3-A Certified 18-00 O-Rings

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27 Products

About O-Rings

Find the right size, compare compatible materials, and choose the best cross section shape for your O-ring.

Chemical-Resistant Viton® Fluoroelastomer
O-Rings for High-Polish Metal Sanitary Tube Fittings

O-Ring

Use these O-rings with metric sanitary fittings, which are sometimes called aseptic fittings. Made of Viton® fluoroelastomer, these O-rings resist a wide range of chemicals, including benzene, butyl alcohol, and ethylene glycol. They’re 3-A certified to meet sanitary design standards. They have a round profile and work for static and dynamic sealing applications.

									Each
For Tube OD, mm	Width, mm	ID, mm	OD, mm	Specifications Met	Temperature Range, °F	Color	For Use With		1-9	10-Up
10	3.5	12	19	3-A Certified 18-00	32° to 300°	Black	Water	5155N28	000000	000000
15	3.5	18	25	3-A Certified 18-00	32° to 300°	Black	Water	5155N29	00000	00000
20	3.5	22	29	3-A Certified 18-00	32° to 300°	Black	Water	5155N31	00000	00000
25	3.5	28	35	3-A Certified 18-00	32° to 300°	Black	Water	5155N32	00000	00000
32	5	34	44	3-A Certified 18-00	32° to 300°	Black	Water	5155N33	00000	00000
40	5	40	50	3-A Certified 18-00	32° to 300°	Black	Water	5155N34	00000	00000
50	5	52	62	3-A Certified 18-00	32° to 300°	Black	Water	5155N35	00000	00000
65	5	68	78	3-A Certified 18-00	32° to 300°	Black	Water	5155N36	00000	00000
80	5	83	93	3-A Certified 18-00	32° to 300°	Black	Water	5155N37	00000	00000

Ultra-Chemical-Resistant Rigid PTFE O-Rings
for High-Polish Metal Sanitary Tube Fittings

Pair these O-rings with metric sanitary fittings, which are commonly known as aseptic fittings. Made of PTFE, they’re rigid with a slippery surface and resist harsh chemicals such as acetone, fluorinated solvents, methanol, and boric acid. They’re 3-A certified to meet sanitary design standards. They have a round profile and are good for a wide range of static and dynamic sealing applications.

									Each
For Tube OD, mm	Width, mm	ID, mm	OD, mm	For Use With	Specifications Met	Temperature Range, °F	Color		1-9	10-Up
10	3.5	12	19	Steam, Water	3-A Certified 18-00	32° to 280°	White	5155N39	000000	000000
15	3.5	18	25	Steam, Water	3-A Certified 18-00	32° to 280°	White	5155N41	00000	00000
20	3.5	22	29	Steam, Water	3-A Certified 18-00	32° to 280°	White	5155N42	00000	00000
25	3.5	28	35	Steam, Water	3-A Certified 18-00	32° to 280°	White	5155N43	00000	00000
32	5	34	44	Steam, Water	3-A Certified 18-00	32° to 280°	White	5155N44	00000	00000
40	5	40	50	Steam, Water	3-A Certified 18-00	32° to 280°	White	5155N45	00000	00000
50	5	52	62	Steam, Water	3-A Certified 18-00	32° to 280°	White	5155N46	00000	00000
65	5	68	78	Steam, Water	3-A Certified 18-00	32° to 280°	White	5155N47	00000	00000

Water- and Steam-Resistant EPDM O-Rings
for High-Polish Metal Sanitary Tube Fittings

O-Ring

Use these O-rings with metric sanitary fittings, which are also called aseptic fittings. Made of EPDM, they resist water, steam, ethanol, and ethylene glycol. They’re 3-A certified to meet sanitary design standards. They have a round profile and work for a wide range of static and dynamic sealing applications.

								Each
For Tube OD, mm	Width, mm	ID, mm	OD, mm	Specifications Met	Temperature Range, °F	Color		1-9	10-Up
10	3.5	12	19	3-A Certified 18-00	32° to 280°	Black	5155N17	000000	000000
15	3.5	18	25	3-A Certified 18-00	32° to 280°	Black	5155N18	00000	00000
20	3.5	22	29	3-A Certified 18-00	32° to 280°	Black	5155N19	00000	00000
25	3.5	28	35	3-A Certified 18-00	32° to 280°	Black	5155N21	00000	00000
32	5	34	44	3-A Certified 18-00	32° to 280°	Black	5155N22	00000	00000
40	5	40	50	3-A Certified 18-00	32° to 280°	Black	5155N23	00000	00000
50	5	52	62	3-A Certified 18-00	32° to 280°	Black	5155N24	00000	00000
65	5	68	78	3-A Certified 18-00	32° to 280°	Black	5155N25	00000	00000
80	5	83	93	3-A Certified 18-00	32° to 280°	Black	5155N26	00000	00000
100	5	102	112	3-A Certified 18-00	32° to 280°	Black	5155N27	00000	00000

Chemical-Resistant Viton® FluoroelastomerO-Rings for High-Polish Metal Sanitary Tube Fittings

Ultra-Chemical-Resistant Rigid PTFE O-Ringsfor High-Polish Metal Sanitary Tube Fittings

Water- and Steam-Resistant EPDM O-Ringsfor High-Polish Metal Sanitary Tube Fittings

Chemical-Resistant Viton® Fluoroelastomer
O-Rings for High-Polish Metal Sanitary Tube Fittings

Ultra-Chemical-Resistant Rigid PTFE O-Rings
for High-Polish Metal Sanitary Tube Fittings

Water- and Steam-Resistant EPDM O-Rings
for High-Polish Metal Sanitary Tube Fittings