Cap Seals | McMaster-Carr

Search Results

	For Shape For Shape

	Round
	Angle
	Corner
	DIN Rail
	Hex
	Rectangle
	Square

	System of Measurement System of Measurement

	For OD For OD

0.053" to 0.12"

1/16" to 1/8"

0.079" to 0.15"

0.111" to 0.177"

1/8" to 3/16"

3/16" to 1/4"

3/16" to 1/2"

0.205" to 0.273"

0.235" to 0.302"

1/4" to 5/16"

1/4" to 1/2"

0.298" to 0.365"

5/16" to 3/8"

0.327" to 0.394"

0.356" to 0.422"

3/8" to 7/16"

3/8" to 7/8"

3/8" to 1"

0.385" to 0.451"

0.409" to 0.485"

0.468" to 0.545"

0.487" to 0.568"

1/2" to 9/16"

0.518" to 0.605"

0.613" to 0.693"

5/8" to 11/16"

21/32" to 1 3/8"

0.663" to 0.761"

0.687" to 0.785"

0.74" to 0.849"

3/4" to 13/16"

0.753" to 0.868"

7/8" to 15/16"

7/8" to 1 3/8"

7/8" to 2 1/4"

0.901" to 1.027"

0.933" to 1.083"

1" to 1 1/16"

1 1/32" to 2 5/32"

1.085" to 1.358"

1.169" to 1.437"

1.173" to 1.298"

1.249" to 1.402"

1 1/4" to 1 5/16"

1.282" to 1.445"

1 7/16" to 2 15/16"

1.498" to 1.62"

1 1/2" to 1 9/16"

1 1/2" to 5"

1 1/2" to 8"

1.568" to 1.688"

1.688" to 1.818"

1.718" to 1.888"

1 3/4" to 1 13/16"

1.781" to 1.938"

1.837" to 2.013"

1.953" to 2.085"

2" to 2 1/16"

2.063" to 2.377"

2.074" to 2 1/4"

2.235" to 2.401"

2 1/4" to 2 5/16"

2 1/4" to 11"

2.333" to 2.54"

2.395" to 2.688"

2 1/2" to 2 9/16"

2.579" to 2.728"

2.656" to 2.926"

2.685" to 2.947"

2 3/4" to 2 13/16"

2.787" to 2.918"

2 7/8" to 16"

2.912" to 3.175"

3" to 3 1/16"

3.02" to 3.3"

3.2" to 3.492"

3 1/4" to 3 5/16"

3.41" to 3.54"

3.48" to 3.66"

3 1/2" to 3 9/16"

3 5/8" to 3 13/16"

3 5/8" to 17"

3.71" to 3.84"

3.86" to 4"

3.94" to 4.07"

4" to 4 1/16"

4.29" to 4.54"

4.37" to 4.62"

4 3/8" to 24"

4.92" to 5.1"

5.21" to 5.37"

5.49" to 5.67"

5.92" to 6.1"

6.33" to 6.49"

6.53" to 6.63"

8.67" to 8.73"

4 to 5 mm

5 to 6 mm

6 to 7 mm

8 to 9 mm

9 to 10 mm

10 to 11 mm

11 to 12 mm

12 to 13 mm

13 to 15 mm

14 to 16 mm

15 to 17 mm

16 to 18 mm

17 to 19 mm

18 to 20 mm

20 to 22 mm

24 to 26 mm

	Material Material

Stainless
Steel

	Plug Type Plug Type


Push In	Snap In

Screw In	Pull Through

Locking	Expandable

Tamper Evident

	For ID For ID

0.025"-0.08"

1/32"-3/64"

1/32"-3/32"

1/32"-1/8"

3/64"-1/16"

3/64"-7/64"

3/64"-13/64"

0.05"-0.08"

1/16"-5/64"

1/16"-11/64"

1/16"-13/64"

0.07"-0.11"

5/64"-1/16"

5/64"-7/64"

5/64"-1/8"

5/64"-11/64"

0.1"-0.15"

7/64"-9/64"

7/64"-5/32"

0.116"-0.182"

1/8"-1/2"

0.14"-0.21"

0.14"-0.275"

