Stainless Steel Flared Tube Plugs

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	Material Material	Show

Stainless Steel

304 Stainless Steel

316 Stainless Steel

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	Connection Style Connection Style	Show

Flared

	Connection Style Connection Style	Hide

	For Use With For Use With

	Connection Type Connection Type

	Tube

	Type Type


Cap	Plug

	Dash Size Dash Size

	System of Measurement System of Measurement

Inch

	Thread Size Thread Size

	Thread Type Thread Type

UNF

UNJ/UNJF (Tube End)

	For Tube OD For Tube OD

	Shape Shape

	Cap/Plug

	For Tube Material For Tube Material

304 Stainless Steel

316 Stainless Steel

	Specifications Met Specifications Met

ASTM

ISO

SAE

	Flared Connection Type Flared Connection Type


Standard	Internal

	Gender Gender

Male

Female

	Drive Style Drive Style

	External Hex

	Drive Size Drive Size

	Flared Angle Flared Angle

37°

	Maximum Temperature Maximum Temperature

500° to 999° F

1,000° F or greater

	Minimum Temperature Minimum Temperature

-420° F

-320° F

	Maximum Pressure Maximum Pressure

3,000 psi @ 72° F

Not Rated

	For Tube Fabrication For Tube Fabrication

Seamless

Welded

	Length Length

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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.

Tubing: Use with welded or seamless 304 or 316 stainless steel that meets ASTM A213, ASTM A249, or ASTM A269
Specifications Met: ISO 8434, SAE J514, except fittings with BSPP and BSPT threads meet SAE J514 only

Also known as JIC (Joint Industrial Council) fittings, these provide a tight metal-to-metal seal on tubing that is flared to 37°. They are 316 stainless steel for excellent corrosion resistance. Fittings require a nut and a sleeve (ferrule) for each tube end. Nuts and sleeves are sold separately.

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

Caps

For Use With: Air, Hydraulic Fluid, Isopropyl Alcohol, Natural Gas, Phosphoric Acid, Water
Temperature Range: -420° to 1,200° F

For Tube OD	Material		Each
1/8"	316 Stainless Steel	000000000	000000
1/4"	316 Stainless Steel	000000000	0000
5/16"	316 Stainless Steel	000000000	00000
3/8"	316 Stainless Steel	000000000	00000
1/2"	316 Stainless Steel	000000000	00000
5/8"	316 Stainless Steel	000000000	00000
3/4"	316 Stainless Steel	000000000	00000
1"	316 Stainless Steel	000000000	00000

Plugs

For Use With: Air, Hydraulic Fluid, Isopropyl Alcohol, Natural Gas, Phosphoric Acid, Water
Temperature Range: -420° to 1,200° F

For Tube OD	Material		Each
1/8"	316 Stainless Steel	000000000	000000
1/4"	316 Stainless Steel	000000000	0000
5/16"	316 Stainless Steel	000000000	00000
3/8"	316 Stainless Steel	000000000	00000
1/2"	316 Stainless Steel	000000000	00000
5/8"	316 Stainless Steel	000000000	00000
3/4"	316 Stainless Steel	000000000	00000
1"	316 Stainless Steel	000000000	00000

Nuts

For Use With: Air, Hydraulic Fluid, Isopropyl Alcohol, Natural Gas, Phosphoric Acid, Water
Temperature Range: -420° to 1,200° F

For Tube OD	Nut Material		Each
1/8"	316 Stainless Steel	000000000	00000
1/4"	316 Stainless Steel	000000000	0000
5/16"	316 Stainless Steel	000000000	0000
3/8"	316 Stainless Steel	000000000	0000
1/2"	316 Stainless Steel	000000000	0000
5/8"	316 Stainless Steel	000000000	00000
3/4"	316 Stainless Steel	000000000	00000
1"	316 Stainless Steel	000000000	00000

Sleeves

For Use With: Air, Hydraulic Fluid, Isopropyl Alcohol, Natural Gas, Phosphoric Acid, Water
Temperature Range: -420° to 1,200° F

Use these sleeves with a nut and fitting to provide a tight metal-to-metal seal on stainless steel tubing that is flared to 37°. Sleeves are 316 stainless steel for excellent corrosion resistance. They are also known as ferrules.

