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About Durometer Hardness Scales
More
Grommets
Push these flexible grommets into place to protect wire, cable, and cords by turning rough-edged and uneven holes into smooth, insulated holes. Commonly used in metal panels, they also damp vibration. All of these grommets have a medium hardness rating to offer a balance of cushioning and impact resistance.
SBR grommets have good abrasion resistance. They are not for use outdoors.
EPDM grommets are UV, ozone, and chemical resistant. They can be used outdoors.
Buna-N grommets withstand a wider range of temperatures than other grommets and resist abrasion, oil, and grease. They are not for use outdoors.
Grommets that meet MIL-G-3036 resist hot petroleum-based oil and coolant.
Grommets that meet MS-35489 and AN931 adhere to military dimensional standards.
For technical drawings and 3-D models, click on a part number.
| For Hole Dia. (A) | For Material Thick. (B) | ID (C) | Flange Dia. (D) | Overall Ht. (E) | Hardness Rating | Hardness | Temp. Range, °F | For Use Outdoors | Color | Pkg. Qty. | Pkg. | |
SBR Rubber | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3/4" | 1/16" | 9/16" | 1" | 5/16" | Medium | Durometer 55A | -30° to 170° | No | Black | 100 | 0000000 | 000000 |
| 3/4" | 3/32" | 1/2" | 1" | 9/32" | Medium | Durometer 55A | -30° to 170° | No | Black | 50 | 0000000 | 00000 |
| 3/4" | 1/8" | 5/16" | 1" | 3/8" | Medium | Durometer 55A | -30° to 170° | No | Black | 10 | 0000000 | 00000 |
EPDM Rubber | ||||||||||||
| 3/4" | 3/32" | 1/2" | 1" | 9/32" | Medium | Durometer 50A | -60° to 300° | Yes | Black | 50 | 00000000 | 00000 |
| For Hole Dia. (A) | For Material Thick. (B) | ID (C) | Flange Dia. (D) | Overall Ht. (E) | Hardness Rating | Hardness | Temp. Range, °F | For Use Outdoors | Specifications Met | Color | Pkg. Qty. | Pkg. | |
Buna-N Rubber | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3/4" | 1/16" | 1/4" | 1" | 1/4" | Medium | Durometer 50A | 0° to 250° | No | MIL-G-3036, AN931-4-12, MS35489-7 | Black | 25 | 0000000 | 000000 |
| 3/4" | 1/16" | 5/16" | 1" | 5/16" | Medium | Durometer 50A | 0° to 250° | No | MIL-G-3036, AN931-5-12, MS35489-10 | Black | 25 | 0000000 | 00000 |
| 3/4" | 1/16" | 1/2" | 1" | 1/4" | Medium | Durometer 50A | 0° to 250° | No | MIL-G-3036, AN930-41, MS35489-149 | Black | 10 | 00000000 | 0000 |
| 3/4" | 3/32" | 1/2" | 1" | 9/32" | Medium | Durometer 50A | 0° to 250° | No | MIL-G-3036, AN930-4, MS35489-150 | Black | 25 | 0000000 | 00000 |
| 3/4" | 1/8" | 1/4" | 1" | 5/16" | Medium | Durometer 50A | 0° to 250° | No | MIL-G-3036, AN931-A4-12, MS35489-36 | Black | 10 | 00000000 | 0000 |
| 3/4" | 1/8" | 5/16" | 1" | 3/8" | Medium | Durometer 50A | 0° to 250° | No | MIL-G-3036, AN931-A5-12, MS35489-39 | Black | 25 | 0000000 | 00000 |
| 3/4" | 3/16" | 1/4" | 1" | 3/8" | Medium | Durometer 50A | 0° to 250° | No | MIL-G-3036, AN931-B4-12, MS35489-65 | Black | 10 | 00000000 | 00000 |
| 3/4" | 3/16" | 5/16" | 1" | 7/16" | Medium | Durometer 50A | 0° to 250° | No | MIL-G-3036, AN931-B5-12, MS35489-68 | Black | 25 | 0000000 | 00000 |
| 3/4" | 1/4" | 1/4" | 1" | 7/16" | Medium | Durometer 50A | 0° to 250° | No | MIL-G-3036, AN931-C4-12, MS35489-94 | Black | 10 | 00000000 | 00000 |
| 3/4" | 1/4" | 5/16" | 1" | 1/2" | Medium | Durometer 50A | 0° to 250° | No | MIL-G-3036, AN931-C5-12, MS35489-97 | Black | 10 | 00000000 | 0000 |
Cut-to-Size Grommets
Cut the thin layer of rubber in the center of these grommets to create custom IDs to securely hold and protect wire, cable, and cords. Push these grommets into place. They turn rough-edged and uneven holes into smooth, insulated holes. Commonly used in metal panels, they also damp vibration. All have a medium hardness rating to offer a balance of cushioning and impact resistance. They're also known as webbed grommets. Use a utility knife to make your cuts.
