 psi @ 73° F	SAE J512, SAE J513	50635K717	000000	000000	000000

Straight Adapters, Tube × Female Socket-Connect Tube

For Use With: Air, Cutting Oil, Diesel Fuel, Fuel Oil, Mineral Oil, Refrigerant, Water
Specifications Met: See table

For Tube		Socket Connection						Each
OD	Wall Thick.	Copper Tube Size	For Tube OD	Material	Max. Pressure	Specifications Met		1-9	10-49	50-Up
3/4"	0.035"	5/8	3/4"	Brass	550 psi @ 72° F	SAE J512, SAE J513	50635K585	000000	000000	000000
3/4"	0.035"	3/4	7/8"	Brass	550 psi @ 72° F	SAE J512, SAE J513, UL Listed	50635K921	00000	00000	00000

Straight Connectors, Tube

For Use With: Air, Cutting Oil, Diesel Fuel, Fuel Oil, Mineral Oil, Refrigerant, Water
Specifications Met: SAE J512, SAE J513, UL Listed

For Tube					Each
OD	Wall Thick.	Material	Max. Pressure		1-9	10-49	50-Up
3/4"	0.035"	Brass	550 psi @ 72° F	50635K517	000000	000000	000000

90° Elbow Adapters, Tube × Male Threaded Pipe

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

For Use With:
Air, Cutting Oil, Diesel Fuel, Fuel Oil, Mineral Oil, Refrigerant, Water
Specifications Met: SAE J512, SAE J513, UL Listed

For Tube								Each
OD	Wall Thick.	Pipe Size	Thread Size	Material	Gasket Material	Max. Pressure		1-9	10-49	50-Up
NPTF Threads
3/4"	0.035"	1/2	__	Brass	__	550 psi @ 72° F	50635K424	000000	000000	000000
3/4"	0.035"	3/4	__	Brass	__	550 psi @ 72° F	50635K425	00000	00000	00000
UN/UNF (SAE Straight) Threads
3/4"	0.035"	__	1 1/16"-12	Brass	Fluoroelastomer Rubber	550 psi @ 72° F	50635K928	00000	00000	00000

90° Elbow Adapters (Swivels Until Tightened), Tube × Female Threaded Pipe

For Use With: Air, Cutting Oil, Diesel Fuel, Fuel Oil, Mineral Oil, Refrigerant, Water
Specifications Met: SAE J512, SAE J513, UL Listed

Fittings that swivel until tightened rotate 360° for easy installation.

						Each
For Tube OD	Thread Size	Material	Gasket Material	Max. Pressure		1-9	10-49	50-Up
UN/UNF (SAE Straight) Threads
3/4"	1 1/16"-14	Brass	Fluoroelastomer Rubber	550 psi @ 72° F	50635K937	000000	000000	000000

90° Elbow Connectors, Tube

For Use With: Air, Cutting Oil, Diesel Fuel, Fuel Oil, Mineral Oil, Refrigerant, Water
Specifications Met: SAE J512, SAE J513, UL Listed

For Tube					Each
OD	Wall Thick.	Material	Max. Pressure		1-9	10-49	50-Up
3/4"	0.035"	Brass	550 psi @ 72° F	50635K527	000000	000000	000000

45° Elbow Adapters, Tube × Male Threaded Pipe

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

For Use With: Air, Cutting Oil, Diesel Fuel, Fuel Oil, Mineral Oil, Refrigerant, Water
Specifications Met: SAE J512, SAE J513, UL Listed

For Tube								Each
OD	Wall Thick.	Pipe Size	Thread Size	Material	Gasket Material	Max. Pressure		1-9	10-49	50-Up
NPTF Threads
3/4"	0.035"	1/2	__	Brass	__	550 psi @ 72° F	50635K945	000000	000000	000000
UN/UNF (SAE Straight) Threads
3/4"	0.035"	__	3/4"-16	Brass	Fluoroelastomer Rubber	550 psi @ 72° F	50635K949	00000	00000	00000
3/4"	0.035"	__	1 1/16"-12	Brass	Fluoroelastomer Rubber	550 psi @ 72° F	50635K95	00000	00000	00000

