Barbed ASME-Code Tube Fittings

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132 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.

Easy-Fit Barbed Hose Fittings for Air and Water

Low-profile barbs and a longer first barb allow for a smoother, easier installation than other barbed fittings. Slide the barbed end into rubber hose and secure with a clamp.

Steel fittings are stronger and more durable than other metal fittings. They should be used in noncorrosive environments. Zinc-plated steel fittings have slightly better corrosion resistance than unplated steel fittings. Aluminum fittings are lighter in weight than other metal fittings. They have good corrosion resistance. Brass fittings are softer than other metal fittings, so they’re easier to thread together. They have good corrosion resistance.

Fittings with a threaded end are also known as hose nipples.

Fittings with a hex body can be tightened with a wrench.

Hose connectors are also known as hose menders and splicers. Use them to connect lengths of hose or to repair damaged hose.

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

Straight Adapters, Hose × NPT Male Threaded Pipe

Straight Adapter with Hex Body

Straight Adapter with Round Body

Maximum Pressure: 125 psi @ 72° F, except For 5" to 8" Hose IDs: 100 psi @ 72° F
Maximum Vacuum: For 1/2" to 4" Hose IDs: 26 in. of Hg @ 72° F
Temperature Range: -20° to 200° F
Attachment Type: Use Worm-Drive Clamps, Bolt Clamps or Band-and-Buckle Clamps
Specifications Met: See table