9/64"-3/16"

9/64"-15/64"

9/64"-23/64"

5/32"-13/64"

0.16"-0.275"

11/64"-15/64"

3/16"-1/4"

0.19"-0.3"

0.19"-0.32"

13/64"-9/32"

13/64"-21/64"

7/32"-19/64"

0.22"-0.33"

0.22"-0.37"

0.236"-0.302"

0.24"-0.295"

1/4"-9/32"

1/4"-7/16"

17/64"-5/16"

17/64"-23/64"

17/64"-3/8"

17/64"-27/64"

0.27"-0.4"

9/32"-23/64"

9/32"-25/64"

19/64"-21/64"

0.299"-0.365"

0.31"-0.33"

21/64"-7/16"

21/64"-31/64"

21/64"-1/2"

0.33"-0.396"

0.34"-0.45"

11/32"-3/8"

11/32"-13/32"

11/32"-15/32"

11/32"-1/2"

23/64"-29/64"

0.361"-0.418"

0.361"-0.427"

3/8"-27/64"

25/64"-19/32"

13/32"-19/32"

0.419"-0.485"

27/64"-29/64"

27/64"-37/64"

7/16"-35/64"

29/64"-31/64"

29/64"-37/64"

29/64"-39/64"

29/64"-43/64"

0.46"-0.57"

15/32"-17/32"

0.471"-0.536"

0.471"-0.547"

31/64"-35/64"

1/2"-37/64"

1/2"-21/32"

33/64"-19/32"

33/64"-41/64"

33/64"-45/64"

17/32"-39/64"

17/32"-11/16"

0.532"-0.608"

35/64"-41/64"

35/64"-3/4"

0.55"-0.631"

9/16"-5/8"

37/64"-11/16"

37/64"-47/64"

0.58"-0.667"

0.59"-0.7"

19/32"-43/64"

19/32"-45/64"

39/64"-23/32"

0.61"-0.7"

5/8"-45/64"

5/8"-23/32"

0.64"-0.727"

41/64"-23/32"

41/64"-49/64"

41/64"-25/32"

41/64"-51/64"

43/64"-23/32"

43/64"-47/64"

43/64"-49/64"

43/64"-25/32"

0.69"-0.788"

0.71"-0.82"

23/32"-53/64"

23/32"-15/16"

47/64"-53/64"

47/64"-7/8"

47/64"-59/64"

0.74"-0.83"

3/4"-0.848"

3/4"-1"

49/64"-57/64"

49/64"-29/32"

51/64"-59/64"

51/64"-15/16"

51/64"-31/32"

51/64"-1"

51/64"-1 1/64"

53/64"-31/32"

53/64"-63/64"

0.84"-0.95"

27/32"-1 7/32"

0.866"-0.975"

7/8"-1"

57/64"-31/32"

29/32"-1 1/16"

0.915"-1.04"

59/64"-1"

59/64"-1 3/64"

61/64"-1 1/64"

61/64"-1 3/64"

61/64"-1 5/64"

61/64"-1 3/32"

0.96"-1.05"

0.96"-1.07"

0.964"-1.09"

63/64"-1 3/64"

0.99"-1.08"

1"-1 1/8"

1 1/32"-1 1/4"

1 3/64"-1 11/64"

1 3/64"-1 1/4"

1 1/16"-1 3/16"

1 1/16"-1 21/64"

1 5/64"-1 13/64"

1 5/64"-1 7/32"

1 5/64"-1 21/64"

1.09"-1.2"

1.094"-1.215"

1 7/64"-1 19/64"

1 1/8"-1 7/32"

1 9/64"-1 13/32"

1 11/64"-1 19/64"

1.175"-1.284"

1 3/16"-1 7/16"

1 3/16"-1 29/64"

1.21"-1.3"

1 7/32"-1 3/8"

1.23"-1.33"

1 15/64"-1 27/64"

1 15/64"-1 17/32"

1 1/4"-1 5/16"

1 17/64"-1 31/64"

1 19/64"-1 27/64"

1 19/64"-1 1/2"

1.312"-1.465"

1 5/16"-1 39/64"

1 5/16"-1 5/8"

1 21/64"-1 35/64"

