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    83 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.

    Fitting Type

    Fitting Type

    Low-Pressure Aluminum Threaded Pipe Fittings

    Lightweight and rust resistant, these aluminum fittings are used in low-pressure flow applications. To prevent cracking, do not tighten more than a 1/4-turn past hand-tight.
    Straight Adapters
    Image of Product. NPT Female × Butt Weld. Front orientation. Pipe and Fittings. Low-Pressure Aluminum Threaded Pipe Fittings, Straight Adapters, Threaded Fitting Connection, Butt-Weld Fitting Connection, Female.

    NPT Female ×

    Butt Weld

    Threaded Fitting Connection—Threaded female x butt weld straight adapters are also known as half couplings.
    Pipe
    Size
    (A)
    (B)
    Pressure
    Class
    Material
    Max. Pressure
    @ Temp.
    Each
    NPT Female × Butt Weld
    1/8
    		1/8
    		150
    		6061 Aluminum150 psi @ 72° F44705K91600000
    1/4
    		1/4
    		150
    		6061 Aluminum150 psi @ 72° F44705K9170000
    3/8
    		3/8
    		150
    		6061 Aluminum150 psi @ 72° F44705K9180000
    1/2
    		1/2
    		150
    		6061 Aluminum150 psi @ 72° F44705K9190000
    3/4
    		3/4
    		150
    		6061 Aluminum150 psi @ 72° F44705K9110000
    1
    		1
    		150
    		6061 Aluminum150 psi @ 72° F44705K9210000
    1 1/4
    		1 1/4
    		150
    		6061 Aluminum150 psi @ 72° F44705K9220000
    1 1/2
    		1 1/2
    		150
    		6061 Aluminum150 psi @ 72° F44705K9230000
    2
    		2
    		150
    		6061 Aluminum150 psi @ 72° F44705K92400000
    2 1/2
    		2 1/2
    		150
    		6061 Aluminum150 psi @ 72° F44705K92600000
    3
    		3
    		150
    		6061 Aluminum150 psi @ 72° F44705K92700000
    4
    		4
    		150
    		6061 Aluminum150 psi @ 72° F44705K92800000
    6
    		6
    		150
    		6061 Aluminum150 psi @ 72° F44705K931000000
     
    Straight Adapters with Extension for Tanks
    Image of Product. NPT Female × Butt Weld. Front orientation. Pipe and Fittings. Low-Pressure Aluminum Threaded Pipe Fittings, Straight Adapters with Extension for Tanks, Threaded Fitting Connection, Butt-Weld Fitting Connection, Female, For Flat Tank Surfaces.

    NPT Female × Butt

    Weld

    Fittings for tanks create an inlet or outlet connection on the surface of any tank, pressure vessel, or drum.
    Adapters with extension fit tightly into the hole, which keeps the fitting steady during welding.
    Threaded Fitting Connection—Threaded female x butt weld straight adapters are also known as half couplings.
    Pipe
    Size
    For Hole
    Diameter (B)
    OD
    For Tank
    Surface (B)
    Material
    Max. Pressure
    @ Temp.
    Each
    NPT Female × Butt Weld
    1/8
    		7/8"1 5/16"Flat6061 AluminumNot Rated8694T4100000
    1/4
    		7/8"1 5/16"Flat6061 AluminumNot Rated8694T4200000
    3/8
    		1 3/16"1 7/16"Flat6061 AluminumNot Rated8694T4300000
    1/2
    		1 1/8"1 5/8"Flat6061 AluminumNot Rated8694T4400000
    3/4
    		1 5/16"2"Flat6061 AluminumNot Rated8694T4500000
    1
    		1 11/16"2 1/4"Flat6061 AluminumNot Rated8694T4600000
    1 1/4
    		1 15/16"2 9/16"Flat6061 AluminumNot Rated8694T4700000
    1 1/2
    		2 1/4"2 15/16"Flat6061 AluminumNot Rated8694T4800000
    2
    		2 5/8"3 3/8"Flat6061 AluminumNot Rated8694T4900000
    3
    		3 11/16"4 5/8"Flat6061 AluminumNot Rated8694T51000000
    4
    		4 3/4"5 13/16"Flat6061 AluminumNot Rated8694T52000000
     
    Hex-Drive Plugs
    Image of Product. Male. Front orientation. Pipe and Fittings. Low-Pressure Aluminum Threaded Pipe Fittings, Hex-Drive Plugs, Threaded Fitting Connection, Male.