Steel
For Hose ID	Pipe Size	Body Shape	Specifications Met		Each
1/2"	1/2	Hex	ASME B1.20.1, ASTM A53	0000000	00000
3/4"	3/4	Hex	ASME B1.20.1, ASTM A53	0000000	0000
3/4"	1	Round	ASME B1.20.1, ASTM A53	00000000	00000
1"	3/4	Round	ASME B1.20.1, ASTM A53	00000000	00000
1"	1	Hex	ASME B1.20.1, ASTM A53	0000000	0000
1"	1 1/4	Round	ASME B1.20.1, ASTM A53	00000000	00000
1 1/4"	1	Round	ASME B1.20.1, ASTM A53	00000000	00000
1 1/4"	1 1/4	Hex	ASME B1.20.1, ASTM A53	0000000	0000
1 1/4"	1 1/2	Round	ASME B1.20.1, ASTM A53	00000000	00000
1 1/2"	1 1/4	Round	ASME B1.20.1, ASTM A53	00000000	00000
1 1/2"	1 1/2	Hex	ASME B1.20.1, ASTM A53	0000000	0000
1 1/2"	2	Round	ASME B1.20.1, ASTM A53	00000000	00000
2"	1 1/2	Round	ASME B1.20.1, ASTM A53	00000000	00000
2"	2	Round	ASME B1.20.1, ASTM A53	0000000	00000
2"	2 1/2	Round	ASME B1.20.1, ASTM A53	00000000	00000
2 1/2"	2	Round	ASME B1.20.1, ASTM A53	00000000	00000
2 1/2"	2 1/2	Round	ASME B1.20.1, ASTM A53	0000000	00000
2 1/2"	3	Round	ASME B1.20.1, ASTM A53	00000000	00000
3"	2 1/2	Round	ASME B1.20.1, ASTM A53	00000000	00000
3"	3	Round	ASME B1.20.1, ASTM A53	0000000	00000
3"	4	Round	ASME B1.20.1, ASTM A53	00000000	00000
4"	3	Round	ASME B1.20.1, ASTM A53	00000000	00000
4"	4	Round	ASME B1.20.1, ASTM A53	0000000	00000
5"	5	Round	ASME B1.20.1, ASTM A53	0000000	00000
6"	6	Round	ASME B1.20.1, ASTM A53	0000000	000000
8"	8	Round	ASME B1.20.1, ASTM A53	0000000	000000
Zinc-Plated Steel
1/2"	1/2	Hex	ASME B1.20.1, ASTM A53	0000000	0000
3/4"	1/2	Round	ASME B1.20.1, ASTM A53	00000000	00000
3/4"	3/4	Hex	ASME B1.20.1, ASTM A53	0000000	0000
3/4"	1	Round	ASME B1.20.1, ASTM A53	00000000	00000
1"	3/4	Round	ASME B1.20.1, ASTM A53	00000000	00000
1"	1	Hex	ASME B1.20.1, ASTM A53	0000000	0000
1"	1 1/4	Round	ASME B1.20.1, ASTM A53	00000000	00000
1 1/4"	1	Round	ASME B1.20.1, ASTM A53	00000000	00000
1 1/4"	1 1/4	Hex	ASME B1.20.1, ASTM A53	0000000	0000
1 1/4"	1 1/2	Round	ASME B1.20.1, ASTM A53	00000000	00000
1 1/2"	1 1/4	Round	ASME B1.20.1, ASTM A53	00000000	00000
1 1/2"	1 1/2	Hex	ASME B1.20.1, ASTM A53	0000000	0000
1 1/2"	2	Round	ASME B1.20.1, ASTM A53	00000000	00000
2"	1 1/2	Round	ASME B1.20.1, ASTM A53	00000000	00000
2"	2	Round	ASME B1.20.1, ASTM A53	0000000	00000
2"	2 1/2	Round	ASME B1.20.1, ASTM A53	00000000	00000
2 1/2"	2	Round	ASME B1.20.1, ASTM A53	00000000	00000
2 1/2"	2 1/2	Round	ASME B1.20.1, ASTM A53	0000000	00000
2 1/2"	3	Round	ASME B1.20.1, ASTM A53	00000000	00000
3"	2 1/2	Round	ASME B1.20.1, ASTM A53	00000000	00000
3"	3	Round	ASME B1.20.1, ASTM A53	0000000	00000
3"	4	Round	ASME B1.20.1, ASTM A53	00000000	000000
4"	3	Round	ASME B1.20.1, ASTM A53	00000000	000000
4"	4	Round	ASME B1.20.1, ASTM A53	0000000	00000
5"	5	Round	ASME B1.20.1, ASTM A53	0000000	00000
6"	6	Round	ASME B1.20.1, ASTM A53	0000000	000000
8"	8	Round	ASME B1.20.1, ASTM A53	0000000	000000
Brass
1/2"	1/2	Round	ASME B1.20.1, ASTM B43	0000000	00000
3/4"	3/4	Hex	ASME B1.20.1, ASTM B43	0000000	00000
1"	1	Hex	ASME B1.20.1, ASTM B43	0000000	00000
1 1/4"	1 1/4	Hex	ASME B1.20.1, ASTM B43	0000000	00000
1 1/2"	1 1/2	Hex	ASME B1.20.1, ASTM B43	0000000	00000
2"	2	Round	ASME B1.20.1, ASTM B43	0000000	00000
2 1/2"	2 1/2	Round	ASME B1.20.1, ASTM B43	0000000	00000
3"	3	Round	ASME B1.20.1, ASTM B43	0000000	000000
4"	4	Round	ASME B1.20.1, ASTM B43	0000000	000000
Aluminum
1/2"	1/2	Round	ASME B1.20.1, ASTM B241	0000000	00000
3/4"	3/4	Hex	ASME B1.20.1, ASTM B241	0000000	00000
1"	1	Hex	ASME B1.20.1, ASTM B241	0000000	00000
1 1/4"	1 1/4	Hex	ASME B1.20.1, ASTM B241	0000000	00000
1 1/2"	1 1/2	Hex	ASME B1.20.1, ASTM B241	0000000	00000
2"	2	Round	ASME B1.20.1, ASTM B241	0000000	00000
2 1/2"	2 1/2	Round	ASME B1.20.1, ASTM B241	0000000	00000
3"	3	Round	ASME B1.20.1, ASTM B241	0000000	00000
4"	4	Round	ASME B1.20.1, ASTM B241	0000000	00000
6"	6	Round	ASME B1.20.1, ASTM B241	0000000	000000

