RUBBER HOLE PLUGS

2021-03-15 · Stoppers & Plugs

RUBBER HOLE PLUGS

Rubber hole plugs cover unused access or fixing holes in equipment panels. Before closing an opening, establish whether it is intended to remain open for ventilation, drainage or servicing. The plug should match both the opening and the purpose of the closure.

Hole diameter alone does not define the fit. Panel thickness, the plug’s retaining groove and the overlap of its head determine how it seats. A correctly sized plug should engage around the edge without excessive stretching, buckling or interference with components behind the panel.

Choose the rubber compound for the conditions at the covered hole. Where the closure needs to resist water, dust or a pressure difference, evaluate the complete panel-and-plug assembly for that duty. Color and head shape can be selected to suit the visible surface, but they do not establish sealing performance.

All dimensions are in mm

Stopper & Plug Size Catalog

Compare four stopper profiles and check the selected part dimensions against your opening and available depth. Each profile has its own drawing and dimension meanings.

Custom colors are available to your Pantone color code. Include the code in your inquiry.

RST T-Shaped Plugs

Match stem diameter A, flange diameter B, stem length C and flange thickness D. E refers to the underside recess; use the selected row and approved drawing to confirm the actual profile.

T-shaped stopper — original A, B, C, D and E dimensions — A recessed RST variant is illustrated. The head remains closed. Check E and the approved section for the selected part.

Rubber Silicone Plugs(T-shaped-RST) — product view — Illustrative product rendering. Refer to the selected part drawing and table for dimensions.

PartNo.	A（mm）	B（mm）	C（mm）	D（mm）
RST2.5-5.5-5.3	2.5	5.5	5.3	2
RST2.7-5.5-5	2.7	5.5	5	2
RST3-4.3-4.5	3	4.3	4.5	0.8
RST3-7-7	3	7	7	2.2
RST3.3-6.5-6	3.3	6.5	6	1.5
RST3.5-6.5-6	3.5	6.5	6	2
RST3.8-7-10.5	3.8	7	10.5	1.5
RST3.8-7-7	3.8	7	7	1.5
RST3.8-7-6	3.8	7	6	1.5
RST4-7.5-6	4	7.5	6	2
RST4-9.5-7	4	9.5	7	2.5
RST4.3-8-6	4.3	8	6	1.5
RST4.5-7.5-6	4.5	7.5	6	2
RST4.8-6.8-3.6	4.8	6.8	3.6	0.9
RST4.8-9-7	4.8	9	7	1.5

RSA Tapered Corks

Compare large-end diameter A, small-end diameter B and Height, in mm. The mating bore and required seating depth determine where the taper contacts the opening.

Tapered cork — Diameter A, Diameter B and Height — Tapered profile reference. Use Diameter A, Diameter B and Height from the selected row.

Rubber Corks(Tapered-RSA) — product view — Illustrative product rendering. Refer to the selected part drawing and table for dimensions.

Part No.	Diameter A	Diameter B	Height	Materials
RSA1.6-0.4-15.9	1.6	0.4	15.9	Silicone
RSA2-0.5-19.1	2	0.5	19.1	Silicone
RSA3.2-0.8-15.9	3.2	0.8	15.9	Silicone
RSA3.2-1.6-15.9	3.2	1.6	15.9	Silicone
RSA4.8-1.6-15.9	4.8	1.6	15.9	Silicone
RSA4.8-1.6-19.1	4.8	1.6	19.1	Silicone
RSA5.5-1.2-38.1	5.5	1.2	38.1	Silicone
RSA6.4-3.2-19.1	6.4	3.2	19.1	Silicone
RSA6.4-3.2-25.4	6.4	3.2	25.4	Silicone
RSA8.7-4.8-15.9	8.7	4.8	15.9	Silicone
RSA8.7-4.8-25.4	8.7	4.8	25.4	Silicone
RSA9.2-6.2-12.8	9.2	6.2	12.8	Silicone
RSA9.5-6.5-18.5	9.5	6.5	18.5	Silicone
RSA11-8.5-17.5	11	8.5	17.5	Silicone
RSA11.5-6.5-25	11.5	6.5	25	Silicone

RSB Undercut Plugs

Compare neck diameter A, flange diameter B, flange-to-lip distance C and flange thickness D. Check panel thickness and rear clearance. E refers to the underside recess.

