MIL-DTL-52618 Pipe Fittings

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Maximum Pressure @ Temperature

150 psi @ 72° F

For Flange Class

125

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100 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 Aluminum Threaded Pipe Fittings

In addition to being lightweight, these aluminum fittings offer good corrosion resistance. Use them in low-pressure flow applications. To prevent cracking, do not tighten more than a 1/4-turn past hand tight.

Inline tees are also known as branch tees. Right-angle tees are also known as run tees.

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

Bushing Straight Reducing Adapters

For Use With: Air, Oil, Water
Specifications Met: ASME B1.20.1, MIL-DTL-52618
Pressure Class: 150
Pipe Nipples and Pipe: Use Schedule 40 aluminum
Flanges: Use Class 125 aluminum

Pipe Size
(A)	(B)	Max. Pressure		Each
NPT Male × NPT Female
1/4	1/8	150 psi @ 72° F	000000000	00000
3/8	1/8	150 psi @ 72° F	000000000	0000
3/8	1/4	150 psi @ 72° F	000000000	0000
1/2	1/8	150 psi @ 72° F	000000000	0000
1/2	1/4	150 psi @ 72° F	000000000	0000
1/2	3/8	150 psi @ 72° F	000000000	0000
3/4	1/4	150 psi @ 72° F	000000000	0000
3/4	3/8	150 psi @ 72° F	000000000	0000
3/4	1/2	150 psi @ 72° F	000000000	0000
1	1/4	150 psi @ 72° F	000000000	0000
1	3/8	150 psi @ 72° F	000000000	0000
1	1/2	150 psi @ 72° F	000000000	0000
1	3/4	150 psi @ 72° F	000000000	0000
1 1/4	1/2	150 psi @ 72° F	000000000	00000
1 1/4	3/4	150 psi @ 72° F	000000000	00000
1 1/4	1	150 psi @ 72° F	000000000	00000
1 1/2	1/2	150 psi @ 72° F	000000000	00000
1 1/2	3/4	150 psi @ 72° F	000000000	00000
1 1/2	1	150 psi @ 72° F	000000000	00000
1 1/2	1 1/4	150 psi @ 72° F	000000000	00000
2	1/2	150 psi @ 72° F	000000000	00000
2	3/4	150 psi @ 72° F	000000000	00000
2	1	150 psi @ 72° F	000000000	00000
2	1 1/4	150 psi @ 72° F	000000000	00000
2	1 1/2	150 psi @ 72° F	000000000	00000
2 1/2	1	150 psi @ 72° F	000000000	00000
2 1/2	2	150 psi @ 72° F	000000000	00000
3	1 1/2	150 psi @ 72° F	000000000	00000
3	2	150 psi @ 72° F	000000000	00000
3	2 1/2	150 psi @ 72° F	000000000	00000
4	2	150 psi @ 72° F	000000000	000000
4	3	150 psi @ 72° F	000000000	000000
6	3	150 psi @ 72° F	000000000	000000
6	4	150 psi @ 72° F	000000000	000000

Straight Reducers

For Use With: Air, Oil, Water
Specifications Met: ASME B1.20.1, MIL-DTL-52618
Pressure Class: 150
Pipe Nipples and Pipe: Use Schedule 40 aluminum
Flanges: Use Class 125 aluminum

Pipe Size
(A)	(B)	Max. Pressure		Each
NPT Female
1/4	1/8	150 psi @ 72° F	000000000	000000
3/8	1/8	150 psi @ 72° F	000000000	00000
3/8	1/4	150 psi @ 72° F	000000000	00000
1/2	1/4	150 psi @ 72° F	000000000	00000
1/2	3/8	150 psi @ 72° F	000000000	00000
3/4	1/4	150 psi @ 72° F	000000000	00000
3/4	3/8	150 psi @ 72° F	000000000	00000
3/4	1/2	150 psi @ 72° F	000000000	00000
1	1/2	150 psi @ 72° F	000000000	00000
1	3/4	150 psi @ 72° F	000000000	00000
1 1/4	1/2	150 psi @ 72° F	000000000	00000
1 1/4	3/4	150 psi @ 72° F	000000000	00000
1 1/4	1	150 psi @ 72° F	000000000	00000
1 1/2	3/4	150 psi @ 72° F	000000000	00000
1 1/2	1	150 psi @ 72° F	000000000	00000
1 1/2	1 1/4	150 psi @ 72° F	000000000	00000
2	1	150 psi @ 72° F	000000000	00000
2	1 1/4	150 psi @ 72° F	000000000	00000
2	1 1/2	150 psi @ 72° F	000000000	00000
2 1/2	1 1/2	150 psi @ 72° F	000000000	00000
2 1/2	2	150 psi @ 72° F	000000000	00000
3	2	150 psi @ 72° F	000000000	000000
3	2 1/2	150 psi @ 72° F	000000000	000000
4	3	150 psi @ 72° F	000000000	000000
6	4	150 psi @ 72° F	000000000	000000