Inch × metric sleeve adapters convert the fitting from inch to metric.

For Tube OD
Inch	Metric, mm	Sleeve Material		Each
Inch
1/8"	__	316 Stainless Steel	000000000	00000
1/4"	__	316 Stainless Steel	000000000	0000
5/16"	__	316 Stainless Steel	000000000	0000
3/8"	__	316 Stainless Steel	000000000	0000
1/2"	__	316 Stainless Steel	000000000	0000
5/8"	__	316 Stainless Steel	000000000	0000
3/4"	__	316 Stainless Steel	000000000	0000
1"	__	316 Stainless Steel	000000000	00000
Inch × Metric
1/4"	6	316 Stainless Steel	000000000	00000
5/16"	8	316 Stainless Steel	000000000	00000
3/8"	10	316 Stainless Steel	000000000	00000
1/2"	12	316 Stainless Steel	000000000	00000

Precision AN 37° Flared Fittings for Stainless Steel Tubing

For Use With: Air, Cutting Oil, Fuel Oil, Hydraulic Fluid, Mineral Oil, Water
Temperature Range: -320° to 1200° F
Tubing: Use with seamless 304 or 316 stainless steel
Specifications Met: See Table

The threads on the tube end of these fittings are Class 3A or 3B and adhere to tighter tolerances than other 37° flared fittings. They are made to exact AS (formerly AN) specifications and provide a tight metal-to-metal seal on tubing that is flared to 37°. Fittings require a nut and a sleeve (ferrule) for each tube end. Nuts and sleeves are sold separately.

304 stainless steel fittings have very good corrosion resistance. 316 stainless steel fittings have excellent corrosion resistance.

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

Caps

			304 Stainless Steel		316 Stainless Steel
For Tube OD	Max. Pressure	Specifications Met		Each		Each
1/8"	3,000 psi @ 72° F	AN929-2J, ASTM A380, SAE AS4841	0000000	000000	000000	00
1/8"	3,000 psi @ 72° F	AN929-2K, ASTM A380, SAE AS4841	000000	00	00000000	000000
1/4"	3,000 psi @ 72° F	AN929-4J, ASTM A380, SAE AS4841	0000000	0000	000000	00
1/4"	3,000 psi @ 72° F	AN929-4K, ASTM A380, SAE AS4841	000000	00	00000000	0000
3/8"	3,000 psi @ 72° F	AN929-6J, ASTM A380, SAE AS4841	0000000	0000	000000	00
3/8"	3,000 psi @ 72° F	AN929-6K, ASTM A380, SAE AS4841	000000	00	00000000	0000
1/2"	3,000 psi @ 72° F	AN929-8J, ASTM A380, SAE AS4841	0000000	00000	000000	00
1/2"	3,000 psi @ 72° F	AN929-8K, ASTM A380, SAE AS4841	000000	00	00000000	00000
3/4"	3,000 psi @ 72° F	AN929-12J, ASTM A380, SAE AS4841	0000000	00000	000000	00
3/4"	3,000 psi @ 72° F	AN929-12K, ASTM A380, SAE AS4841	000000	00	00000000	00000
1"	3,000 psi @ 72° F	AN929-16J, ASTM A380, SAE AS4841	00000000	00000	000000	00
1"	3,000 psi @ 72° F	AN929-16K, ASTM A380, SAE AS4841	000000	00	00000000	00000

