A-A-59567/4
Coupling hose threads. Coupling hose threads shall be either National Hose (NH) or National Pipe
Straight Hose (NPSH) in accordance with FED-STD-H28/10. NH and NPSH threads are not
interchangeable.
TABLE I. Size codes for hose assemblies.
Class A
Class AA
Class B
PIN size
Hose
Garden hose
Garden hose
Water hose
code
assembly size
1/
1/
2/
04
.500
.500
---
---
05
.625
.625
---
---
06
.750
.750
.750
---
08
1.000
---
1.000
---
10
1.250
---
1.250
---
12
1.500
---
1.500
1.500
16
2.000
---
2.000
2.000
20
2.500
---
2.500
2.500
24
3.000
---
3.000
3.000
28
3.500
---
3.500
3.500
32
4.000
---
4.000
4.000
34
4.500
---
4.500
4.500
40
5.000
---
5.000
5.000
48
5.000
---
5.000
5.000
1/ See table II for class A style, threads, and clamp designators.
2/ See table III for class AA style, threads, and clamp designators.
Short shank. Short shank hose assemblies shall have one clamp for sealing of couplings to hose see
figure 1 and figure 3 for typical assembly.
Long shank. Long shank hose assemblies shall have two or more clamps for sealing of couplings to
hose, see figure 2 and figure 3 for typical assembly.
Short and long shank hose clamp . Short and long shank hose clamps shall be in accordance with
A-A-52506 for designators see table II (class A) or table III (class AA and B).
Hose clamps. Hose clamps shall be in accordance with A-A-52506 see figure 5.
Compression ferrule. Compression ferrule shall be in accordance with A-A-59614.
Expansion rings. Expansion rings shall be in accordance with A-A-59614, see figure 4.
Clamps and ferrules. Clamps or ferrules shall not extend closer than .062 inch to the end of the shank.
Gasket. Hose assemblies shall come with a gasket, see figure 3. Gasket material shall be suitable for
potable water or non-potable water as applicable.
NOTE: Hose assemblies for this CID are not intended to meet the pressure requirements of the
couplings.
3
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