90° Elbow Reducers

For Use With: Air, Oil, Water
Specifications Met: ASME B1.20.1, MIL-DTL-52618
Pressure Class: 150
Pipe Nipples and Pipe: Use Schedule 40 aluminum
Flanges: Use Class 125 aluminum

Pipe Size
(A)	(B)	Max. Pressure		Each
NPT Female
1/2	1/4	150 psi @ 72° F	000000000	000000
1/2	3/8	150 psi @ 72° F	000000000	00000
3/4	1/2	150 psi @ 72° F	000000000	00000
1	1/2	150 psi @ 72° F	000000000	00000
1	3/4	150 psi @ 72° F	000000000	00000
1 1/4	1	150 psi @ 72° F	000000000	00000
1 1/2	1	150 psi @ 72° F	000000000	00000
1 1/2	1 1/4	150 psi @ 72° F	000000000	00000
2	1 1/2	150 psi @ 72° F	000000000	00000
3	2	150 psi @ 72° F	000000000	000000
4	3	150 psi @ 72° F	000000000	000000

45° Elbow Adapters

For Use With: Air, Oil, Water
Specifications Met: ASME B1.20.1, MIL-DTL-52618
Pressure Class: 150
Pipe Nipples and Pipe: Use Schedule 40 aluminum
Flanges: Use Class 125 aluminum

NPT Female × NPT Male
Pipe Size	Max. Pressure		Each
1/2	150 psi @ 72° F	000000000	000000
3/4	150 psi @ 72° F	000000000	00000
1	150 psi @ 72° F	000000000	00000
1 1/4	150 psi @ 72° F	000000000	00000
1 1/2	150 psi @ 72° F	000000000	00000
2	150 psi @ 72° F	000000000	00000
2 1/2	150 psi @ 72° F	000000000	000000

Inline Tee Reducers

For Use With: Air, Oil, Water
Pressure Class: 150
Pipe Nipples and Pipe: Use Schedule 40 aluminum
Flanges: Use Class 125 aluminum

Pipe Size
(A)	(B)	Max. Pressure		Each
NPT Female
1/2	1/4	150 psi @ 72° F	000000000	000000
1/2	3/4	150 psi @ 72° F	000000000	00000
3/4	3/8	150 psi @ 72° F	000000000	00000
3/4	1/2	150 psi @ 72° F	000000000	00000
1	1/2	150 psi @ 72° F	000000000	00000
1	1 1/2	150 psi @ 72° F	000000000	00000
1 1/4	3/4	150 psi @ 72° F	000000000	00000
1 1/2	1/2	150 psi @ 72° F	000000000	00000
1 1/2	3/4	150 psi @ 72° F	000000000	00000
1 1/2	1	150 psi @ 72° F	000000000	00000
1 1/2	2	150 psi @ 72° F	000000000	00000
2	3/4	150 psi @ 72° F	000000000	000000
2	1	150 psi @ 72° F	000000000	000000
3	2	150 psi @ 72° F	000000000	000000
4	2	150 psi @ 72° F	000000000	000000

Right-Angle Tee Reducers

For Use With: Air, Oil, Water
Specifications Met: ASME B1.20.1, MIL-DTL-52618
Pressure Class: 150
Pipe Nipples and Pipe: Use Schedule 40 aluminum
Flanges: Use Class 125 aluminum

Pipe Size
(A)	(B)	Max. Pressure		Each
NPT Female
1/2	3/4	150 psi @ 72° F	000000000	000000
1/2	1	150 psi @ 72° F	000000000	00000
3/4	1/2	150 psi @ 72° F	000000000	00000
3/4	1	150 psi @ 72° F	000000000	00000
1	3/4	150 psi @ 72° F	000000000	00000
1	1 1/2	150 psi @ 72° F	000000000	00000
1 1/2	3/4	150 psi @ 72° F	000000000	00000
2	1 1/2	150 psi @ 72° F	000000000	000000