Plugs

			304 Stainless Steel		316 Stainless Steel
For Tube OD	Max. Pressure	Specifications Met		Each		Each
1/8"	3,000 psi @ 72° F	AN806-J2, ASTM A380, SAE AS4841	0000000	000000	000000	00
1/8"	3,000 psi @ 72° F	AN806-K2, ASTM A380, SAE AS4841	000000	00	00000000	000000
1/4"	3,000 psi @ 72° F	AN806-J4, ASTM A380, SAE AS4841	0000000	0000	000000	00
1/4"	3,000 psi @ 72° F	AN806-K4, ASTM A380, SAE AS4841	000000	00	00000000	0000
3/8"	3,000 psi @ 72° F	AN806-J6, ASTM A380, SAE AS4841	0000000	0000	000000	00
3/8"	3,000 psi @ 72° F	AN806-K6, ASTM A380, SAE AS4841	000000	00	00000000	00000
1/2"	3,000 psi @ 72° F	AN806-J8, ASTM A380, SAE AS4841	0000000	00000	000000	00
1/2"	3,000 psi @ 72° F	AN806-K8, ASTM A380, SAE AS4841	000000	00	00000000	00000
3/4"	3,000 psi @ 72° F	AN806-J12, ASTM A380, SAE AS4841	0000000	00000	000000	00
3/4"	3,000 psi @ 72° F	AN806-K12, ASTM A380, SAE AS4841	000000	00	00000000	00000
1"	3,000 psi @ 72° F	AN806-J16, ASTM A380, SAE AS4841	00000000	00000	000000	00
1"	3,000 psi @ 72° F	AN806-K16, ASTM A380, SAE AS4841	000000	00	00000000	00000

Nuts

			304 Stainless Steel		316 Stainless Steel
For Tube OD	Max. Pressure	Specifications Met		Each		Each
1/8"	3,000 psi @ 72° F	AN818-2J, ASTM A380, SAE AS4841	0000000	00000	000000	00
1/8"	3,000 psi @ 72° F	AN818-2K, ASTM A380, SAE AS4841	000000	00	00000000	00000
1/4"	3,000 psi @ 72° F	AN818-4J, ASTM A380, SAE AS4841	0000000	0000	000000	00
1/4"	3,000 psi @ 72° F	AN818-4K, ASTM A380, SAE AS4841	000000	00	00000000	0000
3/8"	3,000 psi @ 72° F	AN818-6J, ASTM A380, SAE AS4841	0000000	0000	000000	00
3/8"	3,000 psi @ 72° F	AN818-6K, ASTM A380, SAE AS4841	000000	00	00000000	0000
1/2"	3,000 psi @ 72° F	AN818-8J, ASTM A380, SAE AS4841	0000000	0000	000000	00
1/2"	3,000 psi @ 72° F	AN818-8K, ASTM A380, SAE AS4841	000000	00	00000000	0000
3/4"	3,000 psi @ 72° F	AN818-12J, ASTM A380, SAE AS4841	0000000	00000	000000	00
3/4"	3,000 psi @ 72° F	AN818-12K, ASTM A380, SAE AS4841	000000	00	00000000	00000
1"	3,000 psi @ 72° F	AN818-16J, ASTM A380, SAE AS4841	00000000	00000	000000	00
1"	3,000 psi @ 72° F	AN818-16K, ASTM A380, SAE AS4841	000000	00	00000000	00000

