13.750 Inch OD x 13.375 Inch ID G7 Glass Reinforced Silicone Tubes - .187 inch wall thickness 3/16

13.750 Inch OD x 13.375 Inch ID NEMA G-7 Tubes satisfies MIL-I-24768/17 GSG, IEC 60893-3 Type 6 SI GC 201

G7 Tubes are manufactured of Glass Cloth Reinforced Silicone.

 Composed of a continuous glass woven cloth base impregnated with a silicone resin binder, this grade has excellent heat and arc resistance. 

Silicone thermosetting resins are among the best of all polymer materials in resistance to temperature. 

Hence, silicone is broadly used for high temperature electronic applications requiring low electrical losses. 

Silicone isn't as strong as epoxies and phenolics upon aging at lower temperatures but is stronger upon aging over 400° F.

G7 has extremely good dielectric loss properties under dry conditions and good electrical properties under humid conditions, although the percentage of change is high.

Tubes are made in 36" to 48" Lengths +/- 1.0" Length

G7 Silicone Tubes are available in the following  Wall Thickness,  Select:

Tubes are manufactured in random lengths between 30" and 36".
The pricing and minimums are based on the 36".

Tubes can also be produced in 42" to 48" random lengths for the same price.
Measured lengths of 36"±1" and 48"±1" are also available - call for pricing.

G7 Tubes - .187" Wall
Part # OD (in.) ID (in.) Minimum Order (ft.) Price Per Foot Order Online
KM-12672 13.750 13.375 3 $1,068.75 Add to Order
Rev. 08-22, 04-22, 11-21, 09-21

Phenolic Tube Tolerances
↓ Inside Diameter ↓
Outside Diameter Turned OD
Tolerance
Steel
Mandrel
Built-up
Mandrel
0.125"  to  0.749" ±.005" ±.003" -
0.750"  to  1.999" ±.005" ±.004" -
2.000"  to  4.000" ±.008" ±.006" -
4.001"  -  12.000" ±.025" ** ±.010" -
12.001" - 18.000" ±.030" ** ±.030" ±.060"
18.001" - 24.000" ±.035" ** ±.040" ±.075"
24.001" - 48.000" ±.040" ** ±.060" ±.090"

** Tubes over 8.000" OD are supplied as wound, which
are always fractions of an inch larger than stated OD.

** Tubes turned to the following OD tolerance
can be quoted on request.