Silicone Dust Caps | McMaster-Carr

Clear All

	Material Material	Show

Silicone Rubber

	Material Material	Hide

Silicone Rubber

Stainless Steel

	Profile Profile


Straight	Tapered

	System of Measurement System of Measurement

	For ID For ID

1 1/16"-1 21/64"

1 5/64"-1 7/32"

1 5/64"-1 21/64"

1 9/64"-1 13/32"

1 3/16"-1 7/16"

1 3/16"-1 29/64"

1 15/64"-1 17/32"

1 19/64"-1 1/2"

1 5/16"-1 39/64"

1 21/64"-1 9/16"

1 21/64"-1 19/32"

1 27/64"-1 11/16"

1 15/32"-1 3/4"

1 15/32"-1 49/64"

1 31/64"-1 3/4"

1 1/2"-1 51/64"

1 17/32"-1 45/64"

1 41/64"-1 61/64"

1 21/32"-1 15/16"

1 21/32"-1 31/32"

1 23/32"-1 59/64"

1 25/32"-2 5/64"

1 13/16"-2 1/64"

1 57/64"-2 3/16"

1 57/64"-2 13/64"

1 15/16"-2 5/32"

1 31/32"-2 15/32"

1 63/64"-2 15/32"

2 9/64"-2 33/64"

2 3/16"-2 29/64"

2 19/64"-2 21/32"

2 5/16"-2 21/32"

2 29/64"-2 15/16"

2 29/64"-2 61/64"

2 61/64"-3 17/32"

3 1/64"-3 17/32"

3 17/64"-4 1/32"

3 9/32"-4 3/64"

3 33/64"-4 63/64"

	For Shape For Shape

	Round

	For OD For OD

	Plug Type Plug Type


Push In	Screw In

Pull Through	Expandable

	Color Color

	Black		Red
	White		Pink
	Yellow		Blue
	Clear		Off-White
	Green		Orange
	Gray		Semi- Clear
	Purple

	Maximum Temperature Maximum Temperature

250° to 499° F

500° F or greater

	Cap Type Cap Type


Push On	Stretchable

	Height Height

	For Surface Type For Surface Type

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	Hardness Hardness

	Inside Height Inside Height

	For Pipe Size For Pipe Size

	Flexibility Flexibility

	Flexible

	Pipe Size Pipe Size

	Trade Size Trade Size

00
0
1
2
3
4
5
5 1/2
6
6 1/2
7
7 1/2
8
8 1/2
9
9 1/2
10
10 1/2
11
11 1/2
12
13
13 1/2
14
15
16

	For Thread Type For Thread Type

	For Connection Type For Connection Type

Unthreaded Pipe

Tapered-Thread Pipe

	Flange Diameter Flange Diameter

	For Use With For Use With

View catalog pages (9)

How can we improve?

235 Products

Caps and Plugs

High-Temperature Round Caps

default

Good for electroplating, paint baking, and powder-coating applications, these caps withstand temperatures up to 440° F or 570° F.

High-Temperature Tapered Caps

High-Temperature Tapered Caps

Made of silicone, these caps withstand temperatures of 450° F for electroplating, paint-baking, and powder-coating applications. All of these flexible caps are tapered to fit a variety of unthreaded and threaded objects.

Stretchable Sealing Caps

Stretchable Sealing Caps

Create an airtight seal around the tips of bottles and containers.

High-Temperature Round Plugs for NPT Pipe

High-Temperature Round Plugs for NPT Pipe

These plugs withstand temperatures up to 600° F to protect internally threaded NPT connections from contaminants during electropainting, paint baking, and powder coating applications.

High-Temperature Pull-Through Round Plugs

Good for electroplating, paint baking, and powder-coating applications, these plugs withstand temperatures up to 600° F. To form a tight seal, use the smaller end of the plug to pull the larger end into a through hole.

Flanged Pull-Through Round Plugs

Designed with a flange, these plugs protect countersunk holes during anodizing, electroplating, paint baking, and powder-coating applications. All withstand temperatures up to 600° F. Use the smaller end of the plug to pull the larger end into a through hole to form a tight seal.

Miniature Pull-Through Round Plugs

Miniature Pull-Through Round Plugs

Also known as mouse tails, these tiny plugs fit through-hole IDs as small as 0.022”, 0.025", or 0.03”.

High-Temperature Tapered Plugs

High-Temperature Tapered Plugs

Good for electroplating, paint baking, and powder-coating applications, these plugs withstand temperatures up to 570° F. All are tapered to fit a range of hole diameters.

Hollow High-Temperature Tapered Plugs

Hollow High-Temperature Tapered Plugs

The hollow construction allows these plugs to compress for a snug fit in threaded and unthreaded holes of varying diameters. Good for electroplating, paint baking, and powder-coating applications, they withstand temperatures up to 450° F.

Expandable High-Temperature Tapered Plugs

Expandable High-Temperature Tapered Plugs

Place a plug into an opening and tighten the wing nut—the sides expand to create a seal in holes of varying diameters. Good for paint baking and powder-coating applications, these plugs withstand temperatures up to 450° F.

Food Industry Tapered Plugs

Made of FDA listed materials, these plugs are suitable for food contact. They're tapered to fit a range of hole diameters.

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)