For indoor use, choose between SBR and Buna-N grommets. SBR grommets have good abrasion resistance. Buna-N grommets hold up to a wider range of temperatures than other grommets and resist abrasion, oil, and grease.
EPDM grommets are UV and ozone resistant, so you can use them outdoors. They won’t degrade from chemicals.
| For Hole Dia. (A) | For Material Thick. (B) | ID (C) | Flange Dia. (D) | Overall Ht. (E) | Hardness Rating | Hardness | Temp. Range, °F | For Use Outdoors | Color | Pkg. Qty. | Pkg. | |
SBR Rubber | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3/4" | 1/16" | 1/64"-9/16" | 1" | 5/16" | Medium | Durometer 55A | -30° to 170° | No | Black | 5 | 0000000 | 00000 |
| 3/4" | 3/32" | 1/64"-1/2" | 1" | 9/32" | Medium | Durometer 55A | -30° to 170° | No | Black | 5 | 0000000 | 0000 |
Buna-N Rubber | ||||||||||||
| 3/4" | 1/8" | 1/64"-5/16" | 1" | 3/8" | Medium | Durometer 45A | 0° to 250° | No | Black | 5 | 0000000 | 0000 |
EPDM Rubber | ||||||||||||
| 3/4" | 3/32" | 1/64"-1/2" | 1" | 9/32" | Medium | Durometer 55A | -60° to 300° | Yes | Black | 5 | 0000000 | 0000 |
High-Temperature Grommets
These flexible grommets withstand temperatures of 450° F or greater, which is approximately twice as high as our standard grommets. Push them into place to protect wire, cable, and cords by turning rough-edged and uneven holes into smooth, insulated holes. Commonly used in metal panels, they also damp vibration. All of these grommets can be used outdoors.
Grommets that meet MIL-G-3036 resist hot petroleum-based oil and coolant.
Grommets that meet MS35489, AN930, and AN931 adhere to military dimensional standards.
Silicone grommets withstand a wider range of temperatures, but are not as chemical resistant as fluoroelastomer. They have a medium hardness rating, which offers a balance of cushioning and impact resistance.
Fluoroelastomer grommets have excellent chemical resistance against a wide range of chemicals. They also have a medium-hard rating to withstand high levels of impact.
For technical drawings and 3-D models, click on a part number.