1 21/64"-1 9/16"

1 21/64"-1 19/32"

1.34"-1.45"

1 11/32"-1 1/2"

1 23/64"-1 9/16"

1.36"-1.45"

1 27/64"-1 35/64"

1 27/64"-1 11/16"

1 29/64"-1 5/8"

1.46"-1.55"

1 15/32"-1 5/8"

1 15/32"-1 3/4"

1 15/32"-1 49/64"

1 31/64"-1 3/4"

1.49"-1.58"

1 1/2"-1 37/64"

1 1/2"-1 11/16"

1 1/2"-1 51/64"

1.513"-1.6"

1 33/64"-1 23/32"

1 17/32"-1 45/64"

1 35/64"-1 43/64"

1 35/64"-1 3/4"

1.56"-1.682"

1.59"-1.68"

1.59"-1.7"

1 19/32"-1 3/4"

1 41/64"-1 61/64"

1 21/32"-1 15/16"

1 21/32"-1 31/32"

1 43/64"-1 13/16"

1 45/64"-1 29/32"

1 23/32"-1 7/8"

1 23/32"-1 59/64"

1.74"-1.83"

1 3/4"-1 13/16"

1 3/4"-1.88"

1.781"-1.805"

1 25/32"-2 5/64"

1 51/64"-1 59/64"

1 13/16"-2 1/64"

1 53/64"-2 1/32"

1.84"-1.93"

1.84"-1.95"

1.86"-1.99"

1.865"-1.975"

1 57/64"-2 3/16"

1 57/64"-2 13/64"

1 29/32"-2 9/64"

1 59/64"-2 3/64"

1 59/64"-2 5/32"

1 15/16"-2 5/32"

1 31/32"-2 15/32"

1.975"-2.132"

1 63/64"-2 15/32"

1.99"-2.08"

2"-2 13/32"

2 1/64"-2 13/32"

2 3/64"-2 11/64"

2.067"-2.243"

2.11"-2.2"

2 9/64"-2 1/2"

2 9/64"-2 33/64"

2 5/32"-2 7/16"

2 11/64"-2 19/64"

2 11/64"-2 15/32"

2 3/16"-2 29/64"

2 7/32"-2 1/4"

2.23"-2.26"

2 19/64"-2 27/64"

2 19/64"-2 21/32"

2.298"-2.464"

2 5/16"-2 21/32"

2 21/64"-2 5/8"

2.34"-2.43"

2.395"-2.602"

2 27/64"-2 35/64"

2 29/64"-2 1/2"

2 29/64"-2 15/16"

2 29/64"-2 61/64"

2 15/32"-2 57/64"

2 31/64"-2 7/8"

2.5"-2 7/8"

2 35/64"-2 43/64"

2.614"-2.79"

2 43/64"-2 13/16"

2 51/64"-2 59/64"

2.81"-2.88"

2.849"-2.98"

2 59/64"-3 3/64"

2 61/64"-3 17/32"

2.975"-3.103"

3"-3.375"

3"-3 15/32"

3 1/64"-3 17/32"

3 3/64"-3 11/64"

3 3/64"-3 7/16"

3.14"-3.28"

3 17/64"-4 1/32"

3.27"-3.562"

3 9/32"-4 3/64"

3 19/64"-3 15/16"

3.325"-3.457"

3 11/32"-3 15/16"

3.47"-3.6"

3.5"-3.875"

3 33/64"-4 63/64"

3.52"-3.67"

3 35/64"-4 15/16"

3 35/64"-5"

3 19/32"-4 7/8"

3.73"-3.87"

3.75"-4.125"

3.79"-3.92"

4"-4.375"

4.02"-4.14"

4 3/64"-4 15/16"

4.25"-4.625"

4.27"-4.43"

4 19/64"-5 9/64"

4.34"-4.51"

4.5"-4 7/8"

4.75"-5"

4 51/64"-5 47/64"

4.99"-5.2"

5"-5.375"

5 3/64"-6 1/16"

5.5"-5.875"

6"-6.375"

6.25"-6.5"

6.4"-6.56"

6.5"-6.875"

7.97"-8.14"

