MIL-DTL-3992F
TABLE VII. Bend test dimensions. 1/ 2/
Maximum collapse of
Length of specimen
OD (% of OD)
Inside diameter of hose
Heavy
Light
Heavy
Light
wall
wall
wall
wall
Inches
Inches metric
inches
mm
inches
mm
---
40%
fraction decimal (mm)
7/32
.219
5.56
---
---
7
180
20%
---
1/4
.250
6.35
8
205
---
---
---
30%
11/32
.344
8.73
---
---
11
280
20%
---
3/8
.375
9.53
12
305
---
---
20%
30%
15/32
.469
11.91
---
---
14
355
20%
---
1/2
.500
12.70
16
405
---
---
20%
---
5/8
.625
15.88
22
560
---
---
20%
---
3/4
.750
19.03
28
710
---
---
20%
---
1
1.00
25.40
36
915
---
---
20%
---
1/ Dimensions are in inches.
2/ Metric equivalents are given for information only.
3.8 Marking. Marking shall be in accordance with MIL-STD-130.
3.8.1 Hose cover. The hose cover material shall have the following information legibly marked on the
lay line of the hose at intervals of not more than 15 inches (381 mm):
a. PIN (see 1.2).
b. Date of manufacture (quarter (1 thru 4) and year (05) two numbers.
c. Manufacturer's CAGE
3.8.2 Hose assemblies. Each hose assembly shall be identified by means of a band around the hose.
The band may move freely along the length of the assembly. The band shall be permanently embossed,
etched or stamped with the following information:
a. PIN (see 1.2)
b. Date of assembly (quarter (1 thru 4) and year (05) two numbers)
c. Manufacturer's CAGE
3.9 Workmanship. Workmanship to produce hose or hose assemblies shall be in accordance with the
best current manufacturing practice as to be uniform in quality and shall be free from burrs, crazing,
cracks, voids, pimples, chips, blisters, pinholes, sharp cutting edges, and other defects that will adversely
affect life, serviceability, or appearance.
11
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