    Male

    Anodized 2011 Aluminum—Anodized and powder-coated fittings have a decorative matte black finish.
    Pipe
    Size
    Dash
    Size
    Construction
    Pressure
    Class
    Material
    Color
    Max. Pressure
    @ Temp.
    Mil. Spec.
    Each
    NPT Male
    1/16
    		—Solid150
    		Anodized 2011 AluminumBlack150 psi @ 72° FFed. Spec. QQ-A-200/83867T36100000
    1/8
    		02Solid150
    		Anodized 2011 AluminumBlack150 psi @ 72° FFed. Spec. QQ-A-200/83867T3620000
    1/4
    		04Solid150
    		Anodized 2011 AluminumBlack150 psi @ 72° FFed. Spec. QQ-A-200/83867T3630000
    3/8
    		06Solid150
    		Anodized 2011 AluminumBlack150 psi @ 72° FFed. Spec. QQ-A-200/83867T3640000
    1/2
    		08Solid150
    		Anodized 2011 AluminumBlack150 psi @ 72° FFed. Spec. QQ-A-200/83867T36500000
    3/4
    		12Solid150
    		Anodized 2011 AluminumBlack150 psi @ 72° FFed. Spec. QQ-A-200/83867T36600000
    1
    		16Solid150
    		Anodized 2011 AluminumBlack150 psi @ 72° FFed. Spec. QQ-A-200/83867T36700000
    1 1/4
    		20Solid150
    		Anodized 2011 AluminumBlack150 psi @ 72° FFed. Spec. QQ-A-200/83867T36800000
     
    BSPT Male
    1/8
    		02Solid150
    		Anodized 2011 AluminumBlack150 psi @ 72° FFed. Spec. QQ-A-200/83867T3690000
    1/4
    		04Solid150
    		Anodized 2011 AluminumBlack150 psi @ 72° FFed. Spec. QQ-A-200/83867T3710000
    3/8
    		06Solid150
    		Anodized 2011 AluminumBlack150 psi @ 72° FFed. Spec. QQ-A-200/83867T3720000
    1/2
    		08Solid150
    		Anodized 2011 AluminumBlack150 psi @ 72° FFed. Spec. QQ-A-200/83867T37300000
     
    External-Hex-Drive Plugs
    Image of Product. Male. Front orientation. Pipe and Fittings. Low-Pressure Aluminum Threaded Pipe Fittings, External-Hex-Drive Plugs, Threaded Fitting Connection, Male, Hex Body.

    Male

    Pipe
    Size
    Construction
    Pressure
    Class
    Body
    Shape
    Material
    Max. Pressure
    @ Temp.
    Mil. Spec.
    Each
    NPT Male
    1/16
    		Solid150
    		Hex6061 Aluminum150 psi @ 72° FFed. Spec. QQ-A-200/83867T37800000
     
    External-Hex-Drive Plugs with Gasket
    Image of Product. Male. Front orientation. Pipe and Fittings. Low-Pressure Aluminum Threaded Pipe Fittings, External-Hex-Drive Plugs with Gasket, Threaded Fitting Connection, Male, Hex Body.

    Male

    Thread Size
    Dash
    Size
    Construction
    Pressure
    Class
    Body
    Shape
    Material
    Max. Pressure
    @ Temp.
    Gasket
    Material
    Mil. Spec.
    Each
    UNF Male
    10-32
    		—Solid150
    		Hex6061 Aluminum150 psi @ 72° FBuna-N
    		Fed. Spec. QQ-A-200/83867T37900000
    7/16"-20
    		06Solid150
    		Hex6061 Aluminum150 psi @ 72° FBuna-N
    		Fed. Spec. QQ-A-200/83867T3820000
    9/16"-18
    		04Solid150
    		Hex6061 Aluminum150 psi @ 72° FBuna-N
    		Fed. Spec. QQ-A-200/83867T3810000
    3/4"-16
    		08Solid150
    		Hex6061 Aluminum150 psi @ 72° FBuna-N
    		Fed. Spec. QQ-A-200/83867T38300000
     
    Metric Male
    M3 × 0.5 mm—Solid150
    		Hex6061 Aluminum150 psi @ 72° FBuna-N
    		Fed. Spec. QQ-A-200/83867T3740000
    M6 × 1 mm—Solid150
    		Hex6061 Aluminum150 psi @ 72° FBuna-N
    		Fed. Spec. QQ-A-200/83867T3750000
    M10 × 1.25 mm—Solid150
    		Hex6061 Aluminum150 psi @ 72° FBuna-N
    		Fed. Spec. QQ-A-200/83867T3760000
    M12 × 1.25 mm—Solid150
    		Hex6061 Aluminum150 psi @ 72° FBuna-N
    		Fed. Spec. QQ-A-200/83867T3770000
     