Tee Connectors, Tube

For Use With: Air, Cutting Oil, Diesel Fuel, Fuel Oil, Mineral Oil, Refrigerant, Water
Specifications Met: SAE J512, SAE J513, UL Listed

For Tube					Each
OD	Wall Thick.	Material	Max. Pressure		1-9	10-49	50-Up
3/4"	0.035"	Brass	550 psi @ 72° F	50635K537	000000	000000	000000

Caps

For Use With: Air, Cutting Oil, Diesel Fuel, Fuel Oil, Mineral Oil, Refrigerant, Water;
except caps for 1/8" tube OD are only for use with refrigerant
Specifications Met: See table

For Tube						Each
OD	Wall Thick.	Material	Max. Pressure	Specifications Met		1-9	10-49	50-Up
3/4"	0.035"	Brass	550 psi @ 72° F	SAE J512, SAE J513, UL Listed	50635K547	000000	000000	000000

Nuts

(A) Short Nut

(A) Long Nut

For Use With: Air, Cutting Oil, Diesel Fuel, Fuel Oil, Mineral Oil, Refrigerant, Water; except nuts for 1" tube OD are not for use with fuel oil
Specifications Met: SAE J512, SAE J513, UL Listed; except nuts for 1" tube OD meet SAE J512 and SAE J513 only

	For Tube						Each
	OD	Wall Thick.	Nut Material	Max. Pressure	Lg.		1-19	20-99	100-Up
Short Nuts
A	3/4"	0.035"	Brass	550 psi @ 72° F	1 5/32"	50635K654	00000	00000	00000
A	3/4"	0.109"	Brass	550 psi @ 72° F	1 1/2"	50635K567	00000	0000	0000
Long Nuts
A	3/4"	0.109"	Brass	550 psi @ 72° F	2 3/16"	50635K557	00000	00000	00000

Nuts for 45° Flared Fittings for Copper and Brass Tubing

(A) Short Nut

(A) Long Nut

For Use With: Air, Cutting Oil, Diesel Fuel, Fuel Oil, Mineral Oil, Refrigerant, Water; except nuts for 1" tube OD are not for use with fuel oil
Temperature Range: -65° to 250° F
Tubing: Use with seamless brass and copper that meets ASTM B280
Specifications Met: SAE J512, SAE J513, UL Listed; except nuts for 1" tube OD meet SAE J512 and SAE J513 only

Use these nuts with 45° flared tube fittings to provide a tight metal-to-metal seal on flared copper and brass tubing. Nuts are brass for good corrosion resistance. They don’t require a sleeve, which makes for a fast, convenient installation.

Long nuts support more of the tube’s surface area than short nuts for a strong grip in high-vibration applications.

	For Tube
	OD	Wall Thick.	Nut Material	Max. Pressure	Lg.		Each
Short Nuts
A	3/4"	0.035"	Brass	550 psi @ 72° F	1 5/32"	50635K654	00000
A	3/4"	0.109"	Brass	550 psi @ 72° F	1 1/2"	50635K567	00000
Long Nuts
A	3/4"	0.109"	Brass	550 psi @ 72° F	2 3/16"	50635K557	00000

Metal Push-On Barbed Hose Fittings for Air and Water

Fittings have sharper barbs than standard barbed hose fittings to grip rubber push-on hose with no clamps or ferrules required. The more you pull on the fittings, the tighter the hose will grip.

Brass fittings are softer than other metal fittings, so they’re easier to thread together. They have good corrosion resistance.

Fittings with a flared end meet JIC or SAE standards for dimensions. Fittings with a 45° flared end are also known as refrigeration and SAE fittings.The optional installation tool (sold separately) allows you to connect large quantities of barbed fittings to push-on hose. Use the built-in cutter to squarely cut the hose without fraying. Next, lubricate either the push-on hose, fitting or both. Then, clamp the hose into the tool’s vise and apply light pressure on the handle to drive into the fitting.

Note: To ensure proper connection, the barbed end has to be pushed in all the way, with the hose end concealed by the ring.