Silicone Plugs(Undercut-RSB) — product view — Illustrative product rendering. Refer to the selected part drawing and table for dimensions.

Part No.	A (mm)	B (mm)	C (mm)	D (mm)	E (mm)
RSB2.5-6-3	2.5	6	3	1.5	0
RSB3-7-3	3	7	3	2	0
RSB3.5-7.5-3	3.5	7.5	3	2	0
RSB3.6-7.5-6	3.6	7.5	6	2	0
RSB4-8-3	4	8	3	2	0
RSB4.5-8.5-3	4.5	8.5	3	2	2
RSB5-9-3	5	9	3	2	2.5
RSB5.5-9.5-3	5.5	9.5	3	2	3
RSB6-10-4	6	10	4	2	3.5
RSB6.5-10.5-4	6.5	10.5	4	2	4
RSB6.5-12-8	6.5	12	8	2	0
RSB6.7-8.7-5.3	6.7	8.7	5.3	1.3	4.1
RSB7-11-4	7	11	4	2	4.5
RSB7.5-11.5-4	7.5	11.5	4	2	5
RSB8-12-4	8	12	4	2	5.5

RSD T-Shaped Stoppers

Compare stem diameter A, flange diameter B, stem length C and head thickness D, in mm. Check the seating surface and available depth as well as the hole diameter.

T-shaped stopper — original A, B, C and D dimensions — Solid T-shaped profile reference. Dimensions A–D follow the selected part drawing.

Silicone Stoppers(T shape) — product view — Illustrative product rendering. Refer to the selected part drawing and table for dimensions.

Part No.	A (mm)	B (mm)	C (mm)	D (mm)	Materials
RSD2.7-5.5-5	2.7	5.5	5	2	Rubber, Silicone
RSD3-7-7	3	7	7	2.2	Rubber, Silicone
RSD3.3-6.5-6	3.3	6.5	6	1.5	Rubber, Silicone
RSD3.5-6.5-6	3.5	6.5	6	2	Rubber, Silicone
RSD3.8-7-6	3.8	7	6	1.5	Rubber, Silicone
RSD4-9.5-7	4	9.5	7	2.5	Rubber, Silicone
RSD4.3-8-6	4.3	8	6	1.5	Rubber, Silicone
RSD4.5-7.5-6	4.5	7.5	6	2	Rubber, Silicone
RSD4.8-9-7	4.8	9	7	1.5	Rubber, Silicone
RSD5-12-8	5	12	8	2.8	Rubber, Silicone
RSD5.3-9.5-7	5.3	9.5	7	1.5	Rubber, Silicone
RSD5.5-8.5-7	5.5	8.5	7	2	Rubber, Silicone
RSD5.8-10-8	5.8	10	8	2	Rubber, Silicone
RSD6-13-8	6	13	8	3.5	Rubber, Silicone
RSD6.3-10.5-8	6.3	10.5	8	2	Rubber, Silicone

Need a different fit? Share the opening dimensions, mating profile and intended use for a custom size.

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RUBBER HOLE PLUGS

RUBBER HOLE PLUGS

All dimensions are in mm

Stopper & Plug Size Catalog

RST T-Shaped Plugs

RSA Tapered Corks

RSB Undercut Plugs

RSD T-Shaped Stoppers

Need a quote or a custom part?

Ready to Find Your Rubber Part?

Request a Quote

RUBBER HOLE PLUGS

All dimensions are in mm​

Stopper & Plug Size Catalog

RST T-Shaped Plugs

RSA Tapered Corks

RSB Undercut Plugs

RSD T-Shaped Stoppers

Need a quote or a custom part?

Ready to Find Your Rubber Part?

All dimensions are in mm