Vacuum Plugs | McMaster-Carr

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152 Products

Round Caps

Cover pipe and rods to keep dust and coatings out of threads. These caps also prevent dents and nicks during shipping and storage. Push them onto just about any round object.

Plastic

High-Temperature

Vinyl Plastic

Blend

High-Temperature Vinyl Plastic Blend—Good for most paint baking and electrocoating processes, these caps are a lower-cost alternative to silicone rubber. They're flexible to conform for a tight fit.

					Black
	For OD	Inside Ht.	Flexibility	Max. Temp., ° F	Pkg. Qty.		Pkg.
High-Temperature Vinyl Plastic Blend



		1/16" to 1/8"	1/2"	Flexible	440	100	84735K11	000000


		1/16" to 1/8"	3/4"	Flexible	440	100	84735K74	00000
		1/8" to 3/16"	1/2"	Flexible	440	100	84735K12	00000
		1/8" to 3/16"	3/4"	Flexible	440	100	84735K75	00000
		1/8" to 3/16"	1"	Flexible	440	100	84735K86	00000
		1/8" to 3/16"	1 1/2"	Flexible	440	100	84735K97	00000
		3/16" to 1/4"	1/2"	Flexible	440	100	84735K13	00000
		3/16" to 1/4"	3/4"	Flexible	440	100	84735K76	00000
		3/16" to 1/4"	1"	Flexible	440	100	84735K87	00000
		3/16" to 1/4"	1 1/2"	Flexible	440	100	84735K98	00000
		1/4" to 5/16"	1/2"	Flexible	440	100	84735K14	00000


		1/4" to 5/16"	3/4"	Flexible	440	100	84735K77	00000
		1/4" to 5/16"	1"	Flexible	440	100	84735K88	00000
		1/4" to 5/16"	1 1/2"	Flexible	440	100	84735K99	00000
		5/16" to 3/8"	1/2"	Flexible	440	100	84735K15	00000
		5/16" to 3/8"	3/4"	Flexible	440	100	84735K78	00000
		5/16" to 3/8"	1"	Flexible	440	100	84735K89	00000
		5/16" to 3/8"	1 1/2"	Flexible	440	100	84735K111	00000
		3/8" to 7/16"	1/2"	Flexible	440	100	84735K16	00000
		3/8" to 7/16"	3/4"	Flexible	440	100	84735K79	00000
		3/8" to 7/16"	1"	Flexible	440	100	84735K91	00000


		3/8" to 7/16"	1 1/2"	Flexible	440	100	84735K112	00000
		1/2" to 9/16"	1/2"	Flexible	440	100	84735K17	00000
		1/2" to 9/16"	3/4"	Flexible	440	100	84735K81	00000
		1/2" to 9/16"	1"	Flexible	440	100	84735K92	00000
		1/2" to 9/16"	1 1/2"	Flexible	440	100	84735K113	00000
		5/8" to 11/16"	1/2"	Flexible	440	100	84735K18	00000
		5/8" to 11/16"	3/4"	Flexible	440	100	84735K82	00000
		5/8" to 11/16"	1"	Flexible	440	100	84735K93	00000
		5/8" to 11/16"	1 1/2"	Flexible	440	50	84735K114	00000
		3/4" to 13/16"	1/2"	Flexible	440	100	84735K71	00000


		3/4" to 13/16"	3/4"	Flexible	440	50	84735K83	00000
		3/4" to 13/16"	1"	Flexible	440	100	84735K94	00000
		3/4" to 13/16"	1 1/2"	Flexible	440	50	84735K115	00000
		7/8" to 15/16"	1/2"	Flexible	440	100	84735K72	00000
		7/8" to 15/16"	3/4"	Flexible	440	50	84735K84	00000
		7/8" to 15/16"	1"	Flexible	440	50	84735K95	00000
		7/8" to 15/16"	1 1/2"	Flexible	440	50	84735K116	00000
		1" to 1 1/16"	1/2"	Flexible	440	100	84735K73	00000
		1" to 1 1/16"	3/4"	Flexible	440	50	84735K85	00000
		1" to 1 1/16"	1"	Flexible	440	50	84735K96	00000


		1" to 1 1/16"	1 1/2"	Flexible	440	50	84735K117	00000

Rubber

Chemical-Resistant EPDM—These caps won't swell or crack when masking parts during plating, anodizing, and other chemical finishing. They're flexible and conform for a tight fit.

High-Temperature Silicone Rubber—Withstand multiple passes when paint baking, powder coating, and electroplating. Caps are flexible to conform to parts.

