1 1/4" Gaskets | McMaster-Carr

Fit these gaskets over connectors that plug in to your enclosure to absorb interference and prevent signal problems. They block electromagnetic interference (EMI) and radio frequency interference (RFI), which cause flickering displays and inaccurate readings.

Silicone gaskets are good for high temperature and wet environments because they seal out moisture. Most are sized to fit specific mil. spec. connector shell sizes.

Interference reduction at frequency, also known as attenuation, describes how much EMI and RFI is blocked. These gaskets block most interference; use them for general purpose shielding as well as protecting sensitive or precision components.

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

Panel-Mount Mil. Spec. Connectors

Panel-Mount Mil. Spec. Connector

										Mounting Holes
For Connector Shell Size	ID	Length	Width	Thickness	Interference Reduction @ Frequency	Backing Type	Temperature Range, °F	Color	For Use Outdoors	Diameter	Number of	Specifications Met		Each
Silicone Rubber
15, 16	1 1/8"	1 1/4"	1 1/4"	1/32"	100 dB @ 1 GHz	Plain	-65° to 300°	Beige	Yes	0.16"	4	MIL-DTL-83528	0000000	000000
16	1 1/16"	1 1/4"	1 1/4"	1/32"	100 dB @ 1 GHz	Plain	-65° to 300°	Beige	Yes	0.13"	4	MIL-DTL-83528	0000000	00000

Multipurpose Neoprene Rubber Tubes

Jackets, seals, and insulation are just a few of the many uses for rubber tubes. Neoprene is also called chloroprene.

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

Square Tubes

Color: Black
Temperature Range: -20° to 200° F
Tensile Strength: 1,200 psi
For Use Outdoors: No

					6" Lg.		12" Lg.		36" Lg.
ID	Wall Thick.	Wd.	Ht.	Durometer		Each		Each		Each
5/8"	5/16"	1 1/4"	1 1/4"	75A (Hard)	0000000	000000	0000000	000000	0000000	000000

Oil-Resistant Buna-N Rubber Sheets, Bars, and Strips

Buna-N rubber is also known as nitrile, NBR, and acrylonitrile butadiene. It resists fuel oil, hydraulic oil, ethylene glycol, and grease.

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

Square Bars

Color: Black
Temperature Range: -20° to 225° F
Tensile Strength: 1,200 psi
For Use Outdoors: No

				12" Lg.		36" Lg.
Thick.	Thick. Tolerance	Wd.	Durometer		Each		Each
1 1/4"	-0.079" to +0.079"	1 1/4"	75A (Hard)	00000000	000000	00000000	000000

Oil-Resistant Buna-N Rubber Tubes

Applications for these tubes include jackets, seals, and insulation. Buna-N is also known as nitrile, NBR, and acrylonitrile butadiene. It resists fuel oil, hydraulic oil, ethylene glycol, and grease.

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

Square Tubes

Color: Black
Temperature Range: -20° to 225° F
Tensile Strength: 1,200 psi
For Use Outdoors: No

				12" Lg.		36" Lg.
ID	Wd.	Ht.	Durometer		Each		Each
5/8"	1 1/4"	1 1/4"	75A (Hard)	00000000	000000	00000000	000000

High-Temperature Rope Edge Seals

A tighter braid makes these fiberglass seals more durable than High-Temperature Ultra-Conformable Rope Edge Seals. They’re flexible and will conform to uneven surfaces. Push them into the groove that’s commonly built into oven doors, furnaces, and tanks. They resist bleach, solvents, and most acids (do not use with hydrofluoric acid, hot phosphoric acid, and wet hydrogen chloride).

						Per Ft.
Wd.	Max. Temp., °F	For Use Outdoors	Color	Lengths, ft.		1-49	50-Up
Fiberglass Fiber—Plain Back
1 1/4"	1000°	No	White	1, 5, 10, 25	0000000	00000	00000

High-Temperature Ultra-Conformable Rope Edge Seals

These loosely knitted fiberglass seals are more flexible, compressible, and conformable than High-Temperature Rope Edge Seals. The looser construction also makes them more likely to absorb liquids. Push them into the groove that’s commonly built into oven doors, furnaces, and tanks. They resist bleach, solvents, and most acids (do not use with hydrofluoric acid, hot phosphoric acid, and wet hydrogen chloride).

						Per Ft.
Wd.	Max. Temp., °F	For Use Outdoors	Color	Lengths, ft.		1-49	50-Up
Fiberglass Fiber—Plain Back
1 1/4"	1000°	No	White	1, 5, 10, 25	0000000	00000	00000

Square-Profile Ultra High-Temperature Rope Edge Seals

The flat edges on these square-profile seals provide more sealing surface than round-profile seals. They’re made of 98% silica for excellent temperature resistance. They’re flexible and will conform to uneven surfaces. Push them into the groove that’s commonly built into oven doors, furnaces, and tanks. They resist water, salts, and diluted acids.

