Plastic Drum Caps | McMaster-Carr

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Material

Seal Material

Pipe Size

Thread Type

Color

Drum Plug Type

Gender

Diameter

Thread Size

Export Control Classification Number (ECCN)

EAR99

Drum Capacity

30 gal.

55 gal.

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

REACH

RoHS

DFARS Specialty Metals

Maximum Temperature

Drum Style

Maximum Pressure

Minimum Pressure

Height

Minimum Opening Pressure

1 psi

Maximum Opening Pressure

Closing Ring Type

Thickness

For Use With

Certification

36 Products

Drum Plugs


Style A	Style B	Style C

Style D	Style H	Style J

For installation and removal of these plugs, use drum-plug wrenches.

Polyethylene


Style A	Style B	Style C	Style D

Style D—Style D have a M64 thread size, which is also known as Buttress threads.

Drum Plug Caps—Drum-plug caps (sold separately) fit over drum plugs to provide dust protection as well as evidence of tampering. They have a breakaway seal and are for one-time use.

Drum Plugs												Drum Plug Caps			Drum Plug Crimpers
Style	Drum Plug Type	Color	Seal Material	Pipe/Thread Size	Gender	Max. Temp., ° F	Opening Pressure Range, psi	Features	Pkg. Qty.		Pkg.	Pkg. Qty.		Pkg.		Each
A	Pressure Relief, Vacuum Relief	White	—	3/4 NPSM	Male	125	1 to 4	Vent	5	9030T81	000000	10	8983T31	00000	8983T44	0000000
A	Standard	White	—	3/4 NPSM	Male	125	—	—	5	9030T61	0000	10	8983T31	0000	8983T44	000000
B	Pressure Relief, Vacuum Relief	White	EPDM	2 NPSM	Male	125	1 to 4	Vent	5	9030T82	00000	10	8983T32	00000	8983T45	000000
C	Standard	White	—	2 NPSM	Male	125	—	3/4 NPSM Faucet Knockout	5	9030T63	00000	10	8983T32	00000	8983T45	000000
D	Standard	White	EPDM	M64 Metric	Male	125	—	3/4 NPSM Faucet Knockout	5	9030T64	00000	10	8983T32	00000	8983T45	000000

Polypropylene


Style A	Style B	Style C	Style D

Style D—Style D have a M64 thread size, which is also known as Buttress threads.

Drum Plug Caps—Drum-plug caps (sold separately) fit over drum plugs to provide dust protection as well as evidence of tampering. They have a breakaway seal and are for one-time use.

Drum Plugs												Drum Plug Caps			Drum Plug Crimpers
Style	Drum Plug Type	Color	Seal Material	Pipe/Thread Size	Gender	Max. Temp., ° F	Opening Pressure Range, psi	Features	Pkg. Qty.		Pkg.	Pkg. Qty.		Pkg.		Each
A	Pressure Relief, Vacuum Relief	Gray	—	3/4 NPSM	Male	125	1 to 4	Vent	5	8983T35	000000	10	8983T31	00000	8983T44	0000000
A	Standard	Gray	—	3/4 NPSM	Male	125	—	—	5	8983T41	00000	10	8983T31	0000	8983T44	000000
B	Pressure Relief, Vacuum Relief	White	EPDM	2 NPSM	Male	125	1 to 4	Vent	5	8983T36	00000	10	8983T32	00000	8983T45	000000
C	Standard	Gray	—	2 NPSM	Male	125	—	3/4 NPSM Faucet Knockout	5	8983T43	00000	10	8983T32	00000	8983T45	000000
D	Standard	White	—	M64 Metric	Male	125	—	3/4 NPSM Faucet Knockout	5	8983T37	00000	10	8983T32	00000	8983T45	000000

316 Stainless Steel


Style H	Style J

PTFE Seal—Plugs with PTFE seals stand up to corrosive chemicals such as nitric acid.

Drum Plug Caps—Drum-plug caps (sold separately) fit over drum plugs to provide dust protection as well as evidence of tampering. They have a breakaway seal and are for one-time use.

Drum Plugs							Drum Plug Caps
Style	Drum Plug Type	Seal Material	Pipe/Thread Size	Gender		Each	Pkg. Qty.		Pkg.
H	Standard	PTFE	3/4 NPSM	Male	8983T612	000000	10	8983T27	00000
J	Standard	PTFE	2 NPSM	Male	8983T611	00000	10	8983T28	00000

Drum Covers

Polyethylene

	Dia.	Thk.	Color	Max. Temp., ° F	Certification		Each
For Open-Head Drums with Nut-and-Bolt Closing Rings



	55	23 3/8"	0.04"	Black	175	—	4503T12	000000


	55	23 3/8"	0.04"	Clear	175	—	4503T26	00000
	55	23 1/2"	0.04"	Gray	175	C-UL Listed, UL Listed	4503T18	00000


	For Open-Head Drums



			55	23 3/8"	0.04"	Gray	175	C-UL Listed, UL Listed	4503T19	00000


			For Closed-Head Drums



					30	18 1/2"	0.04"	Gray	175	C-UL Listed, UL Listed	4503T15	00000


					55	22 5/8"	0.04"	Gray	175	C-UL Listed, UL Listed	4503T16	00000
					55	22 3/4"	0.04"	Black	175	—	4503T14	00000
					55	22 3/4"	0.04"	Clear	175	—	4503T25	00000

Dust Covers for Drums

PVC—PVC covers resist chemicals better than polyethylene covers.

	Color	Thk., mil	Max. Temp., ° F	Pkg. Qty.		Pkg.
PVC



	55	White	8	Not Rated	1	4104T2	000000


	55	Clear	8	Not Rated	1	4104T9	0000


	Polyethylene



			55	Clear	4	175	5	4104T5	00000


			30	Clear	4	175	5	4104T4	00000

Antistatic Dust Covers for Drums

An additive on these polyethylene covers prevents static charge from building up on the surface.

	Color	Thk., mil	Max. Temp., ° F	Performance	Surface Resistivity, ohm/sq.	Pkg. Qty.		Pkg.
Polyethylene



	55	Pink	4	175	Antistatic	1× 10^11	5	4104T8	000000


	30	Pink	4	175	Antistatic	1× 10^11	5	4104T7	00000

Lockable Breather Vents with Cap

Secure access to vented openings in pipe and tanks—the cap can be locked to prevent tampering. These breather vents allow you to add a filling port to your hydraulic tank while protecting against excess pressure and vacuum. Use them to stop debris from entering your tank. Breather vents mount on top of standard tank openings with included hardware. Padlock is not included.

Flange Mount


Steel with 304 Stainless Steel Screen	Steel with Nylon Plastic Screen

	Max. Pressure	Ht.	For Use With	Cap Material	Screen Material	No. of Bolt Holes	Bolts Included	Removes Particle Size Down To, μm	For Max. Padlock Shackle Dia.		Each
Steel Body



	2 1/8"	Not Rated	6 1/8"	Air, Oil	Steel	Nylon	6	Yes	10	3/8"	3853N12	000000


	2 1/8"	Not Rated	6 1/8"	Air, Oil	Steel	Nylon	6	Yes	40	3/8"	3853N11	00000

Drum Plug Gaskets

Add a gasket or replace one that's worn out to ensure a tight seal.

	Max. Temp., ° F	Pkg. Qty.		Pkg.
For 3/4 Pipe Size



	Polyethylene	350	50	8983T25	000000


	For 2 Pipe Size



			Polyethylene	350	50	8983T23	00000