O-Ring Splicing Kits | McMaster-Carr

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51 Products

Make-Your-Own O-Ring Kits with Cord Stock

Everything you need to make custom O-rings on demand. These kits include cord stock, a razor blade, a splicing jig, and adhesive. The adhesive does not work well on silicone—if you want to make silicone O-rings, consider a hot-bonding kit instead.

Buna-N resists grease, hydraulic oil, and motor oil, in addition to mild chemicals and water.

Viton® fluoroelastomer holds up to a wide range of chemicals. It also resists transmission fluid.

EPDM withstands water, steam, and glycol-based fluids, including brake fluid.

Buna-N Rubber

O-Ring Kits						Replacement Adhesives (0.1 fl. oz)
Wd.	Temperature Range, °F	Color	Lg., ft.		Each		Each
Round—Durometer 50A (Soft)
0.07", 0.103", 0.139", 0.21", 0.275"	-25° to 212°	Black	7	9543N11	000000	7625A16	00000
1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 5 mm, 5.7 mm, 8.4 mm	-25° to 212°	Black	3	9543N12	00000	7625A16	0000
0.07", 0.103", 0.139", 0.21", 0.275", 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 5 mm, 5.7 mm, 8.4 mm	-25° to 212°	Black	3	9543N13	000000	7625A16	0000
Round—Durometer 70A (Medium)
0.07", 0.103", 0.139", 0.21", 0.275"	-25° to 212°	Black	7	9543N51	00000	7625A16	0000
1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 5 mm, 5.7 mm, 8.4 mm	-25° to 212°	Black	3	9693K1	00000	7625A16	0000
0.07", 0.103", 0.139", 0.21", 0.275", 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 5 mm, 5.7 mm, 8.4 mm	-25° to 212°	Black	3	9410K11	00000	7625A16	0000
Round—Durometer 90A (Hard)
0.07", 0.103", 0.139", 0.21", 0.275"	-25° to 212°	Black	7	9543N14	00000	7625A16	0000
1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 5 mm, 5.7 mm, 8.4 mm	-25° to 212°	Black	3	9543N15	00000	7625A16	0000
0.07", 0.103", 0.139", 0.21", 0.275", 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 5 mm, 5.7 mm, 8.4 mm	-25° to 212°	Black	3	9543N16	00000	7625A16	0000
Square—Durometer 70A (Medium)
0.07", 0.103", 0.139", 0.21", 0.275"	-25° to 212°	Black	7	9543N17	00000	7625A16	0000
1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 5 mm, 5.7 mm, 8.4 mm	-25° to 212°	Black	3	9543N18	00000	7625A16	0000
0.07", 0.103", 0.139", 0.21", 0.275", 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 5 mm, 5.7 mm, 8.4 mm	-25° to 212°	Black	3	9543N19	000000	7625A16	0000

Viton® Fluoroelastomer Rubber

O-Ring Kits						Replacement Adhesives (0.1 fl. oz)
Wd.	Temperature Range, °F	Color	Lg., ft.		Each		Each
Round—Durometer 60A (Soft)
0.07", 0.103", 0.139", 0.21", 0.275"	5° to 395°	Black	7	9543N23	0000000	7625A16	00000
1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 5 mm, 5.7 mm, 8.4 mm	5° to 395°	Black	3	9543N24	000000	7625A16	0000
0.07", 0.103", 0.139", 0.21", 0.275", 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 5 mm, 5.7 mm, 8.4 mm	5° to 395°	Black	3	9543N25	000000	7625A16	0000
Round—Durometer 75A (Medium)
0.07", 0.103", 0.139", 0.21", 0.275"	5° to 395°	Black	7	9543N52	00000	7625A16	0000
1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 5 mm, 5.7 mm, 8.4 mm	5° to 395°	Black	3	9543N21	000000	7625A16	0000
0.07", 0.103", 0.139", 0.21", 0.275", 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 5 mm, 5.7 mm, 8.4 mm	5° to 395°	Black	3	9543N22	000000	7625A16	0000
Round—Durometer 90A (Hard)
0.07", 0.103", 0.139", 0.21", 0.275"	5° to 395°	Black	7	9543N26	000000	7625A16	0000
1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 5 mm, 5.7 mm, 8.4 mm	5° to 395°	Black	3	9543N27	000000	7625A16	0000
0.07", 0.103", 0.139", 0.21", 0.275", 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 5 mm, 5.7 mm, 8.4 mm	5° to 395°	Black	3	9543N28	000000	7625A16	0000
Square—Durometer 75A (Medium)
0.07", 0.103", 0.139", 0.21", 0.275"	5° to 395°	Black	7	9543N29	000000	7625A16	0000
1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 5 mm, 5.7 mm, 8.4 mm	5° to 395°	Black	3	9543N31	000000	7625A16	0000
0.07", 0.103", 0.139", 0.21", 0.275", 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 5 mm, 5.7 mm, 8.4 mm	5° to 395°	Black	3	9543N32	000000	7625A16	0000

