3 BSPT Pipe Fittings | McMaster-Carr

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BSPT

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	Material Material

	Type Type


Adapter	Flange

	Connection Type Connection Type


Pipe	Hose

	Connection Style Connection Style

	Shape Shape

	Straight

	System of Measurement System of Measurement

Inch

Metric

	For Hose ID For Hose ID

	Body Shape Body Shape


Hex	Round

	Length Length

	Gender Gender

Female

Male

	For Pipe Material For Pipe Material

Plastic

Steel

	Cam-and-Groove Component Cam-and-Groove Component


Plug	Socket

	For Use With For Use With

	Maximum Pressure Maximum Pressure

	Coupling Size Coupling Size

	Flange OD Flange OD

7 1/2"

	For Bolt Diameter For Bolt Diameter

3/4"

	Number of Bolt Holes Number of Bolt Holes

	For Pipe Schedule For Pipe Schedule


40	80

	Pressure Class Pressure Class

150

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

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13 Products

How to Identify and Measure Fittings

Pipe size is an industry designation, not the actual size. View information about how to measure threaded and unthreaded pipe and pipe fittings.

Low-Pressure Steel Threaded Pipe Flanges

Use these flanges for low-pressure applications in noncorrosive environments. Bolt two flanges of the same size together with a gasket (sold separately) to create an access point within a line.

For technical drawings and 3-D models, click on a part number.

Flanges

Front

Raised Surface on Back

For Use With: Air, Natural Gas, Oil, Steam, Water
Pressure Class: 150
Specifications Met:
NPT: ASME B16.5, ASTM A105, MSS SP-25
BSPT: ASTM A105
Pipe Nipples and Pipe: Use Schedule 40 steel
Fittings: Use Class 125 or 150 iron and steel

			Bolt Hole
Pipe Size	Flange OD	For Bolt Dia.	Dia.	No. of	Bolt Circle Dia.	Max. Pressure	Max. Steam Pressure	Material		Each
BSPT
3	7 1/2"	3/4"	3/4"	4	6"	285 psi @ 72° F	230 psi @ 300° F	Black-Coated Steel	0000000	000000

Thick-Wall Plastic Pipe Fittings for Water

Connect these fittings to Schedule 80 pipe–they have thicker, stronger walls than standard-wall fittings so they can handle heavy duty industrial plumbing and water supply applications, such as water processing, waste water treatment, and irrigation. Fittings are plastic for good corrosion resistance. They meet ASTM specifications and testing requirements for material quality.

Fittings for drinking water meet NSF/ANSI Standard 61.

Note: For fittings that are not rated for pressure, you can use the pressure rating of the plastic pipe as a reference. Threaded fittings are limited to 50% of the rated pressure of the pipe.

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

For technical drawings and 3-D models, click on a part number.

Straight Adapters, Female Threaded Pipe

For Use With: Drinking Water, Water
Maximum Temperature: 140° F
Specifications Met: ASTM D1784, NSF/ANSI 61
Pipe Nipples and Pipe: Use Schedule 80 PVC Plastic
Flanges: Use Class 150 PVC Plastic

BSPT × NPT Threads
Pipe Size	Material	O-Ring Material	Color	Max. Pressure		Each
3	PVC Plastic	EPDM Rubber	Dark Gray	200 psi @ 72° F	0000000	0000000

Standard-Wall Plastic Pipe Fittings for Water

Connect these fittings to Schedule 40 plastic pipe–they are the industry standard for residential and commercial low-pressure plumbing and water supply applications. They are plastic for good corrosion resistance.

Fittings for drinking water meet NSF/ANSI Standard 61.

BSPT threaded pipe connections meet ISO 7-1.

Attach socket-connect ends to unthreaded pipe or another socket-connect fitting with a PVC primer and cement (also known as solvent weld).

To prevent leaks in threaded connections, apply a sealant to the male threads. For plastic threads, apply a non-hardening, plastic-compatible sealant. Tape or sealants with PTFE are not recommended for plastic-to-plastic connections. Fittings that meet ASTM D1784, ASTM D1785, and ASTM D4066 adhere to specifications and testing requirements for material quality.

Note: For fittings that are not rated for pressure, you can use the pressure rating of the plastic pipe as a reference. Threaded fittings are limited to 50% of the rated pressure of the pipe.

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

For technical drawings and 3-D models, click on a part number.

Straight Adapters, Female Socket Connect × Male Threaded Pipe

For Use With: Drinking Water, Water
Maximum Temperature: 140° F
Specifications Met: See table
Pipe Nipples and Pipe: Use Schedule 40 PVC Plastic
Flanges: Use Schedule 40 PVC Plastic

BSPT Threads
Pipe Size	Socket Depth	Material	Color	Max. Pressure	Specifications Met		Each
3	1 7/8"	PVC Plastic	White	130 psi @ 72° F	ASTM D1784, NSF/ANSI 61, ISO 7-1	00000000	000000

Easy-Fit Barbed Hose Fittings for Air and Water

Low-profile barbs and a longer first barb allow for a smoother, easier installation than other barbed fittings. Slide the barbed end into rubber hose and secure with a clamp.

