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    84 Products
    About Pipe and Fittings
    industrial info icon

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

    FM-Approved Low-Pressure Iron and Steel Threaded Pipe Fittings

    Suitable for use in fire-protection applications, these fittings are cast iron, so they’re brittle enough to be opened with a sledgehammer. They’re also known as Pressure Class 125 fittings. Use in noncorrosive environments.
    Straight Reducers
    Image of Product. NPT Female × NPT Female. Front orientation. Contains Annotated. Pipe and Fittings. FM-Approved Low-Pressure Iron and Steel Threaded Pipe Fittings, Straight Reducers, Female, Threaded Fitting Connection.

    NPT Female × NPT Female

    Pipe
    Size
    (A)
    (B)
    Pressure
    Class
    Material
    Max. Pressure
    @ Temp.
    Max. Steam Pressure
    @ Temp.
    Certification
    Each
    NPT Female × NPT Female
    3/4
    		1/2
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K53000000
    1
    		1/2
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K1100000
    1
    		3/4
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K1200000
    1 1/4
    		3/4
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K5400000
    1 1/4
    		1
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K1300000
    1 1/2
    		1
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K5500000
    1 1/2
    		1 1/4
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K1400000
    2
    		1/2
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K5800000
    2
    		3/4
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K5700000
    2
    		1
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K1500000
    2
    		1 1/4
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K5600000
    2
    		1 1/2
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K1600000
    2 1/2
    		2
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K1700000
    3
    		2
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K18000000
     
    Offset Straight Reducers
    Image of Product. NPT Female × NPT Female. Front orientation. Contains Annotated. Pipe and Fittings. FM-Approved Low-Pressure Iron and Steel Threaded Pipe Fittings, Offset Straight Reducers, Female, Threaded Fitting Connection.

    NPT Female × NPT Female

    Offset straight reducers are also known as eccentric reducers; they connect one pipe to another smaller-diameter pipe and have the centers offset so your line can drain.
    Pipe
    Size
    (A)
    (B)
    Pressure
    Class
    Material
    Max. Pressure
    @ Temp.
    Max. Steam Pressure
    @ Temp.
    Certification
    Each
    NPT Female × NPT Female
    3/4
    		1/2
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K62000000
    1
    		1/2
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K6600000
    1
    		3/4
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K6400000
    1 1/4
    		1/2
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K7300000
    1 1/4
    		3/4
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K7100000
    1 1/4
    		1
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K6700000
    1 1/2
    		1/2
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K8100000
    1 1/2
    		3/4
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K7800000
    1 1/2
    		1
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K7700000
    1 1/2
    		1 1/4
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K7500000
    2
    		1
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K85000000
    2
    		1 1/4
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K84000000
    2
    		1 1/2
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K82000000
     
    90° Elbow Connectors
    Image of Product. NPT Female. Front orientation. Pipe and Fittings. FM-Approved Low-Pressure Iron and Steel Threaded Pipe Fittings, 90° Elbow Connectors, Female, Threaded Fitting Connection.

    NPT Female

    Pipe
    Size
    Pressure
    Class
    Material
    Max. Pressure
    @ Temp.
    Max. Steam Pressure
    @ Temp.
    Certification
    Each
    NPT Female
    1/2
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K2100000
    3/4
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K220000
    1
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K230000
    1 1/4
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K2400000
    1 1/2
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K2500000
    2
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K2600000
    2 1/2
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K2700000
    3
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K28000000
    4
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K49000000
     
    45° Elbow Connectors
    Image of Product. NPT Female. Front orientation. Pipe and Fittings. FM-Approved Low-Pressure Iron and Steel Threaded Pipe Fittings, 45° Elbow Connectors, Female, Threaded Fitting Connection.

    NPT Female

    Pipe
    Size
    Pressure
    Class
    Material
    Max. Pressure
    @ Temp.
    Max. Steam Pressure
    @ Temp.
    Certification
    Each
    NPT Female
    1/2
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K31000000
    3/4
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K3200000
    1
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K3300000
    1 1/4
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K3400000
    1 1/2
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K3500000
    2
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K3600000
    2 1/2
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K3700000
    3
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K38000000
    4
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K51000000
     
    Tee Connectors
    Image of Product. NPT Female. Front orientation. Pipe and Fittings. FM-Approved Low-Pressure Iron and Steel Threaded Pipe Fittings, Tee Connectors, Female, Threaded Fitting Connection.

    NPT Female

    Pipe
    Size
    Pressure
    Class
    Material
    Max. Pressure
    @ Temp.
    Max. Steam Pressure
    @ Temp.
    Certification
    Each
    NPT Female
    1/2
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K41000000
    3/4
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K4200000
    1
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K4300000
    1 1/4
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K4400000
    1 1/2
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K4500000
    2
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K4600000
    2 1/2
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K4700000
    3
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K48000000
    4
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K52000000
     
    Inline Tee Reducers
    Image of Product. NPT Female. Front orientation. Contains Annotated. Pipe and Fittings. FM-Approved Low-Pressure Iron and Steel Threaded Pipe Fittings, Inline Tee Reducers, Female, Threaded Fitting Connection.

