Oblong Grommets | McMaster-Carr

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77 Products

High-Temperature EPDM Boiler Gaskets

These EPDM gaskets stand up to steam. Use them to seal closures on industrial boilers.

	Inside
	Ht.	Wd.	Gasket Wd.	Thk.	Max. Pressure, psi	Temp. Range, ° F	Hardness	Hardness Rating	Color		Each
Oval



		2 1/2"	3 1/2"	1/2"	1/4"	180	-55 to 380	Durometer 80A	Hard	Black	1923K11	00000


		2 3/4"	3 3/4"	1/2"	1/4"	180	-55 to 380	Durometer 80A	Hard	Black	1923K13	0000
		2 3/4"	3 3/4"	5/8"	1/4"	180	-55 to 380	Durometer 80A	Hard	Black	1923K12	0000
		3"	4"	1/2"	1/4"	180	-55 to 380	Durometer 80A	Hard	Black	1923K61	0000
		3"	4"	5/8"	1/4"	180	-55 to 380	Durometer 80A	Hard	Black	1923K22	0000
		3 1/4"	4 1/4"	1/2"	1/4"	180	-55 to 380	Durometer 80A	Hard	Black	1923K16	0000
		3 1/4"	4 1/2"	1/2"	1/4"	180	-55 to 380	Durometer 80A	Hard	Black	1923K17	0000
		3 1/4"	5"	9/16"	1/4"	180	-55 to 380	Durometer 80A	Hard	Black	1923K18	0000
		3 1/2"	4 1/2"	1/2"	1/4"	180	-55 to 380	Durometer 80A	Hard	Black	1923K25	0000
		3 1/2"	4 1/2"	5/8"	1/4"	180	-55 to 380	Durometer 80A	Hard	Black	1923K26	0000
		4"	5"	5/8"	1/4"	180	-55 to 380	Durometer 80A	Hard	Black	1923K19	0000


		4"	6"	5/8"	1/4"	180	-55 to 380	Durometer 80A	Hard	Black	1923K81	00000
		4"	6"	3/4"	1/4"	180	-55 to 380	Durometer 80A	Hard	Black	1923K62	00000
		6"	8"	3/4"	1/4"	180	-55 to 380	Durometer 80A	Hard	Black	1923K82	00000
		10"	14"	1 1/2"	1/4"	180	-55 to 380	Durometer 80A	Hard	Black	1923K83	00000
		10 1/2"	14 1/2"	1 3/8"	1/4"	180	-55 to 380	Durometer 80A	Hard	Black	1923K63	00000
		11"	15"	1"	1/4"	180	-55 to 380	Durometer 80A	Hard	Black	1923K84	00000
		11"	15"	1 1/4"	1/4"	180	-55 to 380	Durometer 80A	Hard	Black	1923K64	00000
		11"	15"	1 3/8"	1/4"	180	-55 to 380	Durometer 80A	Hard	Black	1923K85	00000
		11 3/4"	15 3/4"	1 3/8"	1/4"	180	-55 to 380	Durometer 80A	Hard	Black	1923K15	00000
		11 3/4"	15 3/4"	1 3/4"	1/4"	180	-55 to 380	Durometer 80A	Hard	Black	1923K97	00000


		12"	16"	1"	1/4"	180	-55 to 380	Durometer 80A	Hard	Black	1923K86	00000
		12"	16"	1 1/4"	1/4"	180	-55 to 380	Durometer 80A	Hard	Black	1923K65	00000
		12"	16"	1 3/8"	1/4"	180	-55 to 380	Durometer 80A	Hard	Black	1923K87	00000
		12"	16"	1 1/2"	1/4"	180	-55 to 380	Durometer 80A	Hard	Black	1923K14	00000
		12 1/2"	16 1/2"	1"	1/4"	180	-55 to 380	Durometer 80A	Hard	Black	1923K88	00000
		14"	18"	1 1/2"	1/4"	180	-55 to 380	Durometer 80A	Hard	Black	1923K27	00000