Sleeves

			304 Stainless Steel		316 Stainless Steel
For Tube OD	Max. Pressure	Specifications Met		Each		Each
1/8"	3,000 psi @ 72° F	AN818-2J, ASTM A380, MS20819, SAE AS4841	0000000	00000	000000	00
1/8"	3,000 psi @ 72° F	AN819-2K, ASTM A380, MS20819, SAE AS4841	000000	00	00000000	00000
1/4"	3,000 psi @ 72° F	AN819-4J, ASTM A380, MS20819, SAE AS4841	0000000	0000	000000	00
1/4"	3,000 psi @ 72° F	AN819-4K, ASTM A380, MS20819, SAE AS4841	000000	00	00000000	0000
3/8"	3,000 psi @ 72° F	AN819-6J, ASTM A380, MS20819, SAE AS4841	0000000	0000	000000	00
3/8"	3,000 psi @ 72° F	AN819-6K, ASTM A380, MS20819, SAE AS4841	000000	00	00000000	0000
1/2"	3,000 psi @ 72° F	AN819-8J, ASTM A380, MS20819, SAE AS4841	0000000	0000	000000	00
1/2"	3,000 psi @ 72° F	AN819-8K, ASTM A380, MS20819, SAE AS4841	000000	00	00000000	0000
3/4"	3,000 psi @ 72° F	AN819-12J, ASTM A380, MS20819, SAE AS4841	0000000	0000	000000	00
3/4"	3,000 psi @ 72° F	AN819-12K, ASTM A380, MS20819, SAE AS4841	000000	00	00000000	0000
1"	3,000 psi @ 72° F	AN819-16J, ASTM A380, MS20819, SAE AS4841	00000000	00000	000000	00
1"	3,000 psi @ 72° F	AN819-16K, ASTM A380, MS20819, SAE AS4841	000000	00	00000000	00000

Vibration-Resistant Precision AN 37° Flared Fittings for Stainless Steel Tubing

For Use With: Air, Cutting Oil, Fuel Oil, Hydraulic Fluid, Mineral Oil, Water
Temperature Range: -320° to 500° F
Tubing: Use with seamless 304 or 316 stainless steel
Specifications Met: See Table

A PTFE seal on the tube end of these fittings allows for an extra-strong connection in high-vibration applications. The threads on the tube end are Class 3A and adhere to tighter tolerances than other 37° flared fittings. They are made to exact AS (formerly AN) specifications and provide a tight metal-to-metal seal on tubing that is flared to 37°. Fittings are 316 stainless steel for excellent corrosion resistance. They require a nut and a sleeve (ferrule) for each tube end. Nuts and sleeves are sold separately.

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

Plugs

PTFE Seal

For Tube OD	Material	Max. Pressure	Specifications Met		Each
1/4"	316 Stainless Steel	3,000 psi @ 72° F	ASTM A380, SAE AS9100D, SAE AS9104/1	00000000	000000
3/8"	316 Stainless Steel	3,000 psi @ 72° F	ASTM A380, SAE AS9100D, SAE AS9104/1	00000000	00000
1/2"	316 Stainless Steel	3,000 psi @ 72° F	ASTM A380, SAE AS9100D, SAE AS9104/1	00000000	00000
3/4"	316 Stainless Steel	3,000 psi @ 72° F	ASTM A380, SAE AS9100D, SAE AS9104/1	00000000	00000

Nuts

For Tube OD	Nut Material	Max. Pressure	Specifications Met		Each
1/4"	316 Stainless Steel	3,000 psi @ 72° F	AN818-4K, ASTM A380, SAE AS4841	00000000	00000
3/8"	316 Stainless Steel	3,000 psi @ 72° F	AN818-6K, ASTM A380, SAE AS4841	00000000	0000
1/2"	316 Stainless Steel	3,000 psi @ 72° F	AN818-8K, ASTM A380, SAE AS4841	00000000	0000
3/4"	316 Stainless Steel	3,000 psi @ 72° F	AN818-12K, ASTM A380, SAE AS4841	00000000	00000

Sleeves

For Tube OD	Sleeve Material	Max. Pressure	Specifications Met		Each
1/4"	316 Stainless Steel	3,000 psi @ 72° F	AN819-4K, ASTM A380, MS20819, SAE AS4841	00000000	00000
3/8"	316 Stainless Steel	3,000 psi @ 72° F	AN819-6K, ASTM A380, MS20819, SAE AS4841	00000000	0000
1/2"	316 Stainless Steel	3,000 psi @ 72° F	AN819-8K, ASTM A380, MS20819, SAE AS4841	00000000	0000
3/4"	316 Stainless Steel	3,000 psi @ 72° F	AN819-12K, ASTM A380, MS20819, SAE AS4841	00000000	0000