MIL-DTL-52525/4D
Hose
Tube
Thread
Part or Identifying
C max
size
Number (PIN)
Inches (mm)
Dash
ID ref
Dash
(see note 3)
OD
no.
inches (mm)
no.
M52525/4-4-4
-4
.250 (6.35)
-4
.250 (6.35)
.438-20-UNF
3.00 (76.20)
M52525/4-4-5
-4
.250 (6.35)
-5
.313 (7.95)
.500-20-UNF
2.80 (71.12)
M52525/4-6-6
-6
.375 (9.53)
-6
.375 (9.53)
.563-18-UNF
3.32 (84.33)
M52525/4-6-8
-6
.375 (9.53)
-8
.500 (12.70)
.750-16-UNF
3.65 (92.71)
M52525/4-8-8
-8
.500 (12.70)
-8
.500 (12.70)
.750-16-UNF
3.65 (92.71)
M52525/4-8-10
-8
.500 (12.70)
-10
.625 (15.88)
.875-14-UNF
3.87 (98.30)
M52525/4-12-12
-12
.750 (19.05)
-12
.750 (19.05)
1.063-12-UNC
4.76 (120.90)
M52525/4-16-16
-16
1.000 (25.40)
-16
1.000 (25.40)
1.313-12-UNC
5.50 (139.70)
N
H
Inches (mm)
L max
M min
F max
PIN
Hex
+.030 (0.76)
Inches (mm)
Inches (mm)
Inches (mm)
size
-.015 (0.38)
M52525/4-4-4
1.86 (47.24)
.563 (14.30)
.89 (22.61)
.300 (7.62)
.344 (8.74)
M52525/4-4-5
1.86 (47.24)
.625 (15.88)
1.00 (25.40)
.331 (8.41)
.375 (9.53)
M52525/4-6-6
2.24 (56.90)
.688 (17.48)
1.19 (30.23)
.333 (8.46)
.375 (9.53)
M52525/4-6-8
2.24 (56.90)
.874 (22.20)
1.19 (30.23)
.375 (9.53)
.422 (10.72)
M52525/4-8-8
2.49 (63.25)
.874 (22.20)
1.24 (31.50)
.375 (9.53)
.422 (10.72)
M52525/4-8-10
2.63 (66.80)
1.000 (25.40)
1.24 (31.50)
.461 (11.71)
.500 (12.70)
M52525/4-12-12
3.79 (96.27)
1.250 (31.75)
1.75 (44.45)
.469 (11.91)
.562 (14.27)
M52525/4-16-16
4.39 (111.51)
1.500 (38.10)
2.05 (52.07)
.563 (14.30)
.594 (15.09)
P
Q min
(see note 4)
PIN
Bore dia.
Inches (mm)
Inches (mm)
±.005 (0.13)
M52525/4-4-4
.295 (7.49)
.11 (2.79)
M52525/4-4-5
.355 (9.02)
.11 (2.79)
M52525/4-6-6
.435 (11.05)
.26 (6.60)
M52525/4-6-8
.570 (14.48)
.38 (9.65)
M52525/4-8-8
.570 (14.48)
.38 (9.65)
M52525/4-8-10
.680 (17.27)
.38 (9.65)
M52525/4-12-12
.850 (21.59)
.57 (14.48)
M52525/4-16-16
1.000 (25.40)
.78 (19.81)
NOTES:
1. Dimensions are in inches.
2. Metric equivalents are given for information only.
3. Threads shall be in accordance with ASME B1.1 series with graded pitches fine (UNF) and series
with constant pitches (UNC), class 2B.
4. Dimension P to be concentric with dimension Q within .015 inches (0.38 mm) full indicator movement.
5. All dimensions not shown shall be in accordance with SAE-J516.
6. These fittings are similar to SAE-J516 type for use with SAE-J517, type 100R2 hose.
FIGURE 1. Fitting, screw-on to 37° flare, 90° bent tube, long drop - Continued.
2
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