ISO 6149 Pipe Plugs | McMaster-Carr

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Maximum Pressure @ Temperature

5,600 psi @ 72° F

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

Yes

Fabrication

Machined

Export Control Classification Number (ECCN)

EAR99

DFARS Specialty Metals

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REACH

20 Products

About Pipe and Fittings

Measure your pipe and fittings to identify their pipe size, thread size, schedule, and thread type. Then, find compatible components.

Compact Extreme-Pressure Steel Threaded Pipe Fittings

These fittings are strong enough to handle extreme pressures, yet small enough to fit into cramped spaces. They are zinc-plated steel, which have better corrosion resistance than plain steel fittings. BSPP and metric male threads have either a gasket, or a gasket and washer, to prevent leaks.

Plugs with External Hex Drive

BSPP and Metric
Male Threads with
Gasket and Washer

For Use With: See table
Specifications Met: See table

Metric Male
Thread Size	Plug Construction	Max. Pressure	Material	For Use With	Specifications Met		Each
M10 × 1 mm	Solid	5,600 psi @ 72° F	Zinc Plated Steel	Air, Hydraulic Fluid, Oil, Water	DIN 7631, ISO 6149, ISO 9974	4936K675	00000
M12 × 1.5 mm	Solid	5,600 psi @ 72° F	Zinc Plated Steel	Air, Hydraulic Fluid, Oil, Water	DIN 7631, ISO 6149, ISO 9974	4936K889	0000
M14 × 1.5 mm	Solid	5,600 psi @ 72° F	Zinc Plated Steel	Air, Hydraulic Fluid, Oil, Water	DIN 7631, ISO 6149, ISO 9974	4936K891	0000
M16 × 1.5 mm	Solid	5,600 psi @ 72° F	Zinc Plated Steel	Air, Hydraulic Fluid, Oil, Water	DIN 7631, ISO 6149, ISO 9974	4936K892	0000
M18 × 1.5 mm	Solid	5,600 psi @ 72° F	Zinc Plated Steel	Air, Hydraulic Fluid, Oil, Water	DIN 7631, ISO 6149, ISO 9974	4936K893	0000
M20 × 1.5 mm	Solid	5,600 psi @ 72° F	Zinc Plated Steel	Air, Hydraulic Fluid, Oil, Water	DIN 7631, ISO 6149, ISO 9974	4936K894	00000
M22 × 1.5 mm	Solid	5,600 psi @ 72° F	Zinc Plated Steel	Air, Hydraulic Fluid, Oil, Water	DIN 7631, ISO 6149, ISO 9974	4936K895	00000
M24 × 1.5 mm	Solid	5,600 psi @ 72° F	Zinc Plated Steel	Air, Hydraulic Fluid, Oil, Water	DIN 7631, ISO 6149, ISO 9974	4936K896	00000
M26 × 1.5 mm	Solid	5,600 psi @ 72° F	Zinc Plated Steel	Air, Hydraulic Fluid, Oil, Water	DIN 7631, ISO 6149, ISO 9974	4936K897	00000
M30 × 2 mm	Solid	5,600 psi @ 72° F	Zinc Plated Steel	Air, Hydraulic Fluid, Oil, Water	DIN 7631, ISO 6149, ISO 9974	4936K898	00000

Replacement Washers

Temperature Range: -20° to 230° F

For Metric Male
For Thread Size	Gasket Material	Thickness		Each
M10	Buna-N Rubber	2mm	4936K647	00000
M12	Buna-N Rubber	1.5mm	4936K648	0000
M14	Buna-N Rubber	1.5mm	4936K649	0000
M16	Buna-N Rubber	1.5mm	4936K651	0000
M18	Buna-N Rubber	1.5mm	4936K652	0000
M20	Buna-N Rubber	1.5mm	4936K653	0000
M22	Buna-N Rubber	2mm	4936K654	0000
M24	Buna-N Rubber	2mm	4936K655	0000
M26	Buna-N Rubber	2.5mm	4936K656	0000
M30	Buna-N Rubber	2mm	4936K658	0000