		Oblong



				2 1/4"	3 1/4"	1/2"	1/4"	180	-55 to 380	Durometer 80A	Hard	Black	1923K71	0000


				2 1/2"	3 1/2"	1/2"	1/4"	180	-55 to 380	Durometer 80A	Hard	Black	1923K89	0000
				2 3/4"	3 1/2"	1/2"	1/4"	180	-55 to 380	Durometer 80A	Hard	Black	1923K91	0000
				2 3/4"	3 3/4"	1/2"	1/4"	180	-55 to 380	Durometer 80A	Hard	Black	1923K92	0000
				2 3/4"	4 1/2"	1/2"	1/4"	180	-55 to 380	Durometer 80A	Hard	Black	1923K93	0000
				3"	4"	1/2"	1/4"	180	-55 to 380	Durometer 80A	Hard	Black	1923K28	0000
				3"	4 1/2"	9/16"	1/4"	180	-55 to 380	Durometer 80A	Hard	Black	1923K72	0000
				3 1/4"	4 1/2"	1/2"	1/4"	180	-55 to 380	Durometer 80A	Hard	Black	1923K24	0000
				3 1/4"	4 1/2"	9/16"	1/4"	180	-55 to 380	Durometer 80A	Hard	Black	1923K94	0000
				3 1/2"	4 1/2"	9/16"	1/4"	180	-55 to 380	Durometer 80A	Hard	Black	1923K95	0000
				4"	6"	5/8"	1/4"	180	-55 to 380	Durometer 80A	Hard	Black	1923K73	00000


				11"	15"	1 1/4"	1/4"	180	-55 to 380	Durometer 80A	Hard	Black	1923K74	00000
				12"	16"	1 1/2"	1/4"	180	-55 to 380	Durometer 80A	Hard	Black	1923K75	00000
				14"	18"	1 1/4"	1/4"	180	-55 to 380	Durometer 80A	Hard	Black	1923K96	000000

Tank Car Manway Gaskets

Create a tight seal between the nozzle and lid of tank car manways.

For Covers—Flat Profile

Gaskets for covers fit into the groove of manway lids.

Flat-profile nozzle gaskets have metal mounting tabs that secure the gasket to the nozzle.

ePTFE— ePTFE gaskets are chemically inert, except to molten alkali metal and fluorine compounds. They have a corrugated stainless steel insert, so they compress without deforming at lower bolt loads than rubber. This means they create a tighter seal without causing bolts to loosen.

	ID	OD	Thk.	Max. Pressure, psi	Temp. Range, ° F	Hardness	Color	Insert Material		Each
ePTFE



	20"	19 3/8"	21 3/4"	1/8"	300	-330 to 400	Not Rated	White	316 Stainless Steel	4532N12	0000000


	20"	19 1/2"	21 1/2"	1/8"	300	-330 to 400	Not Rated	White	316 Stainless Steel	4532N13	000000
	20"	19 1/2"	21 5/8"	1/8"	300	-330 to 400	Not Rated	White	316 Stainless Steel	4532N11	000000

For Nozzles—Flat Profile

Flat-profile nozzle gaskets have metal mounting tabs that secure the gasket to the nozzle.

	ID	OD	Thk.	Max. Pressure, psi	Temp. Range, ° F	Hardness	Color	Insert Material	Features		Each
ePTFE



	20"	20"	21 1/4"	1/8"	300	-330 to 400	Not Rated	White	316 Stainless Steel	Mounting Tabs	4532N14	0000000

For Nozzles—U-Profile

U-profile nozzle gaskets have a lip that wraps around the nozzle, securing them in place.

Buna-N—Buna-N rubber gaskets resist oil, water, and salts.

EPDM—EPDM gaskets resist water, steam, and salt water.

Neoprene—Neoprene gaskets are FDA compliant for use with food.