    NPT Female

    Inline tees are also known as branch tees.
    Pipe
    Size
    (A)
    (B)
    (C)
    Pressure
    Class
    Material
    Max. Pressure
    @ Temp.
    Max. Steam Pressure
    @ Temp.
    Certification
    Each
    NPT Female × NPT Female × NPT Female
    3/4
    		1/2
    		3/4
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K61000000
    1
    		1/2
    		1
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K6500000
    1
    		3/4
    		1
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K6300000
    1 1/4
    		1/2
    		1 1/4
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K6800000
    1 1/4
    		3/4
    		1 1/4
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K7200000
    1 1/4
    		1
    		1 1/4
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K6900000
    1 1/2
    		1/2
    		1 1/2
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K8300000
    1 1/2
    		3/4
    		1 1/2
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K7900000
    1 1/2
    		1
    		1 1/2
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K7600000
    1 1/2
    		1 1/4
    		1 1/2
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K7400000
    2
    		1/2
    		2
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K9600000
    2
    		3/4
    		2
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K9400000
    2
    		1
    		2
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K9200000
    2
    		1 1/4
    		2
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K8900000
    2
    		1 1/2
    		2
    		125
    		Cast Iron125 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K8600000
     
    Square-Drive Plugs
    Image of Product. NPT Male. Front orientation. Pipe and Fittings. FM-Approved Low-Pressure Iron and Steel Threaded Pipe Fittings, Square-Drive Plugs, Threaded Fitting Connection, Male.

    NPT Male

    Pipe
    Size
    Construction
    Pressure
    Class
    Material
    Max. Pressure
    @ Temp.
    Max. Steam Pressure
    @ Temp.
    Certification
    Each
    NPT Male
    1
    		Solid125
    		Cast Iron175 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K105000000
    1 1/4
    		Solid125
    		Cast Iron175 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K10600000
    1 1/2
    		Solid125
    		Cast Iron175 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K10700000
    2
    		Solid125
    		Cast Iron175 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K10800000
    2 1/2
    		Solid125
    		Cast Iron175 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K10900000
    3
    		Solid125
    		Cast Iron175 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K11100000
    4
    		Solid125
    		Cast Iron175 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K112000000
     
    External-Square-Drive Plugs
    Image of Product. NPT Male. Front orientation. Pipe and Fittings. FM-Approved Low-Pressure Iron and Steel Threaded Pipe Fittings, External-Square-Drive Plugs, Threaded Fitting Connection, Male.

    NPT Male

    Pipe
    Size
    Construction
    Pressure
    Class
    Body
    Shape
    Material
    Max. Pressure
    @ Temp.
    Max. Steam Pressure
    @ Temp.
    Certification
    Each
    NPT Male
    1
    		Solid125
    		SquareCast Iron175 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K11300000
    1 1/4
    		Solid125
    		SquareCast Iron175 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K1140000
    1 1/2
    		Solid125
    		SquareCast Iron175 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K1150000
    2
    		Solid125
    		SquareCast Iron175 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K11600000
    2 1/2
    		Solid125
    		SquareCast Iron175 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K11700000
    3
    		Solid125
    		SquareCast Iron175 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K11800000
    4
    		Solid125
    		SquareCast Iron175 psi @ 72° F125 psi @ 350° FFM Approved, UL Listed
    		68115K11900000
     

    Low-Pressure Iron and Steel Threaded Pipe Locknuts

    Image of Product. Front orientation. Pipe Locknuts. Low-Pressure Iron and Steel Threaded Pipe Locknuts.
    Use these locknuts for low-pressure applications in noncorrosive environments.
    Locknuts thread onto the male end of a fitting to provide extra holding power so the fitting won’t loosen from vibration.
    NPTF (Dryseal) threads, NPSC (National Pipe Straight Coupling) threads, and NPSL (National Pipe Straight Locknut) threads are compatible with NPT threads.
    For Pipe
    Pipe
    Size
    Hex
    Wd.
    Lg.
    Max. Pressure
    @ Temp.
    Max. Steam Pressure
    @ Temp.
    For Use With
    Pressure
    Class
    Material
    Schedule
    Material
    For Flange
    Material
    Specs. Met
    Each
    NPT Female
    3
    		4 1/4"11/16"175 psi @ 72° F125 psi @ 350° FAir, Natural Gas, Oil, Steam, Water125
    		Iron40
    		SteelIron, SteelASME B1.20.1, ASME B16.444605K488000000
     
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