| For Hole Dia. (A) | For Material Thick. (B) | ID (C) | Flange Dia. (D) | Overall Ht. (E) | Hardness Rating | Hardness | Temp. Range, °F | For Use Outdoors | Specifications Met | Color | Pkg. Qty. | Pkg. | |
Style 1 | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Silicone Rubber | |||||||||||||
| 3/4" | 1/16" | 1/4" | 1" | 1/4" | Medium | Durometer 50A | -60° to 500° | Yes | MIL-G-3036, AN931-4-12, MS35489-7X | Red | 10 | 0000000 | 000000 |
| 3/4" | 1/16" | 5/16" | 1" | 5/16" | Medium | Durometer 50A | -60° to 500° | Yes | MIL-G-3036, AN931-5-12, MS35489-10X | Red | 10 | 0000000 | 00000 |
| 3/4" | 1/16" | 1/2" | 1" | 1/4" | Medium | Durometer 50A | -60° to 500° | Yes | MIL-G-3036, MS35489-149X, AN931-0-41-715 | Red | 10 | 00000000 | 00000 |
| 3/4" | 3/32" | 1/2" | 1" | 9/32" | Medium | Durometer 50A | -60° to 500° | Yes | MIL-G-3036, MS35489-150X, AN930-4 | Red | 10 | 0000000 | 00000 |
| 3/4" | 1/8" | 1/4" | 1" | 5/16" | Medium | Durometer 50A | -60° to 500° | Yes | MIL-G-3036, AN931-A4-12-715, MS35489-36X | Red | 5 | 00000000 | 00000 |
| 3/4" | 1/8" | 5/16" | 1" | 3/8" | Medium | Durometer 50A | -60° to 500° | Yes | MIL-G-3036, MS35489-39X, AN931-A5-12 | Red | 10 | 0000000 | 00000 |
| 3/4" | 1/8" | 1/2" | 1" | 5/16" | Medium | Durometer 50A | -60° to 500° | Yes | MIL-G-3036, AN931-0-42-715 | Red | 10 | 00000000 | 00000 |
| 3/4" | 3/16" | 1/4" | 1" | 3/8" | Medium | Durometer 50A | -60° to 500° | Yes | MIL-G-3036, AN931-B4-12-715, MS35489-65X | Red | 5 | 00000000 | 00000 |
| 3/4" | 3/16" | 5/16" | 1" | 7/16" | Medium | Durometer 50A | -60° to 500° | Yes | MIL-G-3036, MS35489-68X, AN931-B5-12 | Red | 10 | 0000000 | 00000 |
| 3/4" | 1/4" | 1/4" | 1" | 7/16" | Medium | Durometer 50A | -60° to 500° | Yes | MIL-G-3036, AN931-C4-12-715, MS35489-94X | Red | 2 | 00000000 | 0000 |
| 3/4" | 1/4" | 5/16" | 1" | 1/2" | Medium | Durometer 50A | -60° to 500° | Yes | MIL-G-3036, AN931-C5-12-715, MS35489-97X | Red | 5 | 00000000 | 00000 |
Style 2 | |||||||||||||
Fluoroelastomer Rubber | |||||||||||||
| 3/4" | 3/32" | 1/2" | 1" | 9/32" | Medium Hard | Durometer 65A | 10° to 450° | Yes | __ | Black | 1 | 0000000 | 0000 |
Grommet Assortments
Keep grommets of various sizes on hand to solve whatever problems arise. Push these flexible grommets into place to protect wire, cable, and cords by turning rough-edged and uneven holes into smooth, insulated holes. Commonly used in metal panels, they also damp vibration. All have a medium hardness rating for a balance of cushioning and impact resistance.
SBR grommets have good abrasion resistance.
For technical drawings and 3-D models, click on a part number.
| Number of Pieces | Hardness Rating | Hardness | Temperature Range, °F | For Use Outdoors | Container Type | Includes | Color | Each | |
SBR Rubber | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 172 | Medium | Durometer 55A | -30° to 170° | No | Plastic Case | Grommets for 3/16" Hole Diameter with 1/8" ID (25 ea.) Grommets for 1/4" Hole Diameter with 1/8" ID (25 ea.) Grommets for 3/8" Hole Diameter with 1/4" ID (25 ea.) Grommets for 1/2" Hole Diameter with 3/8" ID (15 ea.) Grommets for 5/8" Hole Diameter with 3/8" ID (9 ea.) Grommets for 3/4" Hole Diameter with 1/2" ID (15 ea.) Grommets for 7/8" Hole Diameter with 5/8" ID (10 ea.) Grommets for 1" Hole Diameter with 11/16" ID (24 ea.) Grommets for 1 1/8" Hole Diameter with 3/4" ID (24 ea.) | Black | 0000000 | 000000 |
Locking Grommets
These grommets snap into place and have wings that expand against the sides of the hole to lock them in position. Use them to protect wire, cable, and cords by turning rough-edged and uneven holes into smooth holes. Made of plastic, these grommets are chemical resistant, and all have an extra-hard rating to withstand high levels of impact.