Straight Connectors, Hose

Maximum Pressure: 125 psi @ 72° F, except For 6" to 8" Hose IDs: 100 psi @ 72° F
Maximum Vacuum: For 1/2" to 4" Hose IDs: 26 in. of Hg @ 72° F
Temperature Range: -20° to 200° F
Attachment Type: Use Worm-Drive Clamps, Bolt Clamps or Band-and-Buckle Clamps; except For 6" to 8" Hose IDs: Use Band-and-Buckle Clamps
Specifications Met: See table

Zinc-Plated Steel
For Hose ID	Specifications Met		Each
1/2"	ASTM A53	00000000	00000
3/4"	ASTM A53	00000000	0000
1"	ASTM A53	00000000	0000
1 1/4"	ASTM A53	00000000	00000
1 1/2"	ASTM A53	00000000	00000
2"	ASTM A53	00000000	00000
2 1/2"	ASTM A53	00000000	00000
3"	ASTM A53	00000000	00000
4"	ASTM A53	00000000	00000
Brass
3/4"	ASTM B43	00000000	00000
1"	ASTM B43	00000000	00000
1 1/4"	ASTM B43	00000000	00000
1 1/2"	ASTM B43	00000000	00000
2"	ASTM B43	00000000	00000

Tight-Seal Barbed Hose Fittings for Air and Water

Also known as ball-seat hose nipples, these fittings consist of a barbed shaft with a rounded end that sits inside a female threaded nut. When mated with a male threaded fitting, the rounded end presses tightly against the inside of the male threads for a better seal than a single-piece fitting. Once assembled, insert the barbed end into rubber hose and secure with a clamp or a crimp-on hose ferrule. The nut swivels until tightened for easy installation. Fittings are brass for good corrosion resistance.

NPSM (National Pipe Straight Mechanical) female threads are compatible with male NPT and NPTF (Dryseal) threads.

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

Straight Adapters (Swivels Until Tightened), Hose × Female Threaded Pipe

Exploded View

Assembled View

Maximum Pressure: 250 psi @72° F
Temperature Range: -40° to 160° F
Attachment Type: Use Crimp-On Hose Ferrules, except For 1/2" to 3/4" Hose IDs: Use Band-and-Buckle Clamps
Specifications Met: See table

Brass
For Hose ID	Pipe Size	Thread Type	Specifications Met	Pkg. Qty.		Pkg.
1/8"	1/8	NPSM	ASME B1.20.1, SAE J476	5	00000000	000000
3/16"	1/8	NPSM	ASME B1.20.1, SAE J476	5	00000000	00000
3/16"	1/4	NPSM	ASME B1.20.1, SAE J476	5	00000000	00000
1/4"	1/8	NPSM	ASME B1.20.1, SAE J476	5	00000000	00000
1/4"	1/4	NPSM	ASME B1.20.1, SAE J476	5	00000000	00000
1/4"	3/8	NPSM	ASME B1.20.1, SAE J476	5	00000000	00000
5/16"	1/4	NPSM	ASME B1.20.1, SAE J476	5	00000000	00000
5/16"	3/8	NPSM	ASME B1.20.1, SAE J476	5	00000000	00000
3/8"	1/4	NPSM	ASME B1.20.1, SAE J476	5	00000000	00000
3/8"	3/8	NPSM	ASME B1.20.1, SAE J476	5	00000000	00000
3/8"	1/2	NPSM	ASME B1.20.1, SAE J476	2	00000000	00000
1/2"	3/8	NPSM	ASME B1.20.1, SAE J476	2	00000000	00000
1/2"	1/2	NPSM	ASME B1.20.1, SAE J476	2	00000000	00000
3/4"	3/4	NPSM	ASME B1.20.1, SAE J476	2	00000000	00000

Easy-Fit Barbed Hose Fittings for Chemicals

Low-profile barbs and a longer first barb allow for a smoother, easier installation than other barbed fittings. Slide the barbed end into rubber hose and secure with a clamp. Fittings are 316 stainless steel, which has excellent corrosion resistance to withstand a variety of chemicals.

