Assemblies
312
Measuring the Offset Angle
The offset angle between two fittings is the number of
degrees measured in a clockwise direction between the
fitting nearest the viewer and the farthest end fitting.
Tolerances on the offset angle are +/- 3 degrees for
assemblies up to 24 inches long and +/- 5 degrees for
assemblies 24 inches and longer.
The following illustration shows the clockwise angle
separation between a “close” fitting and a “far” fitting.
The “close” fitting would be defined as the fitting closer
when looking at an assembly end to end. The “far” fitting
would be defined as the fitting on the far end of the
assembly when looking at an assembly end to end. The
far end is used as the reference point and the “close” end
establishes the angular difference.
Far End Reference Measuring Clockwise
Far End
Close End
Clockwise Measurement (Degrees)
Hose assemblies should be manufactured to the following
length tolerances.
Assembly Length
Tolerance
(
+/- in.)
Tolerance
(
+/- in.)
Tolerance
(
+/- mm)
Up through 12 in.
(304.8
mm)
0.13
1/8
3.2
Over 12 through 18 in.
(304.8
through 457.2mm)
0.19
3/16
4.8
Over 18 through 36 in.
(457.2
through 914.4mm)
0.25
1/4
6.4
Over 36 in. (914.4mm)
1%
1%
1%
*
SAE Dash Size equals OD of the tubing, which has approximately the same ID as the
hose, expressed in 1/16”.
Part #
Hose ID
(
in.) (mm)
Hose
Dash
Size
Thread
Size
(
in.-TPI)
Thread
Dash
Size
"
C" Cut-Off
Factor (mm)
Stem
Hex
(
mm)
JIC Solid
Male 37 3/8 9.5 -6 9/16-18 -6 26.3
17
Defining Hose and Assembly Length
Knowing the overall length
of the assembly desired, you
subtract the “C” cut-off factor
for each fitting from the
overall length to obtain the
hose cut length.
Cut Hose Length = Assembly Overall Length – (C1+C2)
C1 and C2 are cut-off factors for each end. The “C”
dimension may differ for each end, depending on the
fitting. In certain situations, the sealing surface of JIC
swivels and O-ring face seals should be considered when
calculating overall length.
Hose Cut Length
Overall Assembly Length
C
1
C
2
Appendix
Installation & Maintenance
Assemblies
Equipment & Accessories
Fittings
Hoses