For technical drawings and 3-D models, click on a part number.
| For Hole Dia. (A) | For Material Thick. (B) | ID (C) | Flange Dia. (D) | Overall Ht. (E) | Hardness Rating | Hardness | Temp. Range, °F | For Use Outdoors | Choose a Color | Pkg. Qty. | Pkg. | |
Nylon Plastic | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3/4" | 1/32"-1/16" | 5/8" | 53/64" | 1/4" | Extra Hard | Rockwell R120 | 0° to 220° | No | 100 | 0000000 | 00000 | |
| 3/4" | 1/32"-1/8" | 3/8" | 27/32" | 13/32" | Extra Hard | Rockwell R120 | 0° to 220° | No | 100 | 0000000 | 00000 | |
| 3/4" | 1/32"-1/8" | 1/2" | 27/32" | 13/32" | Extra Hard | Rockwell R120 | 0° to 220° | No | 100 | 0000000 | 00000 | |
| 3/4" | 1/32"-1/8" | 9/16" | 27/32" | 13/32" | Extra Hard | Rockwell R120 | 0° to 220° | No | 100 | 0000000 | 00000 | |
Expandable Locking Grommets
The center hole has flaps that flex to hold and protect various sizes of wire, cable, and cords while keeping out dust and debris. Snap these grommets into place and their wings expand against the sides of the hole to lock them in position. Use them to turn rough-edged and uneven holes into smooth holes. Made of plastic, these grommets are chemical resistant, and all have an extra-hard rating to withstand high levels of impact.
Grommets that can be used outdoors won't dry out and become brittle when exposed to UV rays.
For technical drawings and 3-D models, click on a part number.
| For Hole Dia. (A) | For Material Thick. (B) | ID (C) | Flange Dia. (D) | Overall Ht. (E) | Hardness Rating | Hardness | Temp. Range, °F | For Use Outdoors | Choose a Color | Pkg. Qty. | Pkg. | |
Nylon Plastic | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3/4" | 1/32"-1/16" | 1/32"-1/2" | 55/64" | 1/4" | Extra Hard | Durometer 80D | 0° to 220° | Yes | Black | 50 | 00000000 | 00000 |
| 3/4" | 1/32"-1/8" | 1/32"-1/2" | 55/64" | 25/64" | Extra Hard | Rockwell R120 | -40° to 250° | No | 100 | 000000 | 00000 | |
| 3/4" | 1/32"-1/4" | 1/32"-1/2" | 27/32" | 35/64" | Extra Hard | Durometer 80D | 0° to 220° | Yes | Black | 50 | 00000000 | 0000 |
Split Grommets
A slit in the side of these grommets allows you to install them around wire, cable, and cords that are already in place. They snap into the hole and their wings hold them tight. Use them to turn rough-edged and uneven holes into smooth, insulated holes. Made of plastic, these grommets are chemical resistant and won't dry out and become brittle when exposed to UV rays. All have an extra-hard rating to withstand high levels of impact. They can be used outdoors.
| For Hole Dia. (A) | For Material Thick. (B) | ID (C) | Flange Dia. (D) | Overall Ht. (E) | Hardness Rating | Hardness | Temp. Range, °F | For Use Outdoors | Color | Pkg. Qty. | Pkg. | |
Nylon Plastic | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3/4" | 1/32"-1/16" | 5/8" | 53/64" | 1/4" | Extra Hard | Rockwell R120 | 0° to 220° | Yes | Black | 100 | 00000000 | 000000 |
| 3/4" | 1/32"-1/8" | 35/64" | 25/32" | 25/64" | Extra Hard | Rockwell R120 | 0° to 220° | Yes | Black | 100 | 0000000 | 00000 |
Snap-In Plastic Cord Grips
These grips install into enclosure holes quickly to stabilize and relieve strain on cords. Unlike grips that fasten with locknuts, these cord grips snap in and require access to just the front side of the hole. All are nylon for corrosion and wear resistance.