	ID	OD	Thk.	Max. Pressure, psi	Temp. Range, ° F	Hardness	Hardness Rating	Color	Food Industry Std.		Each
Buna-N



	20"	19 3/4"	21 7/16"	1/8"	165	-65 to 270	Durometer 75A	Hard	Black	—	4532N15	0000000


	EPDM



			20"	19 3/4"	21 7/16"	1/8"	165	-50 to 300	Durometer 80A	Hard	Black	—	4532N16	000000


			Neoprene



					20"	19 3/4"	21 7/16"	1/8"	165	-25 to 250	Durometer 65A	Medium Hard	White	FDA Compliant 21 CFR 177.2600	4532N17	000000


					Fluoroelastomer



							20"	19 3/4"	21 15/16"	1/8"	165	-20 to 400	Durometer 80A	Hard	Black	—	4532N18	000000

Cut-to-Size Sealing Grommets


Style 1	Style 2	Style 3

Cut these grommets to match your wire, cable, or cord diameter, or leave them uncut to cover unused holes. The center hole forms a tight seal to keep out debris and splashing liquid, and the aluminum flange screws onto the surface so moisture can’t leak through.

Style 1

Oil-Resistant Buna-N—These resist oil and fuels better than other rubber grommets. Use them on frequently lubricated machinery and oily equipment, such as engines and pumps.

							Mounting
	ID	Flange Dia.	Overall Ht.	Temp., ° F	For Use Outdoors	Color	No. of Holes	Fasteners Included	Hole Dia.		Each
Oil-Resistant Buna-N with Aluminum Flange



		1/64" to 3/4"	1 1/2"	0.16"	-20 to 220	Yes	Black	4	No	1/8"	9280K111	000000


		1/64" to 1"	2"	0.16"	-20 to 220	Yes	Black	4	No	1/8"	9280K25	00000
		1/64" to 1 1/2"	3"	0.16"	-20 to 220	Yes	Black	4	No	1/8"	9280K26	00000
		1/64" to 2"	4"	0.1"	-20 to 220	Yes	Black	4	No	1/8"	9280K27	00000
		1/64" to 4"	6"	0.19"	-20 to 220	Yes	Black	4	No	1/8"	9280K126	00000

Style 2

Oil-Resistant Buna-N—These resist oil and fuels better than other rubber grommets. Use them on frequently lubricated machinery and oily equipment, such as engines and pumps.

		Flange						Mounting
	ID	Lg.	Wd.	Overall Ht.	Temp., ° F	For Use Outdoors	Color	No. of Holes	Fasteners Included	Hole Dia.		Each
Oil-Resistant Buna-N with Aluminum Flange



		1/64" to 2"	5 1/4"	3"	0.16"	-20 to 220	Yes	Black	8	No	1/8"	9280K127	000000

Style 3

These grommets flex to move with the wire, so they’re good for robots, hydraulic lifts, and other machinery with repetitive movement.

Oil-Resistant Buna-N—These resist oil and fuels better than other rubber grommets. Use them on frequently lubricated machinery and oily equipment, such as engines and pumps.

							Mounting
	ID	Flange Dia.	Overall Ht.	Temp., ° F	For Use Outdoors	Color	No. of Holes	Fasteners Included	Hole Dia.		Each
Oil-Resistant Buna-N with Aluminum Flange



		1/64" to 5/8"	1 1/2"	0.65"	-20 to 220	Yes	Black	4	No	1/8"	9280K61	000000


		1/64" to 1 1/8"	2"	1.5"	-20 to 220	Yes	Black	4	No	1/8"	9280K62	00000

Sealing Grommets


Style 1	Style 2	Style 3	Style 4

The center hole seals around wire, cable, and cords to keep out debris and splashing liquid. Screw the flange onto the surface so moisture can’t leak through your panel.

Style 1

Oil-Resistant Buna-N—These resist oil and fuels better than other rubber grommets. Use them on frequently lubricated machinery and oily equipment, such as engines and pumps.