EPDM Rubber

O-Ring Kits						Replacement Adhesives (0.1 fl. oz)
Wd.	Temperature Range, °F	Color	Lg., ft.		Each		Each
Round—Durometer 60A (Soft)
0.07", 0.103", 0.139", 0.21", 0.275"	-40° to 250°	Black	7	9543N35	000000	74555A44	00000
1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 5 mm, 5.7 mm, 8.4 mm	-40° to 250°	Black	3	9543N36	00000	74555A44	0000
0.07", 0.103", 0.139", 0.21", 0.275", 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 5 mm, 5.7 mm, 8.4 mm	-40° to 250°	Black	3	9543N37	000000	74555A44	0000
Round—Durometer 70A (Medium)
0.07", 0.103", 0.139", 0.21", 0.275"	-40° to 250°	Black	7	13105K41	00000	74555A44	0000
1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 5 mm, 5.7 mm, 8.4 mm	-40° to 250°	Black	3	9543N33	00000	74555A44	0000
0.07", 0.103", 0.139", 0.21", 0.275", 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 5 mm, 5.7 mm, 8.4 mm	-40° to 250°	Black	3	9543N34	00000	74555A44	0000
Round—Durometer 90A (Hard)
0.07", 0.103", 0.139", 0.21", 0.275"	-40° to 250°	Black	7	9543N38	00000	74555A44	0000
1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 5 mm, 5.7 mm, 8.4 mm	-40° to 250°	Black	3	9543N39	00000	74555A44	0000
0.07", 0.103", 0.139", 0.21", 0.275", 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 5 mm, 5.7 mm, 8.4 mm	-40° to 250°	Black	3	9543N41	000000	74555A44	0000
Square—Durometer 70A (Medium)
0.07", 0.103", 0.139", 0.21", 0.275"	-40° to 250°	Black	7	9543N42	00000	74555A44	0000
1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 5 mm, 5.7 mm, 8.4 mm	-40° to 250°	Black	3	9543N43	00000	74555A44	0000
0.07", 0.103", 0.139", 0.21", 0.275", 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 5 mm, 5.7 mm, 8.4 mm	-40° to 250°	Black	3	9543N44	000000	74555A44	0000

Replacement Splicing Jigs

For Cord Shape		Each
Round	9462K2	00000
Square	9543N45	0000

Cutting Tools

		Each
	9450K108	000000

Make-Your-Own O-Ring Kits

All the tools you need to make whatever O-ring size you need right away—just add cord stock. These kits can be used with Buna-N, Viton® fluoroelastomer, or EPDM cord stock.

O-Ring Kits					Replacement Adhesives (0.1 fl. oz)		Replacement Splicing Jigs		Cuttting Tools
For Use On	For Cord Stock Wd.	Includes		Each		Each		Each		Each
Buna-N Rubber, Viton® Fluoroelastomer Rubber	0.07", 0.103", 0.139", 0.21", 0.275", 0.313", 0.375", 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 5 mm, 5.7 mm, 8.4 mm	Adhesive, Razor Blade, Splicing Jig	9262N11	000000	7625A16	00000	9462K2	00000	9450K108	000000
EPDM Rubber	0.07", 0.103", 0.139", 0.21", 0.275", 0.313", 0.375", 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 5 mm, 5.7 mm, 8.4 mm	Adhesive, Razor Blade, Splicing Jig	9262N12	00000	74555A44	0000	9462K2	0000	9450K108	00000

Make-Your-Own Hot-Bonding O-Ring Kits

Combine heat and adhesive to create O-rings with stronger, more flexible bonds than those made with adhesive alone. These kits include all the tools you need for custom O-rings—just add cord stock. All include adhesive for silicone; adhesive for other materials is sold separately.

System of Measurement	For Cord Stock Wd.	Includes	For Use On		Each
Inch	0.07", 0.103", 0.139", 0.21", 0.275", 0.312", 0.375", 0.5"	O-Ring Vulcanizer 4" × 4" sheet of silicone adhesive for bonding silicone cord stock Gloves Cutting Tool L-Key	EPDM Rubber, Silicone Rubber, Buna-N Rubber, Viton® Fluoroelastomer Rubber, Neoprene Rubber	9450K105	000000000
Metric	1.6 mm, 2.4 mm, 3 mm, 3.5 mm, 4 mm, 5 mm, 5.7 mm, 8.4 mm	O-Ring Vulcanizer 4" × 4" sheet of silicone adhesive for bonding silicone cord stock Gloves Cutting Tool L-Key	EPDM Rubber, Silicone Rubber, Buna-N Rubber, Viton® Fluoroelastomer Rubber, Neoprene Rubber	9450K106	00000000
Inch/Metric	0.07", 0.103", 0.139", 0.21", 0.275", 0.312", 0.375", 0.5", 1.6 mm, 2.4 mm, 3 mm, 3.5 mm, 4 mm, 5 mm, 5.7 mm, 8.4 mm	O-Ring Vulcanizer 4" × 4" sheet of silicone adhesive for bonding silicone cord stock Gloves Cutting Tool L-Key	EPDM Rubber, Silicone Rubber, Buna-N Rubber, Viton® Fluoroelastomer Rubber, Neoprene Rubber	9450K107	00000000

Replacement Cutting Tool	9450K108	Each	000000
Adhesive for Viton® Fluoroelastomer Rubber (8 fl. oz.)	9450K102	Each	00000
Adhesive for EPDM Rubber (16 fl. oz.)	9450K103	Each	00000
Replacement Adhesive for Silicone Rubber (4" × 4" Sheet)	9450K34	Each	00000
Adhesive for Neoprene Rubber (16 fl. oz.)	9450K104	Each	00000
Adhesive for Buna-N Rubber (16 fl. oz.)	9450K101	Each	00000