BSPT Gauges | McMaster-Carr

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63 Products

About Pipe Size

About Pressure Gauges

Dual Scale With Center Back Connection

Bottom Connection

Center Back Connection

These are the most commonly used pressure gauges. Use them with pumps, filters, regulators, and in process lines to measure and display pressure.

Gauges with 304 stainless steel case or ABS plastic case have better corrosion resistance than gauges with brass or steel case.

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

ABS Plastic Case with Brass Connection—Dual Scale (psi, kPa)

For Use With: Air, Water, Hydraulic Fluid, Carbon Dioxide, and Natural Gas
Accuracy: ±2% Mid Scale (Grade B)
Mount with the dial face upright

Available Pressure Ranges
Pressure Range		Graduation Marks		Numeric Increments
psi	kPa	psi	kPa	psi	kPa
0 to 30	0 to 200	1	5	5	50
0 to 60	0 to 400	2	10	10	100
0 to 100	0 to 700	2	20	20	100
0 to 160	0 to 1,100	5	20	20	200
0 to 200	0 to 1,400	5	50	40	200
0 to 300	0 to 2,000	10	50	50	500
0 to 600	0 to 4,000	20	100	100	1,000
0 to 1,000	0 to 7,000	20	200	200	1,000

						Bottom Connection		Center Back Connection
Dial Diameter	Pipe Size	Environment Temp. Range, °F	Process Temp. Range, °F	Case Color	Mounting Orientation		Each		Each
BSPT Male
1 5/8"	1/8	-40° to 120°	-40° to 120°	Black	Upright	0000000	000000	0000000	000000
2"	1/4	-40° to 120°	-40° to 120°	Black	Upright	0000000	00000	0000000	00000
2 1/2"	1/4	-40° to 120°	-40° to 120°	Black	Upright	0000000	00000	0000000	00000

Miniature Pressure Gauges

Center Back Connection

The small dial on these gauges allows for installation in tight spaces. Use them with pumps, filters, regulators, and in process lines to measure and display pressure.

Gauges with ABS plastic case are more corrosion resistant than brass-case gauges.

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

ABS Plastic Case with Brass Connection—Single Scale (psi)

For Use With: Air, Water, Hydraulic Fluid, Ethyl Alcohol, Nitrogen, and Natural Gas
Accuracy: ±5% Full Scale (Grade D)

Available Pressure Ranges
Pressure Range, psi	Graduation Marks, psi	Numeric Increments, psi
0 to 60	5	10
0 to 100	5	20
0 to 160	10	40
0 to 200	10	40
0 to 300	25	50

						Center Back Connection
Dial Diameter	Pipe Size	Environment Temp. Range, °F	Process Temp. Range, °F	Case Color	Mounting Orientation		Each
BSPT Male
29/32"	1/8	-40° to 150°	-40° to 150°	Black	Any	00000000	000000

Thread Identifier Sets

Set includes calipers and gauges to identify external and internal threads.

			Container
For Use With	For Thread Type	For Thread Location	Type	Material	Includes		Each
Inch, Metric
Steel
Screws, Bolts, Threaded Rods, Nuts, Pipe	NPT, UNC, UNF, BSPT, BSPP, Metric	External/Internal	Folding Case	Plastic	Caliper, Instruction Book, Two Steel Angle Gauges, Two Steel Gauges	000000	000000

Pipe Thread and Thread Pitch Identifiers

In addition to checking NPT and BSPT pipe sizes, use the two included gauges for measuring thread pitch.

For Thread Type	For Pipe Size	For Gender	Wd.	Ht.	Thick.	Thread Size Identifier Material	Thread Pitch Identifier Material	Color		Each
BSPT, NPT	1/8, 1/4, 3/8, 1/2, 3/4, 1, 1 1/4, 1 1/2, 2	Female, Male	9"	4 1/4"	1/4"	Plastic	Steel	Blue	000000	00000

Grease Fitting Size Identifiers

Take the guesswork out of determining the thread type and size of a grease fitting. Screw the shank of a grease fitting into the labeled holes of these identifiers until you find the one that fits.

Inch, Metric
For Thread Type	For Thread Location	For Thread Size	For Screw Size	For Pipe Size	Wd.	Ht.	Thick.		Each
Aluminum
NPT, SAE-LT, BSW, UNF, BSPT, BSF, Metric	External	3/16"-32, 1/4"-20, 1/4"-26, 1/4"-28, 5/16"-18, 5/16"-22, 5/16"-24, 3/8"-20, 3/8"-24, 1/2"-12, M6 × 0.75 mm, M6 × 1 mm, M8 × 1 mm, M8 × 1.25 mm, M10 × 1 mm, M10 × 1.5 mm	1/8", 1/4"	1/8, 1/4, 3/8	8 1/2"	3"	1/4"	0000000	000000

Pipe Size Measuring Kits

Kits contain pipe fittings in a variety of sizes so you can determine the size of a pipe or fitting without measuring.

			BSPT Thread
No. of Pieces	Includes	Material		Each
6	One 90° male × female elbow in each pipe size: 1/8, 1/4, 3/8, 1/2, 3/4, 1	304 Stainless Steel	000000	000000
9	One 90° male × female elbow in each pipe size: 1/8, 1/4, 3/8, 1/2, 3/4, 1, 1 1/4, 1 1/2, 2	304 Stainless Steel	000000	00000