Adapters are also known as hose nipples; they adapt a barbed end to a threaded end. Adapters with a hex body can be tightened with a wrench.

Connectors are also known as hose menders and splicers. Use them to connect lengths of hose or to repair damaged hose.

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

Straight Adapters, Hose × NPT Male Threaded Pipe

Round Body

Hex Body

For Use With: Acetone, Isopropyl Alcohol, Mineral Oil, Sodium Hydroxide
Maximum Pressure: See table
Maximum Vacuum: 26 in. of Hg @ 72° F
Temperature Range: -20° to 200° F
Attachment Type: Use Worm-Drive Clamps, Bolt Clamps or Band-and-Buckle Clamps
Specifications Met: ASME B1.20.1, ASTM A312

316 Stainless Steel
For Hose ID	Pipe Size	Body Shape	Max. Pressure		Each
1/2"	1/2	Round	200 psi @ 72° F	0000000	000000
3/4"	1/2	Round	175 psi @ 72° F	0000000	00000
3/4"	3/4	Hex	175 psi @ 72° F	0000000	00000
3/4"	1	Round	175 psi @ 72° F	0000000	00000
1"	3/4	Round	150 psi @ 72° F	0000000	00000
1"	1	Hex	150 psi @ 72° F	0000000	00000
1"	1 1/4	Round	150 psi @ 72° F	0000000	00000
1 1/4"	1	Round	140 psi @ 72° F	0000000	00000
1 1/4"	1 1/4	Hex	140 psi @ 72° F	0000000	00000
1 1/4"	1 1/2	Round	140 psi @ 72° F	0000000	00000
1 1/2"	1	Round	130 psi @ 72° F	0000000	00000
1 1/2"	1 1/4	Round	130 psi @ 72° F	0000000	00000
1 1/2"	1 1/2	Hex	130 psi @ 72° F	0000000	00000
1 1/2"	2	Round	130 psi @ 72° F	0000000	000000
2"	1 1/4	Round	110 psi @ 72° F	0000000	000000
2"	1 1/2	Round	110 psi @ 72° F	0000000	000000
2"	2	Round	110 psi @ 72° F	0000000	00000
2"	2 1/2	Round	110 psi @ 72° F	0000000	000000
2 1/2"	2	Round	70 psi @ 72° F	0000000	000000
2 1/2"	2 1/2	Round	70 psi @ 72° F	0000000	00000
3"	3	Round	50 psi @ 72° F	0000000	000000
4"	4	Round	50 psi @ 72° F	0000000	000000
5"	5	Round	45 psi @ 72° F	0000000	000000
6"	6	Round	25 psi @ 72° F	0000000	000000
8"	8	Round	25 psi @ 72° F	0000000	000000

Straight Connectors

For Use With: Acetone, Isopropyl Alcohol, Mineral Oil, Sodium Hydroxide
Maximum Pressure: 125 psi @ 72° F
Maximum Vacuum: 26 in. of Hg @ 72° F
Temperature Range: -20° to 200° F
Attachment Type: Use Worm-Drive Clamps, Bolt Clamps or Band-and-Buckle Clamps
Specifications Met: ASTM A312

316 Stainless Steel
For Hose ID	Body Shape		Each
3/4"	Round	00000000	000000
1"	Round	00000000	00000
1 1/4"	Round	00000000	00000
1 1/2"	Round	00000000	00000
2"	Round	00000000	00000
3"	Round	00000000	000000
4"	Round	00000000	000000