							Mounting
	ID	Flange Dia.	Overall Ht.	Temp., ° F	For Use Outdoors	Color	No. of Holes	Fasteners Included	Hole Dia.		Each
Oil-Resistant Buna-N with Aluminum Flange



		0.125"	3"	0.16"	-20 to 220	Yes	Black	4	No	1/8"	9280K112	000000


		0.25"	3"	0.16"	-20 to 220	Yes	Black	4	No	1/8"	9280K113	00000
		0.375"	3"	0.16"	-20 to 220	Yes	Black	4	No	1/8"	9280K114	00000
		0.5"	3"	0.16"	-20 to 220	Yes	Black	4	No	1/8"	9280K115	00000
		0.625"	3"	0.16"	-20 to 220	Yes	Black	4	No	1/8"	9280K116	00000
		0.75"	3"	0.16"	-20 to 220	Yes	Black	4	No	1/8"	9280K117	00000
		1"	3"	0.16"	-20 to 220	Yes	Black	4	No	1/8"	9280K118	00000
		1"	4"	0.1"	-20 to 220	Yes	Black	4	No	1/8"	9280K122	00000
		1.125"	3"	0.16"	-20 to 220	Yes	Black	4	No	1/8"	9280K119	00000
		1.25"	3"	0.16"	-20 to 220	Yes	Black	4	No	1/8"	9280K121	00000
		1.5"	4 1/2"	0.29"	-20 to 220	Yes	Black	6	No	1/8"	9280K124	00000


		1.797"	4"	0.1"	-20 to 220	Yes	Black	4	No	1/8"	9280K123	00000
		2.110"	4 1/2"	0.29"	-20 to 220	Yes	Black	6	No	1/8"	9280K125	00000

Style 2

Oil-Resistant Buna-N—These resist oil and fuels better than other rubber grommets. Use them on frequently lubricated machinery and oily equipment, such as engines and pumps.

		Flange						Mounting
	ID	Lg.	Wd.	Overall Ht.	Temp., ° F	For Use Outdoors	Color	No. of Holes	Fasteners Included	Hole Dia.		Each
Oil-Resistant Buna-N with Aluminum Flange



		0.25"	5 1/4"	3"	0.16"	-20 to 220	Yes	Black	8	No	1/8"	9280K129	000000


		1"	5 3/4"	3"	0.16"	-20 to 220	Yes	Black	8	No	1/8"	9280K143	00000

Style 3

These grommets flex to move with the wire, so they’re good for robots, hydraulic lifts, and other machinery with repetitive movement.

Oil-Resistant Buna-N—These resist oil and fuels better than other rubber grommets. Use them on frequently lubricated machinery and oily equipment, such as engines and pumps.

							Mounting
	ID	Flange Dia.	Overall Ht.	Temp., ° F	For Use Outdoors	Color	No. of Holes	Fasteners Included	Hole Dia.		Each
Oil-Resistant Buna-N with Aluminum Flange



		13/32"	2"	1.15"	-20 to 220	Yes	Black	4	No	1/8"	9280K144	000000

Style 4

The domed construction makes room for a large fitting or bundle of wires behind the hole.

Oil-Resistant Buna-N—These resist oil and fuels better than other rubber grommets. Use them on frequently lubricated machinery and oily equipment, such as engines and pumps.

							Mounting
	ID	Flange Dia.	Overall Ht.	Temp., ° F	For Use Outdoors	Color	No. of Holes	Fasteners Included	Hole Dia.		Each
Oil-Resistant Buna-N with Aluminum Flange



		13/32"	3"	1.35"	-20 to 220	Yes	Black	4	No	1/8"	9280K145	000000

High-Temperature Rubber-Coated Fiberglass Boiler Gaskets

Made of woven fiberglass that is reinforced with brass wire and coated with rubber, these gaskets lay flat and maintain their shape when compressed. They’re built to handle hot environments and fit closures on industrial boilers.

	Inside
	Ht.	Wd.	Gasket Wd.	Thk.	Max. Pressure, psi	Temp. Range, ° F	Color		Each
Oval



		10"	14"	1 1/4"	1/4"	180	-20 to 400	White	1881K112	000000


		11"	15"	1 1/4"	1/4"	180	-20 to 400	White	1881K118	00000
		12"	16"	1 1/4"	1/4"	180	-20 to 400	White	1881K123	00000