							Per Ft.
Wd.	Thick.	Temp. Range, °F	For Use Outdoors	Color	Lengths, ft.		1-24	25-Up
Silica Fiber—Plain Back
1 1/4"	1 1/4"	-40° to 2300°	No	White	1, 5, 10, 25, 30	00000000	000000	000000

Light Duty Blended EPDM Foam Sheets and Strips

EPDM is blended with neoprene and SBR to create a general-purpose foam that offers good resistance to water and wear. This foam has closed-cell construction, which restricts water, air, and gases from being absorbed.

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

Adhesive-Back Strips with Smooth Texture

Color: Black
Temperature Range: -40° to 250° F
Cell Type: Closed
For Use Outdoors: No
Density: Extra Soft: 6 lbs./cu. ft.; Soft: 9 lbs./cu. ft.
Pressure to Compress 25%: Extra Soft: 7 psi; Soft: 9 psi
Tensile Strength Rating: Not Rated
Oil-Resistance Rating: Not Rated

			Adhesive
Thick.	Thick. Tolerance	Lg., ft.	Type	Temperature Range, °F	Specifications Met		Each
Extra Soft
1 1/4" Wd.
1/16"	-0.031" to 0.031"	50	Rubber	0° to 140°	ASTM D1056 2C2, UL 94 HF-1	00000000	000000
1/8"	-0.031" to 0.031"	50	Rubber	0° to 140°	ASTM D1056 2C2, UL 94 HF-1	00000000	00000
3/16"	-0.031" to 0.031"	50	Rubber	0° to 140°	ASTM D1056 2C2, UL 94 HF-1	00000000	00000
1/4"	-0.031" to 0.031"	50	Rubber	0° to 140°	ASTM D1056 2C2, UL 94 HF-1	00000000	00000
3/8"	-0.045" to 0.045"	25	Rubber	0° to 140°	ASTM D1056 2C2, UL 94 HF-1	00000000	00000
1/2"	-0.045" to 0.045"	25	Rubber	0° to 140°	ASTM D1056 2C2, UL 94 HF-1	00000000	00000
3/4"	-0.063" to 0.063"	25	Rubber	0° to 140°	ASTM D1056 2C2, UL 94 HF-1	00000000	00000
1"	-0.094" to 0.094"	25	Rubber	0° to 140°	ASTM D1056 2C2, UL 94 HF-1	00000000	00000

Multipurpose Neoprene Foam Sheets and Strips

In addition to having good resistance to water, sunlight, and oxidation, these neoprene foam sheets and strips resist swelling when they come into contact with oil.

Closed-cell foam restricts water, air, and gases from being absorbed.

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

Adhesive-Back Strips with Smooth Texture

Color: Black
Temperature Range: -70° to 200° F
Cell Type: Closed
For Use Outdoors: Yes
Density: Ultra Soft: 10 lbs./cu. ft.; Soft: 15 lbs./cu. ft.; Medium: 19 lbs./cu. ft.
Pressure to Compress 25%: Ultra Soft: 3 psi; Soft: 12 psi; Medium: 17 psi
Tensile Strength Rating: Ultra Soft: Fair; Soft and Medium: Good
Oil-Resistance Rating: Good

			Adhesive
Thick.	Thick. Tolerance	Lg., ft.	Type	Temperature Range, °F		Each
Soft
1 1/4" Wd.
1/16"	-0.015" to 0.015"	10	Acrylic	0° to 225°	000000000	000000
1/8"	-0.020" to 0.020"	10	Acrylic	0° to 225°	000000000	00000
1/4"	-0.025" to 0.025"	10	Acrylic	0° to 225°	000000000	00000
3/8"	-0.035" to 0.035"	10	Acrylic	0° to 225°	000000000	00000
1/2"	-0.040" to 0.040"	10	Acrylic	0° to 225°	000000000	00000
3/4"	-0.065" to 0.065"	3	Acrylic	0° to 225°	000000000	00000
1"	-0.082" to 0.082"	3	Acrylic	0° to 225°	000000000	00000

Ultra-Conformable Light Duty Vinyl Foam Sheets and Strips

These vinyl foam sheets and strips are so conformable that once they’re compressed they won’t fully spring back. Use them to fill gaps and seal uneven surfaces. They offer excellent resistance to water, sunlight, and oxidation. This foam has closed-cell construction, which restricts water, air, and gases from being absorbed.

Foam with ultra-smooth texture has a sleek surface that's easy to wipe down.

Adhesive-Back Strips with Ultra-Smooth Texture

Color: Gray or Black
Temperature Range: -30° to 140° F
Cell Type: Closed
For Use Outdoors: Yes
Density: Gray: 7 lbs./cu. ft.; Black: 12 lbs./cu. ft.
Pressure to Compress 25%: See table
Tensile Strength Rating: Not Rated
Oil-Resistance Rating: Not Rated

			Adhesive		Gray
Thick.	Thick. Tolerance	Lg., ft.	Type	Temperature Range, °F	Pressure to Compress 25%		Each
1 1/4" Wd.
3/16"	-0.038" to 0.038"	25	Acrylic	50° to 110°	2.5 psi (Ultra Soft)	00000000	000000