    180° Bend Connectors
    Image of Product. Front orientation. Pipe Traps. Low-Pressure Aluminum Threaded Pipe Fittings.
    180° bend connectors are also known as U-bends.
    Pipe
    Size
    Material
    Max. Pressure
    @ Temp.
    Shape
    Each
    NPT Female
    1/2
    		356 Aluminum150 psi @ 72° F180° Bend44705K479000000
    3/4
    		356 Aluminum150 psi @ 72° F180° Bend44705K48100000
    1
    		356 Aluminum150 psi @ 72° F180° Bend44705K48200000
     
    Locknuts
    Image of Product. Front orientation. Pipe Locknuts.
    NPSL Thread—NPSL (National Pipe Straight Locknut) threads are compatible with NPT threads.
    Pipe
    Size
    Finished
    Material
    Max. Pressure
    @ Temp.
    Each
    NPSL Female
    1/4
    		6061 Aluminum150 psi @ 72° F44705K41200000
    3/8
    		6061 Aluminum150 psi @ 72° F44705K4130000
    1/2
    		356 Aluminum150 psi @ 72° F44705K4140000
    3/4
    		356 Aluminum150 psi @ 72° F44705K41500000
    1
    		356 Aluminum150 psi @ 72° F44705K41600000
    1 1/4
    		356 Aluminum150 psi @ 72° F44705K41700000
     

    High-Pressure Aluminum Threaded Pipe Fittings

    Our strongest aluminum threaded fittings handle pressures up to 3,000 psi. They’re made of aluminum, which is lightweight and resists rust in wet environments. Also known as Pressure Class 3000 fittings.
    Straight Connectors
    Image of Product. Female. Front orientation. Pipe and Fittings. High-Pressure Aluminum Threaded Pipe Fittings, Straight Connectors, Female, Threaded Fitting Connection.

    Female

    Pipe
    Size
    Pressure
    Class
    Material
    Max. Pressure
    @ Temp.
    Mil. Spec.
    Each
    NPT Female
    1/4
    		3000
    		6061 Aluminum3,000 psi @ 72° FFed. Spec. QQ-A-200/83867T61000000
    1/2
    		3000
    		6061 Aluminum3,000 psi @ 72° FFed. Spec. QQ-A-200/83867T6200000
    3/4
    		3000
    		6061 Aluminum3,000 psi @ 72° FFed. Spec. QQ-A-200/83867T6300000
    1
    		3000
    		6061 Aluminum3,000 psi @ 72° FFed. Spec. QQ-A-200/83867T6400000
     
    Union Straight Connectors
    Image of System. Exploded View. Front orientation. Exploded view. Pipe and Fittings. High-Pressure Aluminum Threaded Pipe Fittings, Union Straight Connectors, Female, Threaded Fitting Connection, Hex Body.

    Exploded View

    Union fittings separate into three pieces so you can access your line without unthreading pipe connections.
    Pipe
    Size
    Pressure
    Class
    Body
    Shape
    Material
    Max. Pressure
    @ Temp.
    Mil. Spec.
    Each
    NPT Female
    1
    		3000
    		Hex6061 Aluminum1,500 psi @ 72° FFed. Spec. QQ-A-200/83867T5410000000
     
    Straight Adapters
    Image of Product. Female x Butt Weld. Front orientation. Pipe and Fittings. High-Pressure Aluminum Threaded Pipe Fittings, Straight Adapters, Threaded Fitting Connection, Butt-Weld Fitting Connection, Female.

    Female x Butt

    Weld

    Threaded Fitting Connection—Threaded female x butt weld straight adapters are also known as half couplings.
    Pipe
    Size
    (A)
    (B)
    Pressure
    Class
    Material
    Max. Pressure
    @ Temp.
    Mil. Spec.
    Each
    NPT Female × Butt Weld
    1/4
    		1/4
    		3000
    		6061 Aluminum3,000 psi @ 72° FFed. Spec. QQ-A-200/83867T71000000
    1/2
    		1/2
    		3000
    		6061 Aluminum3,000 psi @ 72° FFed. Spec. QQ-A-200/83867T7200000
    3/4
    		3/4
    		3000
    		6061 Aluminum3,000 psi @ 72° FFed. Spec. QQ-A-200/83867T7300000
    1
    		1
    		3000
    		6061 Aluminum3,000 psi @ 72° FFed. Spec. QQ-A-200/83867T7400000
     
    Bushing Straight Reducing Adapters
    Image of Product. Male x Female. Front orientation. Contains Annotated. Pipe and Fittings. High-Pressure Aluminum Threaded Pipe Fittings, Bushing Straight Reducing Adapters, Female, Threaded Fitting Connection, Male, Hex Body.

