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Bore Diameter (A) ?The internal diameter of the O-ring

Groove Width (B) ?The width of the groove where the O-ring sits

Groove Diameter (C) ?The diameter of the groove where the O-ring sits

Outside Diameter (D) ?The outer diameter of the O-ring

Overall Thickness (E) ?The total thickness of the O-ring

Standard Grommets

RPM Grommets are available in a variety of sizes to encompass almost any requirement.

Need a grommet for a unique application? No problem. Give us a call – we can produce in a number of different materials: EPDM, Nitrile, Silicone, HNBR, Neoprene, SBR.

Contact us if you can’t find the size you need. We can help!

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Item #
Bore Diameter A (in)
Groove Width B (in)
Groove Diameter C (in)
Outside Diameter D (in)
Overall Thickness E (in)
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1/4
1/4
1
1-1/4 
7/16 
1/4
1/4
3/4
7/16 
1/4
1/4
15/32
5/8 
1/2 
1 1/4
1/8
2-3/8
2-3/4 
1/2 
1 1/4
1/8
2-1/2
2-7/8 
1/2 
1 1/4
1/4
2-3/8
2-3/4 
5/8 
2 1/8
1/8
2 1/2
2 7/8 
1/2 
2 1/8
1/16
2 1/2
2 7/8 
7/16 
1 1/2
1/4
1 3/4
2 1/8 
5/8 
1 1/2
3/16
1 3/4
2 1/8 
9/16 
1 1/2
1/8
1 3/4
2 1/8 
1/2 
1 1/2
3/32
2
2 3/8 
3/8 
1 1/2
1/16
1 3/4
2 1/8 
7/16 
1 5/16
1/8
1 5/8
7/16 
1 5/16
1/16
1 5/8
3/8 
1 1/4
3/32
1 1/2
1 7/8 
3/8 
1 1/8
1/16
1 1/2
1 7/8 
3/8 
1
1/4
1 3/8
1 3/4 
5/8 
1
1/4
1 1/4
1 1/2 
1/2 
1
3/16
1 3/8
1 3/4 
9/16 

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