For technical drawings and 3-D models, click on a part number.
| For Cord OD | For Hole Dia. | For Max. Panel Thick. | Cord Holding Type | Temperature Range, °F | Material | Specifications Met | Pkg. Qty. | Pkg. | |
| 0.23"-0.4" | 3/4" | 0.125" | Bushing | 0° to 220° | Black Nylon Plastic | CSA Certified, UL 94 V-2, UL Recognized Component | 10 | 000000000 | 00000 |
Cord Bushings
Protect cords routed through holes in enclosures and panels. By keeping cords secure, these bushings prevent scraping, pulling, and twisting to extend cord lifespan.
Installation requires access to just one side of a hole. For a tight fit, choose bushings for the lowest maximum panel thickness that will still fit your panel.
Installation pliers make it easier to attach bushings to cords.
For technical drawings and 3-D models, click on a part number.
Cord Bushings | Installation Pliers | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| For Cord OD | For Hole Diameter | For Maximum Panel Thickness | Cord Holding Type | Temperature Range, °F | Material | Specifications Met | Pkg. Qty. | Pkg. | Each | ||
| 0.36"-0.43" | 3/4" | 0.062" | Locking Tab | 0° to 220° | Black Nylon Plastic | CSA Certified, UL 94 V-2, UL Recognized Component | 100 | 00000000 | 000000 | 00000000 | 0000000 |
| 0.36"-0.43" | 3/4" | 0.12" | Locking Tab | 0° to 220° | Black Nylon Plastic | __ | 50 | 00000000 | 00000 | 0000000 | 00000 |
Continuous-Flex Cord Bushings
With a spring extension to prevent sharp bends, these bushings protects cords from wear and tear better than standard bushings. They secure cords routed through enclosures and panels to prevent scraping, pulling, and twisting to extend cord lifespan.
Installation requires access to just one side of a hole. For a tight fit, choose bushings for the lowest maximum panel thickness that will still fit your panel.
Installation pliers make it easier to attach bushings to cords.
For technical drawings and 3-D models, click on a part number.
Cord Bushings | Installation Pliers | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| For Cord OD | For Hole Diameter | For Maximum Panel Thickness | Cord Holding Type | Temperature Range, °F | Material | Specifications Met | Pkg. Qty. | Pkg. | Each | ||
| 0.36"-0.43" | 3/4" | 0.12" | Locking Tab | 0° to 220° | Black Nylon Plastic | CSA Certified, UL 94 V-2, UL Recognized Component | 10 | 00000000 | 000000 | 0000000 | 000000 |
Vibration-Damping Bushings
Use these bushings to damp vibration and reduce shock inside motors, fans, blowers, actuators, circuit boards, and other electronic equipment.
For technical drawings and 3-D models, click on a part number.
| Hole Dia. | Dia. | Overall Thick. | Capacity per Mount, lbs. | For Hole Dia. | For Plate Thick. | Deflection @ Capacity | Shear Capacity per Mount, lbs. | Deflection @ Shear Capacity | For Screw Size | Hardness | Hardness Rating | Temperature Range, °F | Pkg. Qty. | Pkg. | |
Blue PVC Plastic | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.43" | 1.27" | 0.33" | 100 | 0.75" | 0.09" | 0.04" | 3.7 | 0.06" | 7/16" | Durometer 56A | Medium | 55° to 105° | 10 | 00000000 | 000000 |
Extreme-Temperature Vibration-Damping Bushings
In addition to having a wider temperature range than our other vibration-damping bushings, these have excellent weather resistance. Use them to damp vibration and reduce shock inside motors, fans, blowers, actuators, circuit boards, and other electronic equipment.
For technical drawings and 3-D models, click on a part number.
| Hole Dia. | Dia. | O'all Thick. | Capacity per Mount, lbs. | For Hole Dia. | For Plate Thick. | Deflection @ Capacity | Shear Capacity per Mount, lbs. | Deflection @ Shear Capacity | For Screw Size | Hardness | Temperature Range, °F | Pkg. Qty. | Pkg. | |
Black Plastic/Rubber Blend | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.43" | 1.27" | 0.33" | 100 | 0.75" | 0.09" | 0.03" | 2.6 | 0.03" | 7/16" | Durometer 57A | -20° to 160° | 10 | 00000000 | 000000 |