NT-MIL
Flexible, rugged, modified elastomeric
heat-shrinkable tubing
NT-MIL modified elastomeric heat-
shrinkable tubing offers outstanding
resistance to abrasion and physical
abuse while providing flexibility and
strain relief needed in many harness-
ing applications. NT-MIL tubing is
widely used for insulation, strain relief
and abrasion protection on cable
harnesses and wire bundles in the
military and aerospace industries. It
meets the stringent requirements of
AMS-DTL-23053/1, Classes 1 and 2.
Temperature rating
Full recovery temperature:
Continuous operating temperature:
135°C
–70°C to 121°C
NT-MIL tubing remains flexible at
temperatures as low as -70°C without
cracking. It also withstands heat
shock at 200°C without dripping,
flowing or cracking.
NT-MIL tubing is resistant to common
fluids and solvents including aviation
and ground vehicle fuels, lubricating
oil, and hydraulic fluids. It retains
excellent physical and electrical
properties following exposure.
No special skills are required to install
NT-MIL tubing. Using standard
heating tools, one operator can
complete an installation in minutes,
substantially reducing labor costs.
NT-MIL tubing is supplied in a wide
range of sizes. Because NT-MIL is
heat-shrinkable, each size can
accommodate a variety of harness
sizes, minimizing inventory and
related costs.
Specifications*
Type
NT-MIL
Raychem
RW-3030
Military
AMS-DTL-23053/1, Cl. 1 and 2
*When ordering, always specify latest issue.
Dimensions (millimeters/inches)
W
Expanded as supplied
D
Fully recovered after heating
d
Inside diameter
D (min.)
d (max.)
Expanded
Recovered
Size
1/8
3/16
1/4
3/8
1/2
5/8
3/4
7/8
as supplied
3.2
0.125
4.8
0.187
6.4
9.5
12.7
15.9
19.1
22.2
0.250
0.375
0.500
0.625
0.750
0.875
after heating
1.6
0.062
2.4
0.093
3.6
5.4
7.3
9.1
10.9
12.7
0.143
0.211
0.286
0.357
0.428
0.500
Wall thickness
W
Recovered
after heating**
0.66 ± 0.20
0.026 ± 0.008
0.84 ± 0.25
0.033 ± 0.010
0.89 ± 0.25
0.035 ± 0.010
1.01 ± 0.25
0.040 ± 0.010
1.21 ± 0.38
0.048 ± 0.015
1.32 ± 0.38
0.052 ± 0.015
1.44 ± 0.38
0.057 ± 0.015
1.65 ± 0.38
0.065 ± 0.015
Size
1
1 1/4
1 1/2
1 3/4
2
3
4
Inside diameter
D (min.)
d (max.)
Expanded
Recovered
as supplied
25.4
1.000
31.8
1.250
38.1
1.500
44.5
1.750
50.8
2.000
76.2
3.000
101.6
4.000
after heating
14.5
0.570
18.1
0.714
21.8
25.4
29.0
43.4
57.9
0.857
1.000
1.140
1.710
2.280
Wall thickness
W
Recovered
after heating**
1.77 ± 0.51
0.070 ± 0.020
2.20 ± 0.51
0.087 ± 0.020
2.41 ± 0.51
0.095 ± 0.020
2.71 ± 0.51
0.107 ± 0.020
2.79 ± 0.51
0.110 ± 0.020
3.17 ± 0.51
0.125 ± 0.020
3.55 ± 0.51
0.140 ± 0.020
**Wall thickness will be less if tubing recovery is restricted during shrinkage.
Ordering information
Colors
Size selection
Standard packaging
Ordering description
Black
Always order the largest size that will shrink snugly over the component being covered.
On spools
Specify product name, size, and color; for example, NT-MIL 1/4-0 (0=Black).
