Finger Grip Plugs | McMaster-Carr

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13 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.

Plastic Pipe Fittings for Oil

Made of corrosion-resistant plastic, these fittings won’t deteriorate when used in oil applications. They also have high strength and impact resistance. Apply a non-hardening, plastic-compatible sealant to the male threads to prevent leaks. Tape or sealants with PTFE are not recommended for plastic-to-plastic threaded connections. When making a threaded connection be careful not to overtighten the threads. To prevent cracks and leaks, finger tighten the fitting, then wrench-tighten one to two turns.

Warning: Never use plastic pipe fittings and pipe with compressed air or gas.

Plugs with Finger Grip, Male Threaded Pipe

For Use With: Oil
Maximum Temperature: 140° F

BSPP
Pipe Size	Material	Color	Maximum Pressure	Pkg. Qty.		Pkg.
1/4	Polyethylene Plastic	Red	Not Rated	10	4956N12	00000
1/2	Polyethylene Plastic	Red	Not Rated	10	4956N13	0000
5/8	Polyethylene Plastic	Red	Not Rated	10	4956N14	0000
3/4	Polyethylene Plastic	Red	Not Rated	10	4956N15	0000
1	Polyethylene Plastic	Red	Not Rated	10	4956N17	0000
1 1/4	Polyethylene Plastic	Red	Not Rated	5	4956N18	0000

Low-Pressure Aluminum Threaded Pipe Fittings

In addition to being lightweight, these aluminum fittings offer good corrosion resistance. Use them in low-pressure flow applications. To prevent cracking, do not tighten more than a 1/4-turn past hand tight.

DIN 3852 fittings meet DIN standards for mating surface outer diameter. They have a Buna-N rubber gasket that resists grease, hydraulic oil, and motor oil—plus mild chemicals and water. The gasket stays in a groove undercut in the mating face, which prevents it from dropping out and from extruding when fittings are tightened. Black anodized and powder-coated fittings have a decorative matte black finish.

Adjust finger-grip fittings by hand, no tools required.

Plugs with Finger Grip

BSPP and Metric
Male Threads
with Gasket

For Use With: Air, Oil, Water
Specifications Met: DIN 3852
Pipe Nipples and Pipe: Use aluminum

					Black Powder-Coated Aluminum Alloy		Aluminum Alloy
Pipe Size	Thread Size	Thread Pitch, mm	Plug Construction	Max. Pressure		Each		Each
BSPP Male
3/8	__	__	Solid	Not Rated	______	00	3979N122	00000
1/2	__	__	Solid	Not Rated	3979N115	000000	______	00
3/4	__	__	Solid	Not Rated	3979N116	00000	______	00
1	__	__	Solid	Not Rated	3979N117	00000	3979N125	00000
Metric Male
1/2	M20	1.5	Solid	Not Rated	3979N112	00000	3979N119	00000