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Hardness Rating Hardness Rating |
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For Use With For Use With |
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Minimum Temperature Minimum Temperature |
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About Durometer Hardness Scales
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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.
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 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 5/16" | 3/64" | 13/64" | 7/16" | 15/64" | Medium | Durometer 55A | -30° to 170° | No | Black | 50 | 00000000 | 000000 |
| 5/16" | 1/16" | 3/16" | 13/32" | 7/32" | Medium | Durometer 55A | -30° to 170° | No | Black | 100 | 0000000 | 0000 |
| 5/16" | 1/16" | 3/16" | 1/2" | 1/4" | Medium | Durometer 55A | -30° to 170° | No | Black | 100 | 0000000 | 0000 |
| 5/16" | 3/32" | 3/16" | 1/2" | 9/32" | Medium | Durometer 55A | -30° to 170° | No | Black | 100 | 0000000 | 0000 |
| 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 | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 5/16" | 1/16" | 3/16" | 7/16" | 3/16" | Medium | Durometer 50A | 0° to 250° | No | MIL-G-3036, AN931-3-5, MS35489-4 | Black | 50 | 0000000 | 00000 |
| 5/16" | 3/32" | 3/16" | 7/16" | 1/4" | Medium | Durometer 50A | 0° to 250° | No | MIL-G-3036, MS35489-144 | Black | 10 | 00000000 | 00000 |
| 5/16" | 1/8" | 3/16" | 7/16" | 1/4" | Medium | Durometer 50A | 0° to 250° | No | MIL-G-3036, AN931-A3-5, MS35489-33 | Black | 50 | 0000000 | 0000 |
| 5/16" | 3/16" | 3/16" | 7/16" | 5/16" | Medium | Durometer 50A | 0° to 250° | No | MIL-G-3036, AN931-B3-5, MS35489-62 | Black | 10 | 00000000 | 0000 |
| 5/16" | 1/4" | 3/16" | 7/16" | 3/8" | Medium | Durometer 50A | 0° to 250° | No | MIL-G-3036, AN931-C3-5, MS35489-91 | Black | 50 | 0000000 | 0000 |
| 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 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 5/16" | 1/16" | 3/16" | 7/16", 5/8" | 7/32" | Medium | Durometer 55A | -30° to 170° | No | Black | 100 | 0000000 | 00000 |
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 | |||||||||||||
| 5/16" | 1/16" | 3/16" | 7/16" | 3/16" | Medium | Durometer 50A | -60° to 500° | Yes | MIL-G-3036, MS35489-4X, AN931-3-5 | Red | 25 | 0000000 | 00000 |
| 5/16" | 3/32" | 3/16" | 7/16" | 1/4" | Medium | Durometer 50A | -60° to 500° | Yes | MIL-G-3036, AN931-415-715, MS35489-144X | Red | 10 | 00000000 | 00000 |
| 5/16" | 1/8" | 3/16" | 7/16" | 1/4" | Medium | Durometer 50A | -60° to 500° | Yes | MIL-G-3036, MS35489-33X, AN931-A3-5 | Red | 25 | 0000000 | 0000 |
| 5/16" | 3/16" | 3/16" | 7/16" | 5/16" | Medium | Durometer 50A | -60° to 500° | Yes | MIL-G-3036, AN931-B3-5-715, MS35489-62X | Red | 25 | 00000000 | 00000 |
| 5/16" | 1/4" | 3/16" | 7/16" | 3/8" | Medium | Durometer 50A | -60° to 500° | Yes | MIL-G-3036, MS35489-91X, AN931-C3-5 | Red | 10 | 0000000 | 0000 |
Style 2 | |||||||||||||
Fluoroelastomer Rubber | |||||||||||||
| 5/16" | 1/16" | 3/16" | 13/32" | 7/32" | Medium Hard | Durometer 65A | 10° to 450° | Yes | __ | Black | 1 | 00000000 | 0000 |
| 5/16" | 3/32" | 3/16" | 1/2" | 9/32" | Medium Hard | Durometer 65A | 10° to 450° | Yes | __ | Black | 1 | 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.
| 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 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 5/16" | 1/16" | 1/64"-3/16" | 13/32" | 7/32" | Medium | Durometer 55A | -30° to 170° | No | Black | 10 | 0000000 | 00000 |
Buna-N Rubber | ||||||||||||
| 5/16" | 1/8" | 1/64"-3/16" | 7/16" | 1/4" | Medium | Durometer 45A | 0° to 250° | No | Black | 10 | 0000000 | 0000 |
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 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 5/16" | 1/32"-1/16" | 3/16" | 3/8" | 5/16" | Extra Hard | Rockwell R120 | 0° to 220° | No | 100 | 0000000 | 00000 | |
| 5/16" | 1/32"-1/16" | 1/4" | 3/8" | 15/64" | Extra Hard | Rockwell R120 | 0° to 220° | No | 100 | 0000000 | 0000 | |
Shaft Grommets
Support shafts, bearings, and other moving parts that are routed through a hole. These grommets are slippery to allow parts to move freely in the hole. Install them on thin sheet-metal panels. All of the grommets are split, which makes them easy to snap into place while also allowing them to expand if they heat up or absorb moisture. Made of plastic, they 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 technical drawings and 3-D models, click on a part number.
| For Hole Dia. (A) | For Material Thick. (B) | ID (C) | Flange Dia. (D) | Flange Ht. | Overall Ht. (E) | Hardness Rating | Hardness | Temp. Range, °F | For Use Outdoors | Color | Each | |
Nylon Plastic | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 5/16" | 0.072"-0.135" | 1/4" | 11/32", 7/16" | 1/32" | 0.201" | Extra Hard | Rockwell R120 | -40° to 280° | Yes | Blue | 0000000 | 00000 |