MIL-DTL-13444H
TABLE I. Inside and outside diameters (type I).
Nominal
Outside diameter
Inside diameter
Nominal
size, I.D
Dash
size, I.D
minimum
maximum
minimum
maximum
decimal
inches
No.
inches
inches
inches
inches
inches
(mm)
(mm)
(mm)
(mm)
(mm)
(mm)
-2
1/8
.125 (3.18)
.109 (2.77)
.141 (3.58)
.328 (8.33)
.375 (9.53)
-3
3/16
.188 (4.78)
.172 (4.37)
.203 (5.16)
.406 (10.31)
.468 (11.89)
-4
1/4
.250 (6.35)
.234 (5.94)
.266 (6.67)
.469 (11.91)
.531 (13.49)
-5
5/16
.313 (7.95)
.296 (7.52)
.328 (8.33)
.531 (13.49)
.593 (15.06)
-6
3/8
.375 (9.53)
.359 (9.12)
.391 (9.93)
.594 (15.09)
.656 (16.66)
-8
1/2
.500 (12.70)
.469 (11.91)
.531 (13.49)
.750 (19.05)
.812 (20.620
- 10
5/8
.625 (15.88)
.593 (15.06)
.656 (16.66)
.937 (23.80)
1.000 (25.40)
- 12
3/4
.750 (19.05)
.718 (18.24)
.781 (18.84)
1.062 (26.97)
1.125 (28.58)
TABLE II. Inside and outside diameters (type III).
Nominal
Inside diameter
Outside diameter
Dash
Nominal
size, I.D
size, I.D.
decimal
minimum
maximum
minimum
maximum
No.
(inches)
inches
inches
inches
inches
inches
(mm)
(mm)
(mm)
(mm)
(mm)
-4
3/16
.188 (3.00)
.188 (3.00)
.216 (5.49)
.472 (11.99)
.510 (12.95)
-5
1/4
.250 (6.35)
.250 (6.35)
.281 (7.14)
.535 (13.59)
.573 (14.55)
-6
5/16
.313 (7.95)
.313 (7.95)
.344 (8.84)
.597 (15.16)
.635 (16.13)
-8
13/32
.406 (10.31)
.406 (10.31)
.437 (11.10)
.714 (18.14)
.760 (19.30)
- 10
1/2
.500 (12.70)
.500 (12.70)
.539 (13.69)
.808 (20.52)
.854 (21.69)
- 12
5/8
.625 (15.88)
.625 (15.88)
.667 (16.94)
.933 (23.70)
.979 (24.87)
- 16
7/8
.875 (22.23)
.875 (22.23)
.917 (23.29)
1.175 (29.85)
1.237 (31.42)
- 20
1-1/8
1.125 (28.58)
1.125 (28.58)
1.172 (29.77)
1.456 (36.98)
1.518 (38.56)
- 24
1-3/8
1.375 (34.93)
1.375 (34.93)
1.422 (36.12)
1.691 (42.95)
1.753 (44.53)
- 32
1-13/16
1.813 (46.05)
1.812 (46.02)
1.859 (47.22)
2.096 (53.24)
2.190 (55.63)
3.5.6.4 Concentricity.
3.5.6.4.1 Concentricity 1/8 inch and3/16 inch hose size. 1/8 (.125 inch) (3.18 mm) and 3/16 inch
(.188 inch) (4.78 mm) hose sizes the inside diameter and the outside diameter shall be concentric within
.030 inch (0.76 mm) total indicator reading.
3.5.6.4.2 Concentricity hose sizes greater than 3/16 inch. On hose sizes greater than 3/16 inch (.188
inch) (57.17 mm) the inside diameter and the outside diameter shall be concentric within .040 inch (1.02
mm) total indicator reading.
3.5.6.5 Bend radius. The hose shall be capable of being bent without collapse or damage to an inside
bend radius as specified in table III.
6
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