Zinc-plated steel fittings have slightly better corrosion resistance than unplated steel fittings. Fittings with a threaded end are also known as hose nipples.

For technical drawings and 3-D models, click on a part number.

Straight Adapters, Hose × BSPT Male Threaded Pipe

Straight Adapter with Round Body

Maximum Pressure: See table
Maximum Vacuum: Not Rated, except For 2 1/2" to 4" Hose IDs: 26 in. of Hg @ 72° F
Temperature Range: -20° to 200° F, except For 2 1/2" to 4" Hose IDs: -20° to 400° F
Attachment Type: Use Band-and-Buckle Clamps, except For 2 1/2" to 4" Hose IDs: Use Worm-Drive Clamps, Bolt Clamps or Band-and-Buckle Clamps
Specifications Met: See table

Zinc-Plated Steel
For Hose ID	Pipe Size	Body Shape	Max. Pressure	Specifications Met		Each
3"	3	Round	50 psi @ 72° F	ASTM A53	0000000	000000

Metal Cam-and-Groove Hose Couplings for Water

A complete coupling consists of a plug and a socket (both sold separately) that allow you to quickly connect and disconnect medium-to large-diameter hose lines. To connect, insert the plug into the socket and press the levers down. The levers fit snugly into the groove on the plug’s body and force the plug against the gasket to form a tight seal. To disconnect, lift both levers and pull out the plug.

Plugs with male threaded end are also known as F adapters.

Sockets with male threaded end are also known as B couplers.

Aluminum couplings are lighter in weight than brass plugs and sockets. They have good abrasion and corrosion resistance. Brass couplings are softer than aluminum plugs and sockets, so they’re easier to thread together. They have good corrosion resistance.

Note: To ensure a correct fit, make sure that the plug and socket have the same coupling size.

Warning: Relieve all pressure before disconnecting the couplings. Do not use cam-and-groove couplings with compressed air or gas.

For technical drawings and 3-D models, click on a part number.

Straight Plugs, BSPT Male Threaded Pipe

Maximum Pressure: See table
Temperature Range: -65° to 250° F
Specifications Met: Fed. Spec. A-A-59326
Compatible With: Andrews Cam-and-Groove Couplings, Dixon Cam-and-Groove Couplings, Ever-Tite Cam-and-Groove Couplings, PT Coupling Cam-and-Groove Couplings

Anodized Aluminum
Coupling Size	Plug OD	Pipe Size	Max. Pressure		Each
3	3 5/8"	3	200 psi @ 72° F	00000000	000000
Brass
3	3 5/8"	3	200 psi @ 72° F	000000000	000000

Straight Sockets, BSPT Male Threaded Pipe

Maximum Pressure: See table
Temperature Range: -65° to 250° F
Specifications Met: Fed. Spec. A-A-59326
Compatible With: Andrews Cam-and-Groove Couplings, Dixon Cam-and-Groove Couplings, Ever-Tite Cam-and-Groove Couplings, PT Coupling Cam-and-Groove Couplings

			Levers
Coupling Size	Socket ID	Pipe Size	No. of	Material	Pull Ring Material	Max. Pressure		Each
Anodized Aluminum
3	3 5/8"	3	2	316 Stainless Steel	Zinc-Plated Steel	200 psi @ 72° F	00000000	000000

Plastic Cam-and-Groove Hose Couplings for Water

Made of polypropylene, these couplings are lighter in weight than metal cam-and-groove couplings and have good abrasion and corrosion resistance. A complete coupling consists of a plug and a socket (both sold separately) that allow you to quickly connect and disconnect medium-to large-diameter hose lines. To connect, insert the plug into the socket and press the levers down. The levers fit snugly into the groove on the plug’s body and force the plug against the gasket to form a tight seal. To disconnect, lift both levers and pull out the plug.

Straight plugs with male threaded end are also known as F adapters.

Sockets with male threaded end are also known as B couplers.

Note: To ensure a correct fit, make sure that the plug and socket have the same coupling size.

Warning: Relieve all pressure before disconnecting the couplings. Do not use cam-and-groove couplings with compressed air or gas.

For technical drawings and 3-D models, click on a part number.

Straight Plugs, BSPT Male Threaded Pipe

Maximum Pressure: See table
Temperature Range: -15° to 150° F
Specifications Met: Fed. Spec. A-A-59326

Polypropylene Plastic
Coupling Size	Plug OD	Pipe Size	Max. Pressure		Each
3	3 5/8"	3	50 psi @ 72° F	00000000	000000

Straight Sockets, BSPT Male Threaded Pipe

Maximum Pressure: See table
Temperature Range: -15° to 150° F
Specifications Met: Fed. Spec. A-A-59326

			Levers
Coupling Size	Socket ID	Pipe Size	No. of	Material	Pull Ring Material	Max. Pressure		Each
Polypropylene Plastic
3	3"	3	2	304 Stainless Steel	304 Stainless Steel	50 psi @ 72° F	00000000	000000

Easy-Fit Barbed Hose Fittings for Chemicals

Low-profile barbs and a longer first barb allow for a smoother, easier installation than other barbed fittings. Slide the barbed end into rubber hose and secure with a clamp. Fittings are 316 stainless steel, which has excellent corrosion resistance to withstand a variety of chemicals.