	For OD	Inside Ht.	Flexibility	Max. Temp., ° F	Color	Pkg. Qty.		Pkg.
Chemical-Resistant EPDM



		0.02"	1/2"	Flexible	200	Black	100	6448K117	000000


		0.034"	1/2"	Flexible	200	Black	100	6448K118	00000
		3/64"	3/4"	Flexible	200	Black	100	6448K19	00000
		1/16"	3/4"	Flexible	200	Black	100	6448K119	00000
		5/64"	1"	Flexible	200	Black	50	6448K51	0000
		3/32"	3/4"	Flexible	200	Black	50	6448K52	0000
		0.1"	1/2"	Flexible	200	Black	50	6448K21	0000
		7/64"	3/4"	Flexible	200	Black	50	6448K22	0000
		1/8"	1/2"	Flexible	200	Black	50	6448K138	0000
		1/8"	1"	Flexible	200	Black	50	6448K72	0000
		9/64"	1/2"	Flexible	200	Black	50	6448K159	0000


		9/64"	1"	Flexible	200	Black	50	6448K73	0000
		5/32"	1"	Flexible	200	Black	50	6448K74	0000
		11/64"	1/2"	Flexible	200	Black	50	6448K205	0000
		11/64"	1"	Flexible	200	Black	50	6448K75	00000
		3/16"	1/2"	Flexible	200	Black	50	6448K208	0000
		3/16"	1"	Flexible	200	Black	50	6448K76	00000
		7/32"	1"	Flexible	200	Black	50	6448K57	0000
		0.223"	1"	Flexible	200	Black	50	6448K23	0000
		15/64"	1"	Flexible	200	Black	50	6448K24	00000
		15/64"	1 1/2"	Flexible	200	Black	50	6448K287	00000


		1/4"	1"	Flexible	200	Black	50	6448K77	00000
		9/32"	1"	Flexible	200	Black	50	6448K97	00000
		19/64"	1"	Flexible	200	Black	50	6448K343	00000
		19/64"	1 1/2"	Flexible	200	Black	50	6448K517	00000
		5/16"	1"	Flexible	200	Black	50	6448K78	00000
		11/32"	1"	Flexible	200	Black	50	6448K98	00000
		0.355"	1 1/2"	Flexible	200	Black	50	6448K25	00000
		3/8"	1"	Flexible	200	Black	25	6448K79	0000
		3/8"	1 1/2"	Flexible	200	Black	25	6448K656	00000
		13/32"	1"	Flexible	200	Black	25	6448K26	0000


		7/16"	1"	Flexible	200	Black	25	6448K81	00000
		0.456"	1 1/2"	Flexible	200	Black	25	6448K27	0000
		15/32"	1"	Flexible	200	Black	10	6448K28	0000
		1/2"	1 1/2"	Flexible	200	Black	25	6448K82	00000
		0.535"	1 1/2"	Flexible	200	Black	50	6448K29	00000
		9/16"	1 1/2"	Flexible	200	Black	25	6448K83	00000
		5/8"	1 1/2"	Flexible	200	Black	50	6448K31	00000
		11/16"	1 1/2"	Flexible	200	Black	10	6448K32	0000
		3/4"	1 1/2"	Flexible	200	Black	10	6448K84	0000
		13/16"	1 1/2"	Flexible	200	Black	25	6448K33	00000


		7/8"	1 1/2"	Flexible	200	Black	10	6448K85	0000
		15/16"	1 1/2"	Flexible	200	Black	10	6448K34	0000
		1"	1 1/2"	Flexible	200	Black	10	6448K86	0000
		1 1/16"	1 1/2"	Flexible	200	Black	10	6448K35	0000
		1 1/8"	1 1/2"	Flexible	200	Black	5	6448K36	0000
		1 3/16"	1 1/2"	Flexible	200	Black	5	6448K37	0000
		1 1/4"	1 1/2"	Flexible	200	Black	5	6448K38	0000
		1 3/8"	1 1/2"	Flexible	200	Black	5	6448K99	0000
		1 1/2"	1 1/2"	Flexible	200	Black	5	6448K39	0000
		1 5/8"	1 1/2"	Flexible	200	Black	5	6448K15	0000

1 3/4"	2"	Flexible	200	Black	5	6448K911	0000
1 7/8"	2"	Flexible	200	Black	5	6448K921	00000
2"	2"	Flexible	200	Black	5	6448K112	00000
2 1/2"	1 1/2"	Flexible	200	Black	5	6448K113	00000
2 3/4"	1 1/2"	Flexible	200	Black	5	6448K114	00000
3 1/2"	1 1/2"	Flexible	200	Black	1	6448K115	0000
4"	1 3/4"	Flexible	200	Black	1	6448K116	0000