    Male x Female

    Pipe
    Size
    (A)
    (B)
    Pressure
    Class
    Body
    Shape
    Material
    Max. Pressure
    @ Temp.
    Mil. Spec.
    Each
    NPT Male × NPT Female
    1/2
    		1/4
    		3000
    		Hex6061 Aluminum3,000 psi @ 72° FFed. Spec. QQ-A-200/83867T91000000
    3/4
    		1/2
    		3000
    		Hex6061 Aluminum3,000 psi @ 72° FFed. Spec. QQ-A-200/83867T9200000
    1
    		1/2
    		3000
    		Hex6061 Aluminum3,000 psi @ 72° FFed. Spec. QQ-A-200/83867T9300000
    1
    		3/4
    		3000
    		Hex6061 Aluminum3,000 psi @ 72° FFed. Spec. QQ-A-200/83867T9400000
     
    Straight Reducers
    Image of Product. Female x Female. Front orientation. Contains Annotated. Pipe and Fittings. High-Pressure Aluminum Threaded Pipe Fittings, Straight Reducers, Female, Threaded Fitting Connection.

    Female x Female

    Pipe
    Size
    (A)
    (B)
    Pressure
    Class
    Material
    Max. Pressure
    @ Temp.
    Mil. Spec.
    Each
    NPT Female × NPT Female
    1/2
    		1/4
    		3000
    		6061 Aluminum3,000 psi @ 72° FFed. Spec. QQ-A-200/83867T75000000
    3/4
    		1/2
    		3000
    		6061 Aluminum3,000 psi @ 72° FFed. Spec. QQ-A-200/83867T7600000
    1
    		1/2
    		3000
    		6061 Aluminum3,000 psi @ 72° FFed. Spec. QQ-A-200/83867T7700000
    1
    		3/4
    		3000
    		6061 Aluminum3,000 psi @ 72° FFed. Spec. QQ-A-200/83867T7800000
     
    Caps
    Image of Product. Female. Front orientation. Pipe and Fittings. High-Pressure Aluminum Threaded Pipe Fittings, Caps, Female, Threaded Fitting Connection.

    Female

    Pipe
    Size
    Pressure
    Class
    Material
    Max. Pressure
    @ Temp.
    Mil. Spec.
    Each
    NPT Female
    1/4
    		3000
    		6061 Aluminum3,000 psi @ 72° FFed. Spec. QQ-A-200/83867T81000000
    1/2
    		3000
    		6061 Aluminum3,000 psi @ 72° FFed. Spec. QQ-A-200/83867T8200000
    3/4
    		3000
    		6061 Aluminum3,000 psi @ 72° FFed. Spec. QQ-A-200/83867T8300000
    1
    		3000
    		6061 Aluminum3,000 psi @ 72° FFed. Spec. QQ-A-200/83867T8400000
     
    External-Hex-Drive Plugs
    Image of Product. Male. Front orientation. Pipe and Fittings. High-Pressure Aluminum Threaded Pipe Fittings, External-Hex-Drive Plugs, Threaded Fitting Connection, Male.

    Male

    Pipe
    Size
    Construction
    Pressure
    Class
    Body
    Shape
    Material
    Max. Pressure
    @ Temp.
    Mil. Spec.
    Each
    NPT Male
    1/4
    		Solid3000
    		Hex6061 Aluminum3,000 psi @ 72° FFed. Spec. QQ-A-200/83867T65000000
    1/2
    		Solid3000
    		Hex6061 Aluminum3,000 psi @ 72° FFed. Spec. QQ-A-200/83867T6600000
    3/4
    		Solid3000
    		Hex6061 Aluminum3,000 psi @ 72° FFed. Spec. QQ-A-200/83867T6700000
    1
    		Solid3000
    		Hex6061 Aluminum3,000 psi @ 72° FFed. Spec. QQ-A-200/83867T6800000
     
    External-Square-Drive Plugs
    Image of Product. Male. Front orientation. Pipe and Fittings. High-Pressure Aluminum Threaded Pipe Fittings, External-Square-Drive Plugs, Threaded Fitting Connection, Male.

    Male

    Pipe
    Size
    Construction
    Pressure
    Class
    Body
    Shape
    Material
    Max. Pressure
    @ Temp.
    Mil. Spec.
    Each
    NPT Male
    1/4
    		Solid3000
    		Square6061 Aluminum3,000 psi @ 72° FFed. Spec. QQ-A-200/83867T55000000
    1/2
    		Solid3000
    		Square6061 Aluminum3,000 psi @ 72° FFed. Spec. QQ-A-200/83867T5600000
    3/4
    		Solid3000
    		Square6061 Aluminum3,000 psi @ 72° FFed. Spec. QQ-A-200/83867T5700000
    1
    		Solid3000
    		Square6061 Aluminum3,000 psi @ 72° FFed. Spec. QQ-A-200/83867T5800000
     
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