TM 1-1500-204-23-2
(7)
Proof test hose assemblies in accordance with 4-5f.
(8)
Hose assemblies shall be identified as outlined in 4-5g.
i.
Assembly of Medium-Pressure Tetrafluoroethylene (Teflon) Hose Assemblies. The following
paragraphs provide instructions for identification of bulk Tetrafluoroethylene (commonly known as Teflon and will be
referenced as Teflon in this manual) hose conforming to MIL-H-27267 and end fittings conforming to MIL-F-27272 and
Drawing MS 27053 through 27089. Specific instructions are provided for inspection, removal, cleaning, disassembly,
installation and disposition of Teflon hose assemblies fabricated from bulk hose and end fittings.
(1)
Use. Medium pressure Teflon hose assemblies (1,500 psi maximum operating pressure) meeting the
dimensions and installed minimum bend radii of table 4-21 are suitable for use in fuel, lubrication, pneumatic, and
hydraulic systems Use in other systems shall meet the considerations of paragraph 6.1 of MIL-F-27267 and paragraph
6.1 of MIL-H-27272
WARNING
Hose assemblies conforming to MIL-H25579 and hose assemblies conforming to MIL-H-38360 use
different hose and fittings. DO NOT interchange components between assemblies. Improper
combinations of hose and fittings lead to life endangering failures
Table 4-21. Tetrafluoroethylene Hose MIL- F-27272 (in Inches)
Tube wall
Hose size
Hose ID
thickness
Hose OD
Bend radius
-3
0.125
0.040
0.250
2
-4
0.188
0.040
0.312
2
-5
0.250
0.040
0.375
2
-6
0.313
0.040
0.446
4
-8
0.406
0.043
0.562
4 5/8
-10
0.500
0.047
0.656
5 1/2
-12
0.625
0.047
0.789
6 1/2
-16Z1
0.875
0.047
1 109
7 3/8
-20Z1
1.125
0.050
1.359
11
-24Z1
1.375
0.070
1.672
14
1
Z indicates a double layer of wire braid reinforcement
4-55