Specification values
Property
Dimensions
Longitudinal change
Tensile strength
Ultimate elongation
Tensile stress at 200% elongation
Restricted shrinkage
(30 minutes at 135°C/275°F)
Followed by test for:
Voltage withstand
Low temperature flexibility
(4 hours at -70°C/-94°F)
Heat shock
(4 hours at 200°C/392°F)
Heat resistance
(168 hours at 121°C/250°F)
Followed by tests for:
Tensile strength
Ultimate elongation
Dielectric strength
Unit
mm
(inches)
percent
psi
(Mpa)
percent
psi
(Mpa)
Requirement
See Reverse
+1, -10
1500
(10.3)
minimum
225 minimum
1500
(10.3)
maximum
No cracks
Method of test
ASTM D 2671
ASTM D 2671
ASTM D 412
ASTM D 412
AMS-DTL-23053
AMS-DTL-23053
Material
Pass
No cracks
No cracks, flowing or
dripping
AMS-DTL-23053
AMS-DTL-23053
ASTM D 2671
psi
(Mpa)
percent
volts/mil
(kv/mm)
Electrical
Dielectric strength
volts/mil
(kv/mm)
Chemical
Volume resistivity
Copper mirror corrosion
(16 hours at 150°C/302°F)
Copper contact corrosion
(16 hours at 150°C/302°F)
Flammability
ohm-cm
`
psi
(Mpa)
percent
volts/mil
(kV/mm)
1000
(6.9)
minimum
175 minimum
250
(9.8)
minimum
ASTM D 412
ASTM D 412
ASTM D 2671
Note: Consult RW-3030 for specific details about test procedures.
Raychem is a trademark of Tyco Electronics Corporation.
Tyco Electronics Corporation
300 Constitution Drive
Menlo Park, CA 94025-1164
USA
Tel: (800) 926-2425 (US & Canada)
Tel: +1 (650) 361-3860 (All other countries)
Faraday Road
Dorcan, Swindon, SN3 5HH
United Kingdom
Tel: +44 1793 528171
3816 Noborito, Tama-ku
Kawasaki, Kanagawa 214-8533
Japan
Tel: +81 44 900 5102
Asia Pacific Headquarters
26 Ang Mo Kio, Industrial Park 2
Singapore 569507
Tel: +65 4866 151
All information, including illustrations, is believed to be reliable. Users, however, should independently evaluate the suitability of each product for their application. Tyco Electronics Corporation makes
no warranties as to the accuracy or completeness of the information, and disclaims any liability regarding its use. Tyco Electronics Corporation’s only obligations are those in the Standard Terms and
Conditions of Sale for these products and in no case will Tyco Electronics Corporation be liable for any incidental, indirect, or consequential damages arising from the sale, resale, use, or misuse of the
product. Tyco Electronics Corporation’s Specifications are subject to change without notice. In addition, Tyco Electronics Corporation reserves the right to make changes in materials or processing
without notification to the Buyer which do not affect compliance with any applicable specification.
For more information about this product visit www.tycoelectronics.com
© 2002 Tyco Electronics Corporation Printed in USA 1654103-FP-Revised 04/04
Fungus resistance
Water absorption
(24 hours at 23°C/73°F)
Fluid resistance
(24 hours at 23°C/73°F) in:
JP-8 fuel (MIL-T-83133)
Hydraulic fluid (MIL-H-5606)
Lubricating oil (MIL-L-7808)
Lubricating oil (MIL-L 23699)
Salt water (5% salt)
Anti-icing fluid (MIL-A-8243)
Followed by tests for:
Tensile strength
Ultimate elongation
Dielectric strength
percent
1200
(8.3)
minimum
175 minimum
Sizes up to 7/8:
300
(11.8)
minimum
Sizes 1 and larger:
200
(7.8)
minimum
Sizes up to 7/8:
300
(11.8)
minimum
Sizes 1 and larger:
200
(7.8)
minimum
1 x 10
11
minimum
No pitting or
corrosion
No pitting or blackening
of copper
Self-extinguishing in
15 seconds; 3 inches
maximum burn length
No growth
1.0 maximum
ASTM D 412
ASTM D 412
ASTM D 2671
ASTM D 2671
ASTM D 876
AMS-DTL-23053
AMS-DTL-23053
ASTM D 2671
Procedure A
ASTM G 21
ASTM D 570
AMS-DTL-23053
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