15-16mm

16-18mm

19-20mm

21-22mm

23-24mm

25-26mm

27-28mm

29-30mm

31-32mm

33-34mm

	Color Color

	Black
	Beige
	Brown
	Pink
	Red
	Blue
	Orange
	White
	Clear
	Dark Blue
	Dark Brown
	Dark Green
	Dark Red
	Gold
	Gray
	Green
	Light Brown
	Light Gray
	Off-White
	Olive
	Purple
	Semi-Clear
	Silver
	Tan
	Yellow

	Profile Profile


Straight	Tapered

	Cap Type Cap Type


Push On	Screw On

Snap On	Stretchable

Adhesive Back	Weld On

Shrink Fit

	Inside Height Inside Height

	Maximum Temperature Maximum Temperature

Less than 150° F

150° to 199° F

200° to 249° F

250° to 499° F

500° F or greater

	Flexibility Flexibility

	Height Height

	Hardness Hardness

	For Surface Type For Surface Type

	Head Diameter Head Diameter

	Head Width Head Width

	For Pipe Size For Pipe Size

1/16
1/8
1/4
3/8
1/2
3/4
1
1 1/4
1 1/2
2
2 1/2
3
3 1/2
4
5
6
8
10
12
14
16
18
20

	For Connection Type For Connection Type

Straight-Thread Pipe

Tapered-Thread Pipe

Unthreaded Pipe

37° Flared Tube

	For Inside Width For Inside Width

0.34"-0.43"

0.37"-0.4"

0.46"-0.55"

0.584"-0.68"

0.59"-0.68"

0.6"-0.67"

0.709"-0.805"

0.71"-0.8"

0.72"-0.84"

0.73"-0.83"

0.83"-0.93"

0.84"-0.93"

0.84"-0.95"

0.85"-0.92"

0.96"-1.05"

1.02"-1.1"

1.02"-1.13"

1.08"-1.18"

1.1"-1.17"

1.11"-1.2"

1.21"-1.3"

1.23"-1.33"

1.24"-1.33"

1.29"-1.34"

1.29"-1.37"

1.33"-1.43"

1.35"-1.42"

1.42"-1.5"

1.49"-1.58"

1.59"-1.68"

1.73"-1.83"

1.74"-1.83"

1.84"-1.93"

1.85"-1.92"

1.99"-2.08"

2.09"-2.23"

2.24"-2.33"

2.37"-2.45"

2.42"-2.58"

2.49"-2.64"

2.59"-2.68"

2.6"-2.67"

2.76"-2.84"

3.15"-3.26"

3.33"-3.43"

3.44"-3.62"

3.52"-3.76"

3.78"-3.86"

4.34"-4.51"

4.48"-4.73"

5.48"-5.73"

22-23mm

24-27mm

30-32mm

32-35mm

42-46mm

	For Panel Thickness For Panel Thickness

0.016"-0.063"

0.016"-0.125"

0.016"-0.25"

0.02"-0.07"

0.02"-0.18"

0.02"-0.25"

0.03"-0.08"

0.03"-0.11"

0.031"-0.072"

0.031"-0.094"

0.031"-0.109"

0.031"-0.14"

0.031"-0.171"

0.05"-0.1"

0.05"-0.11"

0.059"-0.08"

0.06"-0.08"

0.06"-0.11"

0.063"-0.25"

0.07"-0.13"

0.5-1 mm

0.5-1.5 mm

0.8-1.6 mm

0.8-2 mm

0.8-2.5 mm

0.8-3.5 mm

0.8-4 mm

	For Outside Width For Outside Width

	Thread Size Thread Size

How can we improve?

2,046 Products

Caps and Plugs

Plugs

Caps

Caps

Rod and Piston Seals

Rod Seals

Rod Seals

Maintain the pressure inside cylinders and prevent fluid from leaking out.

Piston Seals

Piston Seals

Making a seal between their outside edge and the cylinder bore, these seals prevent internal leaks.

Other Cap Seals

Heat-Shrink End Caps

Seal the end of crimped connections, such as motor coils, to protect them from moisture.

Grease Fitting Dust Caps

Keep standard grease fittings free of dirt and moisture.

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