Conductive Caps | McMaster-Carr

	For Thread Diameter For Thread Diameter

1/4"

3/8"

1/2"

	For OD For OD

	Color Color

	Black
	Pink

	For ID For ID

	For Surface Type For Surface Type

Threaded

Unthreaded

	Head Diameter Head Diameter

	Electrical Properties Electrical Properties

Conductive

Antistatic

	Maximum Surface Resistivity Maximum Surface Resistivity

10⁵ ohms

10¹² ohms

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

DFARS Specialty Metals
COTS-Exempt

	Inside Height Inside Height

15/32"

1/2"

9/16"

	Hardness Hardness

Durometer 60A

Durometer 45D

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24 Products

Conductive Round Caps

With a surface resistivity of less than 10⁵ ohms, these caps not only dissipate electrical charges, but can be used as an electrical shield. All meet the static requirements of MIL-PRF-81705. They fit electrical connectors with straight threads as well as unthreaded bayonet-type connectors.

For technical drawings and 3-D models, click on a part number.

Rigid Plastic
For OD	For Thread Dia.	Inside Ht.	Max. Temp., °F	Max. Surface Resistivity, ohms	Color	Specifications Met	Pkg. Qty.		Pkg.
0.244"	1/4"	15/32"	140°	10⁵	Black	MIL-PRF-81705	50	00000000	000000
0.368"	3/8"	1/2"	140°	10⁵	Black	MIL-PRF-81705	50	00000000	00000
0.487"	1/2"	1/2"	140°	10⁵	Black	MIL-PRF-81705	50	00000000	00000
0.607"	5/8"	1/2"	140°	10⁵	Black	MIL-PRF-81705	50	00000000	00000
0.73"	3/4"	1/2"	140°	10⁵	Black	MIL-PRF-81705	25	00000000	00000
0.852"	7/8"	1/2"	140°	10⁵	Black	MIL-PRF-81705	25	00000000	00000
0.992"	1"	1/2"	140°	10⁵	Black	MIL-PRF-81705	25	00000000	00000
1.244"	1 1/4"	9/16"	140°	10⁵	Black	MIL-PRF-81705	25	00000000	00000
1.478"	1 1/2"	9/16"	140°	10⁵	Black	MIL-PRF-81705	25	00000000	00000

Conductive Round Plugs

With a surface resistivity of less than 10⁵ ohms, these plugs not only dissipate electrical charges, but can be used as an electrical shield. All meet the static requirements of MIL-PRF-81705. They fit electrical connectors with straight threads as well as unthreaded bayonet-type connectors.

For technical drawings and 3-D models, click on a part number.

Polyethylene Plastic
For ID	For Thread Dia.	Ht.	Head Dia.	Max. Surface Resistivity, ohms	Max. Temp., °F	Hardness	Color	Specifications Met	Pkg. Qty.		Pkg.
15/32"	1/2"	5/8"	11/16"	10⁵	140°	Durometer 45D	Black	MIL-PRF-81705	50	00000000	000000
19/32"	5/8"	5/8"	3/4"	10⁵	140°	Durometer 45D	Black	MIL-PRF-81705	50	00000000	00000
23/32"	3/4"	5/8"	7/8"	10⁵	140°	Durometer 45D	Black	MIL-PRF-81705	50	00000000	00000
27/32"	7/8"	5/8"	1 1/16"	10⁵	140°	Durometer 45D	Black	MIL-PRF-81705	50	00000000	00000
31/32"	1"	5/8"	1 3/16"	10⁵	140°	Durometer 45D	Black	MIL-PRF-81705	50	00000000	00000
1 3/32"	1 1/8"	5/8"	1 1/4"	10⁵	140°	Durometer 45D	Black	MIL-PRF-81705	25	00000000	00000
1 7/32"	1 1/4"	5/8"	1 1/2"	10⁵	140°	Durometer 45D	Black	MIL-PRF-81705	25	00000000	00000
1 11/32"	1 3/8"	5/8"	1 17/32"	10⁵	140°	Durometer 45D	Black	MIL-PRF-81705	10	00000000	0000
1 15/32"	1 1/2"	5/8"	1 11/16"	10⁵	140°	Durometer 45D	Black	MIL-PRF-81705	25	00000000	00000
1 31/32"	2"	5/8"	2 5/32"	10⁵	140°	Durometer 45D	Black	MIL-PRF-81705	10	00000000	00000

Antistatic Round Plugs

Keep equipment safe from electrical currents with these plugs that have a surface resistivity of less than 10¹² ohms. All meet the static requirements of MIL-PRF-81705. They fit electrical connectors with straight threads as well as unthreaded bayonet-type connectors.

For technical drawings and 3-D models, click on a part number.

Polyethylene Plastic
For ID	For Thread Dia.	Ht.	Head Dia.	Max. Surface Resistivity, ohms	Max. Temp., °F	Hardness	Color	Specifications Met	Pkg. Qty.		Pkg.
15/32"	1/2"	5/8"	11/16"	10¹²	140°	Durometer 60A	Pink	MIL-PRF-81705	100	00000000	000000
19/32"	5/8"	5/8"	3/4"	10¹²	140°	Durometer 60A	Pink	MIL-PRF-81705	100	00000000	00000
27/32"	7/8"	5/8"	1 1/16"	10¹²	140°	Durometer 60A	Pink	MIL-PRF-81705	50	00000000	00000
1 15/32"	1 1/2"	5/8"	1 11/16"	10¹²	140°	Durometer 60A	Pink	MIL-PRF-81705	50	00000000	00000
1 31/32"	2"	5/8"	2 5/32"	10¹²	140°	Durometer 60A	Pink	MIL-PRF-81705	25	00000000	00000