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    35 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.

    Premium Low-Pressure Stainless Steel Threaded Pipe Fittings

    Unlike other stainless steel fittings, these are cast in the U.S. for superior quality. As another marker of quality, they come with a certificate with a traceable lot number and test report that guarantees material composition. All fittings except plugs adhere to ANSI/MSS SP-114 standards for heat treating, material thickness, and marking. It’s the highest quality standard for Pressure Class 150 low-pressure stainless steel fittings. They also meet either ASTM A351 or A479 requirements for parts that will be used in pressure systems. These stainless steel fittings are more corrosion resistant than steel fittings, and almost as strong.
    Material Certificate Icon
    Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
    External-Hex-Drive Plugs
    Image of Product. Male. Front orientation. Pipe and Fittings. Premium Low-Pressure Stainless Steel Threaded Pipe Fittings, External-Hex-Drive Plugs, Threaded Fitting Connection, Male, Hex Body.

    Male

    NPTF Thread—NPTF (Dryseal) threads are compatible with NPT threads.
    316 Stainless Steel—Fittings are the most corrosion resistant. They stand up to wet environments, just like 304 stainless steel fittings, but unlike 304 stainless steel, they will not corrode from salt water, chlorine solutions, and chemicals.
    316 Stainless Steel
    Pipe
    Size
    Construction
    Pressure
    Class
    Body
    Shape
    Max. Pressure
    @ Temp.
    Max. Steam Pressure
    @ Temp.
    Each
    NPTF Male
    1/2
    		Solid1000
    		Hex1,000 psi @ 72° F650 psi @ 350° F5288N38000000
    3/4
    		Solid1000
    		Hex1,000 psi @ 72° F650 psi @ 350° F5288N3900000
    1
    		Solid1000
    		Hex1,000 psi @ 72° F650 psi @ 350° F5288N4100000
    1 1/4
    		Solid1000
    		Hex1,000 psi @ 72° F650 psi @ 350° F5288N4200000
    1 1/2
    		Solid1000
    		Hex1,000 psi @ 72° F650 psi @ 350° F5288N4300000
    2
    		Solid1000
    		Hex1,000 psi @ 72° F650 psi @ 350° F5288N4400000
     
    External-Square-Drive Plugs
    Image of Product. Male. Front orientation. Pipe and Fittings. Premium Low-Pressure Stainless Steel Threaded Pipe Fittings, External-Square-Drive Plugs, Threaded Fitting Connection, Male, Square Body.

    Male

    NPTF Thread—NPTF (Dryseal) threads are compatible with NPT threads.
    316 Stainless Steel—Fittings are the most corrosion resistant. They stand up to wet environments, just like 304 stainless steel fittings, but unlike 304 stainless steel, they will not corrode from salt water, chlorine solutions, and chemicals.
    316 Stainless Steel
    Pipe
    Size
    Construction
    Pressure
    Class
    Body
    Shape
    Max. Pressure
    @ Temp.
    Max. Steam Pressure
    @ Temp.
    Each
    NPTF Male
    1/2
    		Solid1000
    		Square1,000 psi @ 72° F650 psi @ 350° F5288N29000000
    3/4
    		Solid1000
    		Square1,000 psi @ 72° F650 psi @ 350° F5288N3100000
    1
    		Solid1000
    		Square1,000 psi @ 72° F650 psi @ 350° F5288N3200000
    1 1/4
    		Solid1000
    		Square1,000 psi @ 72° F650 psi @ 350° F5288N3300000
    1 1/2
    		Solid1000
    		Square1,000 psi @ 72° F650 psi @ 350° F5288N3400000
    2
    		Solid1000
    		Square1,000 psi @ 72° F650 psi @ 350° F5288N3500000
     

    Medium-Pressure Stainless Steel Threaded Pipe Fittings

    A step up in strength from our low-pressure pipe fittings, these handle up to 1,000 psi. They’re made of stainless steel for excellent corrosion resistance.
    Caps
    Image of Product. Female. Front orientation. Pipe and Fittings. Medium-Pressure Stainless Steel Threaded Pipe Fittings, Caps, Female, Threaded Fitting Connection.

    Female

    304 Stainless Steel—Fittings hold up in humid, damp, and washdown environments but will corrode if exposed to salt water or chemicals.
    316 Stainless Steel—Fittings are the most corrosion resistant. They stand up to wet environments, just like 304 stainless steel fittings, but unlike 304 stainless steel, they will not corrode from salt water, chlorine solutions, and chemicals.
    304 Stainless Steel
    316 Stainless Steel
    Pipe
    Size
    Pressure
    Class
    Max. Pressure
    @ Temp.
    Max. Steam Pressure
    @ Temp.
    Each
    Max. Pressure
    @ Temp.
    Max. Steam Pressure
    @ Temp.
    Each
    NPT Female
    1/8
    		1000
    		1,000 psi @ 72° F650 psi @ 350° F4464K84000001,000 psi @ 72° F650 psi @ 350° F4452K45100000
    1/4
    		1000
    		1,000 psi @ 72° F650 psi @ 350° F4464K8500001,000 psi @ 72° F650 psi @ 350° F4452K4520000
    3/8
    		1000
    		1,000 psi @ 72° F650 psi @ 350° F4464K8600001,000 psi @ 72° F650 psi @ 350° F4452K4530000
    1/2
    		1000
    		1,000 psi @ 72° F650 psi @ 350° F4464K8700001,000 psi @ 72° F650 psi @ 350° F4452K45400000
    3/4
    		1000
    		1,000 psi @ 72° F650 psi @ 350° F4464K88000001,000 psi @ 72° F650 psi @ 350° F4452K45500000
    1
    		1000
    		1,000 psi @ 72° F650 psi @ 350° F4464K89000001,000 psi @ 72° F650 psi @ 350° F4452K45600000
    1 1/4
    		1000
    		1,000 psi @ 72° F650 psi @ 350° F4464K91000001,000 psi @ 72° F650 psi @ 350° F4452K45700000
    1 1/2
    		1000
    		1,000 psi @ 72° F650 psi @ 350° F4464K92000001,000 psi @ 72° F650 psi @ 350° F4452K45800000
    2
    		1000
    		1,000 psi @ 72° F650 psi @ 350° F4464K93000001,000 psi @ 72° F650 psi @ 350° F4452K45900000
    2 1/2
    		1000
    		1,000 psi @ 72° F650 psi @ 350° F4464K164000001,000 psi @ 72° F650 psi @ 350° F4452K634000000
    3
    		1000
    		1,000 psi @ 72° F650 psi @ 350° F4464K1650000001,000 psi @ 72° F650 psi @ 350° F4452K635000000
    4
    		1000
    		1,000 psi @ 72° F650 psi @ 350° F4464K166000000—————0
     
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