MIL-DTL-52618 Pipe Fittings

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About Pipe and Fittings

Measure your pipe and fittings to identify their pipe size, thread size, schedule, and thread type. Then, find compatible components.

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.

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	44705K279	00000
3/8	1/8	150 psi @ 72° F	44705K393	0000
3/8	1/4	150 psi @ 72° F	44705K281	0000
1/2	1/8	150 psi @ 72° F	44705K439	0000
1/2	1/4	150 psi @ 72° F	44705K394	0000
1/2	3/8	150 psi @ 72° F	44705K282	0000
3/4	1/4	150 psi @ 72° F	44705K395	0000
3/4	3/8	150 psi @ 72° F	44705K292	0000
3/4	1/2	150 psi @ 72° F	44705K283	0000
1	1/4	150 psi @ 72° F	44705K441	0000
1	3/8	150 psi @ 72° F	44705K621	0000
1	1/2	150 psi @ 72° F	44705K293	0000
1	3/4	150 psi @ 72° F	44705K284	0000
1 1/4	1/2	150 psi @ 72° F	44705K623	00000
1 1/4	3/4	150 psi @ 72° F	44705K442	00000
1 1/4	1	150 psi @ 72° F	44705K285	00000
1 1/2	1/2	150 psi @ 72° F	44705K443	00000
1 1/2	3/4	150 psi @ 72° F	44705K396	00000
1 1/2	1	150 psi @ 72° F	44705K294	00000
1 1/2	1 1/4	150 psi @ 72° F	44705K286	00000
2	1/2	150 psi @ 72° F	44705K625	00000
2	3/4	150 psi @ 72° F	44705K444	00000
2	1	150 psi @ 72° F	44705K287	00000
2	1 1/4	150 psi @ 72° F	44705K397	00000
2	1 1/2	150 psi @ 72° F	44705K288	00000
2 1/2	1	150 psi @ 72° F	44705K445	00000
2 1/2	2	150 psi @ 72° F	44705K627	00000
3	1 1/2	150 psi @ 72° F	44705K446	00000
3	2	150 psi @ 72° F	44705K291	00000
3	2 1/2	150 psi @ 72° F	44705K447	00000
4	2	150 psi @ 72° F	44705K448	000000
4	3	150 psi @ 72° F	44705K449	000000
6	3	150 psi @ 72° F	44705K628	000000
6	4	150 psi @ 72° F	44705K629	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	44705K269	000000
3/8	1/8	150 psi @ 72° F	44705K391	00000
3/8	1/4	150 psi @ 72° F	44705K271	00000
1/2	1/4	150 psi @ 72° F	44705K392	00000
1/2	3/8	150 psi @ 72° F	44705K272	00000
3/4	1/4	150 psi @ 72° F	44705K486	00000
3/4	3/8	150 psi @ 72° F	44705K652	00000
3/4	1/2	150 psi @ 72° F	44705K273	00000
1	1/2	150 psi @ 72° F	44705K487	00000
1	3/4	150 psi @ 72° F	44705K274	00000
1 1/4	1/2	150 psi @ 72° F	44705K654	00000
1 1/4	3/4	150 psi @ 72° F	44705K656	00000
1 1/4	1	150 psi @ 72° F	44705K275	00000
1 1/2	3/4	150 psi @ 72° F	44705K658	00000
1 1/2	1	150 psi @ 72° F	44705K488	00000
1 1/2	1 1/4	150 psi @ 72° F	44705K276	00000
2	1	150 psi @ 72° F	44705K661	00000
2	1 1/4	150 psi @ 72° F	44705K662	00000
2	1 1/2	150 psi @ 72° F	44705K277	00000
2 1/2	1 1/2	150 psi @ 72° F	44705K663	00000
2 1/2	2	150 psi @ 72° F	44705K665	00000
3	2	150 psi @ 72° F	44705K489	000000
3	2 1/2	150 psi @ 72° F	44705K667	000000
4	3	150 psi @ 72° F	44705K491	000000
6	4	150 psi @ 72° F	44705K669	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	44705K424	000000
1/2	3/8	150 psi @ 72° F	44705K425	00000
3/4	1/2	150 psi @ 72° F	44705K426	00000
1	1/2	150 psi @ 72° F	44705K427	00000
1	3/4	150 psi @ 72° F	44705K428	00000
1 1/4	1	150 psi @ 72° F	44705K429	00000
1 1/2	1	150 psi @ 72° F	44705K431	00000
1 1/2	1 1/4	150 psi @ 72° F	44705K432	00000
2	1 1/2	150 psi @ 72° F	44705K433	00000
3	2	150 psi @ 72° F	44705K434	000000
4	3	150 psi @ 72° F	44705K436	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	44705K196	000000
3/4	150 psi @ 72° F	44705K197	00000
1	150 psi @ 72° F	44705K198	00000
1 1/4	150 psi @ 72° F	44705K199	00000
1 1/2	150 psi @ 72° F	44705K209	00000
2	150 psi @ 72° F	44705K225	00000
2 1/2	150 psi @ 72° F	44705K226	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	44705K452	000000
1/2	3/4	150 psi @ 72° F	44705K453	00000
3/4	3/8	150 psi @ 72° F	44705K456	00000
3/4	1/2	150 psi @ 72° F	44705K457	00000
1	1/2	150 psi @ 72° F	44705K462	00000
1	1 1/2	150 psi @ 72° F	44705K463	00000
1 1/4	3/4	150 psi @ 72° F	44705K464	00000
1 1/2	1/2	150 psi @ 72° F	44705K468	00000
1 1/2	3/4	150 psi @ 72° F	44705K469	00000
1 1/2	1	150 psi @ 72° F	44705K471	00000
1 1/2	2	150 psi @ 72° F	44705K472	00000
2	3/4	150 psi @ 72° F	44705K474	000000
2	1	150 psi @ 72° F	44705K475	000000
3	2	150 psi @ 72° F	44705K476	000000
4	2	150 psi @ 72° F	44705K477	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	44705K454	000000
1/2	1	150 psi @ 72° F	44705K458	00000
3/4	1/2	150 psi @ 72° F	44705K455	00000
3/4	1	150 psi @ 72° F	44705K459	00000
1	3/4	150 psi @ 72° F	44705K461	00000
1	1 1/2	150 psi @ 72° F	44705K467	00000
1 1/2	3/4	150 psi @ 72° F	44705K466	00000
2	1 1/2	150 psi @ 72° F	44705K473	000000