High-Temperature Silicone Rubber



		0.02"	1/2"	Flexible	570	Orange	100	92805K1	00000


		0.034"	1/2"	Flexible	570	Orange	100	92805K2	00000
		3/64"	3/4"	Flexible	570	Orange	100	92805K3	00000
		1/16"	3/4"	Flexible	570	Orange	100	92805K4	00000
		5/64"	1"	Flexible	570	Orange	100	92805K5	00000
		3/32"	3/4"	Flexible	570	Orange	100	92805K31	00000
		0.1"	1/2"	Flexible	570	Orange	100	92805K32	00000
		7/64"	3/4"	Flexible	570	Orange	100	92805K6	00000
		1/8"	1"	Flexible	570	Orange	25	92805K11	0000
		9/64"	1"	Flexible	570	Orange	100	92805K7	00000
		5/32"	1/2"	Flexible	570	Orange	100	92805K8	00000


		11/64"	1"	Flexible	570	Orange	25	92805K12	0000
		3/16"	1"	Flexible	570	Orange	100	92805K33	00000
		7/32"	1"	Flexible	570	Orange	50	92805K34	00000
		15/64"	1 1/2"	Flexible	570	Orange	10	92805K13	0000
		1/4"	1"	Flexible	570	Orange	10	92805K14	0000
		9/32"	1"	Flexible	570	Orange	100	92805K35	00000
		0.295"	1 1/2"	Flexible	570	Orange	10	92805K15	0000
		5/16"	1"	Flexible	570	Orange	50	92805K9	00000
		0.34"	1"	Flexible	570	Orange	50	92805K36	00000
		0.355"	1 1/2"	Flexible	570	Orange	10	92805K16	0000


		3/8"	1 1/2"	Flexible	570	Orange	5	92805K17	0000
		13/32"	1"	Flexible	570	Orange	50	92805K91	00000
		7/16"	1"	Flexible	570	Orange	25	92805K37	00000
		15/32"	1"	Flexible	570	Orange	25	92805K92	00000
		0.48"	1 1/2"	Flexible	570	Orange	10	92805K18	0000
		1/2"	1 1/2"	Flexible	570	Orange	5	92805K19	0000
		0.535"	1 1/2"	Flexible	570	Orange	10	92805K21	0000
		9/16"	1 1/2"	Flexible	570	Orange	25	92805K38	00000
		0.6"	1 1/2"	Flexible	570	Orange	10	92805K22	0000
		5/8"	1 1/2"	Flexible	570	Orange	5	92805K23	0000


		11/16"	1 1/2"	Flexible	570	Orange	25	92805K39	00000
		3/4"	1 1/2"	Flexible	570	Orange	5	92805K24	0000
		13/16"	1 1/2"	Flexible	570	Orange	5	92805K25	0000
		7/8"	1 1/2"	Flexible	570	Orange	5	92805K26	0000
		15/16"	1 1/2"	Flexible	570	Orange	10	92805K48	00000
		31/32"	1 1/2"	Flexible	570	Orange	5	92805K27	0000
		1"	1 1/2"	Flexible	570	Orange	5	92805K28	0000
		1 1/16"	1 1/2"	Flexible	570	Orange	10	92805K41	00000
		1 1/8"	1 1/2"	Flexible	570	Orange	10	92805K42	00000
		1 3/16"	1 1/2"	Flexible	570	Orange	10	92805K43	00000


		1 1/4"	1 1/2"	Flexible	570	Orange	10	92805K93	00000
		1 3/8"	1 1/2"	Flexible	570	Orange	10	92805K94	00000
		1 1/2"	1 1/2"	Flexible	570	Orange	10	92805K44	00000
		1 5/8"	1 1/2"	Flexible	570	Orange	5	92805K95	00000
		1 3/4"	2"	Flexible	570	Orange	5	92805K45	00000
		1 7/8"	2"	Flexible	570	Orange	5	92805K46	00000
		2"	2"	Flexible	570	Orange	5	92805K47	00000
		2 1/2"	1 1/2"	Flexible	570	Orange	5	92805K96	00000
		2 3/4"	1 1/2"	Flexible	570	Orange	5	92805K97	00000
		3 1/2"	1 1/2"	Flexible	570	Orange	1	92805K98	0000

4"	1 3/4"	Flexible	570	Orange	1	92805K99	00000