Adapters are also known as hose nipples; they adapt a barbed end to a threaded end.

For technical drawings and 3-D models, click on a part number.

Straight Adapters, Hose × BSPT Male Threaded Pipe

Round Body

For Use With: Acetone, Isopropyl Alcohol, Mineral Oil, Sodium Hydroxide
Maximum Pressure: See table
Maximum Vacuum: 26 in. of Hg @ 72° F
Temperature Range: -20° to 400° F
Attachment Type: Use Worm-Drive Clamps, Bolt Clamps or Band-and-Buckle Clamps
Specifications Met: ASTM A312

316 Stainless Steel
For Hose ID	Pipe Size	Body Shape	Max. Pressure		Each
3"	3	Round	50 psi @ 72° F	0000000	0000000

Plastic Cam-and-Groove Hose Couplings for Chemicals and Petroleum

Made of plastic, these couplings are lighter in weight than metal cam-and-groove hose couplings, yet have the chemical resistance to withstand gasoline and other harsh substances. A complete coupling consists of a plug and a socket (both sold separately) that allow you to quickly connect and disconnect medium-to large-diameter hose lines. To connect, insert the plug into the socket and press the levers down. The levers fit snugly into the groove on the plug’s body and force the plug against the gasket to form a tight seal. To disconnect, lift both levers and pull out the plug.

Plugs with male threaded end are also known as F adapters. Nylon plugs and sockets have better strength than PVDF plugs and sockets. They have good corrosion and chemical resistance to handle gasoline and fuel applications.

Note: To ensure a correct fit, make sure that the plug and socket have the same coupling size.

Warning: Relieve all pressure before disconnecting the couplings. Do not use cam-and-groove couplings with compressed air or gas.

For technical drawings and 3-D models, click on a part number.

Straight Plugs, Male Threaded Plug

For Use With:
Nylon Plastic: Diesel Fuel, Gasoline, Varnish
PVDF Plastic: Diesel Fuel, Gasoline, Nitric Acid, Phosphoric Acid
Maximum Pressure: See table
Temperature Range:
Nylon Plastic: -30° to 200° F
PVDF Plastic: -20° to 250° F
Specifications Met: Fed. Spec. A-A-59326

Nylon Plastic
Coupling Size	Plug OD	Pipe Size	Thread Type	Color	Max. Pressure		Each
3	3 5/8"	3	BSPT	Yellow	100 psi @ 72° F	0000000	000000

Cam-and-Groove Hose Couplings for Food and Beverage

Made of FDA listed materials, these couplings are suitable for food and beverage applications and won’t impart tastes or odors to the product. They also meet NSF/ANSI 61 safety standards for use with drinking water systems. A complete coupling consists of a plug and a socket (both sold separately) that allow you to quickly connect and disconnect medium-to large-diameter hose lines. To connect, insert the plug into the socket and press the levers down. The levers fit snugly into the groove on the plug’s body and force the plug against the gasket to form a tight seal. To disconnect, lift both levers and pull out the plug. Plugs and sockets are polypropylene, which is lightweight with good abrasion and corrosion resistance.

Plugs with male threaded end are also known as F adapters.

Sockets with male threaded end are also known as B couplers.

Note: To ensure a correct fit, make sure that the plug and socket have the same coupling size.

Warning: Relieve all pressure before disconnecting the couplings. Do not use cam-and-groove couplings with compressed air or gas.

For technical drawings and 3-D models, click on a part number.

Straight Plugs, Male Threaded Pipe

Maximum Pressure: See table
Temperature Range: 10° to 180° F
Specifications Met: FDA Compliant 21 CFR 176.170
FDA Compliant 21 CFR 178.3297
NSF/ANSI 61

Polypropylene Plastic
Coupling Size	Plug OD	Pipe Size	Thread Type	Color	Max. Pressure		Each
3	3 5/8"	3	BSPT	White	50 psi @ 72° F	000000000	000000

Straight Sockets, Male Threaded Pipe

Maximum Pressure: See table
Temperature Range: 10° to 180° F
Specifications Met: FDA Compliant 21 CFR 176.170
FDA Compliant 21 CFR 178.3297
NSF/ANSI 61

					Levers
Coupling Size	Socket ID	Pipe Size	Thread Type	Color	No. of	Material	Pull Ring Material	Max. Pressure		Each
Polypropylene Plastic
3	3 5/8"	3	BSPT	White	2	304 Stainless Steel	Stainless Steel	50 psi @ 72° F	000000000	000000