Straight Adapters, Hose × UN/UNF (Tube End) Male 45° Flared Tube

Maximum Pressure: 300 psi @ 72° F
Temperature Range: -20° to 150° F
Specifications Met: SAE J512

Adapters
			Ring Stop					Replacement Ring Stops
For Hose ID	For Tube OD	Thread Size	Material	Color	Pkg. Qty.		Pkg.	Pkg. Qty.		Pkg.
Brass
3/4"	3/4"	1 1/16"-14	Plastic	Yellow	1	53485K85	000000	25	91465K939	00000

Installation Tool

				Mounting Hole
For Hose ID Range	Lg.	Ht.	Dp.	Dia.	No. of	Mounting Fasteners Included		Each
1/4" to 3/4"	13 1/2"	7"	2 3/8"	5/8"	4	No	53685K11	0000000

Refrigerant Hose Fittings

Maximum Pressure: 500 psi @ 72° F
Maximum Vacuum: 28 in. of Hg @ 72° F
Temperature Range: -40° to 280° F
Compatible With: Danfoss EZ Clip
All Fittings Swivel Until Tightened
Specifications Met: SAE J2064, SAE J3062
Compatible Hose: Refrigerant Hose

No need for expensive crimping tools—these fittings make air conditioning and refrigeration assemblies with clamps. Instead of a crimper, they use two clamps that you tighten against a cage on your fitting with pliers. Both fitting ends swivel until tightened, so you don't have to rotate the entire hose during installation. The cage and clamps stretch out after use, so they shouldn't be used again.

Fittings with an O-ring pilot create a leak-tight seal, so they’re often used in commercial and vehicle air conditioning systems. When you screw the fitting onto your tube, the bead and the pilot squeeze the O-ring, which fills in any gaps. The pilot also helps guide your hose onto the fitting, making it easy to properly align and secure the connection.

Straight Adapters, Barbed Hose × O-Ring Pilot Female Threaded Tube

O-Ring Pilot Female Threaded Tube

	Dash Size
For Hose ID	For Hose	Fitting	Thread Size	Bead OD	Pilot Lg.	Includes		Each
Zinc-Plated Steel
5/8"	12	12	1 1/16"-14	0.91"	0.19"	2 Clamps, Cage, O-Ring	6124N24	000000

90° Elbow Adapters, Barbed Hose × O-Ring Pilot Female Threaded Tube

O-Ring Pilot Female Threaded Tube

	Dash Size
For Hose ID	For Hose	Fitting	Thread Size	Bead OD	Pilot Lg.	Includes		Each
Zinc-Plated Steel
5/8"	12	12	1 1/16"-14	0.91"	0.19"	2 Clamps, Cage, O-Ring	6124N27	000000

Hose Clamp Pliers

		Jaw
Overall Lg.	Grip Style	Opening Style	Texture	Material	Tip Type		Each
Pinch Clamp Pliers—Straight Jaw
6 7/8"	Cushion	Spring Assisted	Smooth	Steel	Fixed	6124N12	0000000

Cage and Clamp Kits

		Band
For Hose ID	Dash Size	Wd.	Thick.	Reusable	Includes		Each
304 Stainless Steel Clamps with 301 Stainless Steel Cage
Single Pinch
5/8"	12	5/16"	0.024"	No	2 Clamps, Cage	6124N16	00000

Cage and Clamp Assortments with Hose Clamp Pliers and Hose Cutters

			Band
For Hose ID Range	For OD	Dash Size	Wd.	Thick.	Reusable	Number of Pieces	Includes		Each
304 Stainless Steel Clamps with 301 Stainless Steel Cages
Single Pinch
5/16" to 5/8"	0.6" to 0.99"	06, 08, 10, 12	5/16"	0.024"	No	122	Cages with 5/16" band width for 5/16" hose ID (10 each) Clamps with 5/16" band width, .32" clamp ID (20 each) Cages with 5/16" band width for 13/32" hose ID (10 each) Clamps with 5/16" band width, .42" clamp ID (20 each) Cages with 5/16" band width for 1/2" hose ID (10 each) Clamps with 5/16" band width, .52" clamp ID (20 each) Cages with 5/16" band width for 5/8" hose ID (10 each) Clamps with 5/16" band width, .62" clamp ID (20 each) Pinch Clamp Pliers Hose Cutter	6124N11	0000000