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Rubber Grommet AI-2278 — OD 2-1/8 in | ID 1-1/2 in | THK 7/16 in

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MIL-Spec grommets—callouts A, B, C, D, E
MIL-Spec grommets—callouts A, B, C, D, E
Grommet dimensions—OD, ID, GD, GW, TK

Rubber Grommet AI-2278 — OD 2-1/8 in | ID 1-1/2 in | THK 7/16 in

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AI rubber grommet AI-2278: OD 2-1/8 in (2.125), ID 1-1/2 in (1.500), thickness 7/16 in (0.437), groove width 1/16 in (0.062), groove diameter 1-3/4 in (1.750).

SKU: AI-2278 Categories: , Brand:

Product description

  • Series: AI Series
  • Part number: AI-2278
  • Outer diameter (OD): 2-1/8 in (2.125)
  • Inner diameter (ID): 1-1/2 in (1.500)
  • Thickness (panel thickness, THK): 7/16 in (0.437)
  • Groove width (GW): 1/16 in (0.062)
  • Groove diameter (GD): 1-3/4 in (1.750)

Rubber grommets are used to protect wires, cables, and tubing as they pass through cutouts in panels, bulkheads, and machinery. This AI grommet AI-2278 is designed for panel protection and vibration damping in industrial and aerospace environments. Dimensions are provided in both fractional and decimal inch formats to support engineering drawings, MRO, and procurement workflows.

Additional Information

Outer Diameter (OD) - fraction

2-1/8 in

Outer Diameter (OD) - decimal

2.125

Inner Diameter (ID) - fraction

1-1/2 in

Inner Diameter (ID) - decimal

1.500

Thickness (THK) - fraction

7/16 in

Thickness (THK) - decimal

0.437

Groove Width (GW) - fraction

1/16 in

Groove Width (GW) - decimal

0.062

Groove Diameter (GD) - fraction

1-3/4 in

Groove Diameter (GD) - decimal

1.750

Groove Diameter (GD)

1-3/4

Groove Width (GW)

1/16

Inner Diameter (ID)

1-1/2

Outer Diameter (OD)

2-1/8

Thickness (THK)

7/16

Series

AI Series

Industry Cross-Reference Part Numbers

This product is compatible with and can replace the following part numbers from other suppliers:

SupplierPart Number(s)
MS Cross RefMS35489-27
RPDG3073
Badger RubberBG224
McMaster-Carr9600K225, 9307K84, 1061T79
Minor RubberZ-3058

Cross-reference information is provided for convenience. RPM Engineering products are manufactured to meet or exceed industry standards. For technical specifications, please refer to the Additional Information tab.

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