NST Tubing
Modified Chlorinated Polyolefin (Neoprene
®
)
Data Sheet
Product Description
3M
™
NST Tubing provides superior cut-
through and abrasion resistance and is
unaffected by common fluids and
solvents. Resistance to oils is excellent.
The tubing maintains flexibility at low
temperatures and can be readily marked
by hot-stamp and print-wheel methods.
When heated in excess of 135°C (275°F)
NST Tubing rapidly shrinks to a skintight
fit. NSTis rated for continuous operation
from –70°C (–94°F) to 121°C (250°F).
Typical Applications
NST Tubing is recommended for
applications requiring a tough, highly
flexible covering. It is particularly useful
for fabrication and repair of flexible
harnesses and wire bundles and for
covering hydraulic couplings. Its superior
mechanical properties and broad
operating temperature range make it an
ideal choice for jacketing cable harnesses
and custom-made cables that must
operate in severe environmental
conditions.
Standard Color
Black.
Standard Packaging
Spools.
Ordering Information
Order NSTTubing by product name, size
equivalent to the expanded inside
diameter, package type and color. Always
order the largest size that will shink
snugly over the component to be
covered. When ordering NST Tubing,
please indicate the applicable
specification required.
Example: NST, 3/16" spools, black.
,
Shrink Ratio
NST Tubing has a 2:1 shrink ratio. When
freely recovered, the tubing will shrink to
50% of its as-supplied internal diameter.
The recovered wall thickness is
proportional to the degree of recovery.
Typical Properties
Standard Sizes and Dimensions
Recovered
Wall
Thickness
(Nominal)
in.
(mm)
.030
.035
.035
.040
.048
.052
.057
.065
.070
.087
.095
.107
.110
.125
(0,76)
(0,89)
(0,89)
(1,02)
(1,22)
(1,32)
(1,45)
(1,65)
(1,78)
(2,21)
(2,41)
(2,72)
(2,79)
(3.18)
Ordering
Size
1/8
3/16
1/4
3/8
1/2
5/8
3/4
7/8
1
1-1/4
1-1/2
1-3/4
2
3
Expanded I.D.
(Minimum)
in.
(mm)
.125
.187
.250
.375
.500
.625
.750
.875
1.000
1.250
1.500
1.750
2.000
3.000
(3,18)
(4,75)
(6,35)
(9,53)
(12,70)
(15,88)
(19,05)
(22,23)
(25,40)
(31,75)
(38,10)
(44,45)
(50,80)
(75,20)
Recovered I.D.
(Maximum)
in.
(mm)
.072
.106
.125
.187
.250
.312
.375
.437
.500
.625
.750
.875
1.000
1.500
(1,83)
(2,69)
(3,18)
(4,75)
(6,35)
(7,92)
(6,99)
(11,10)
(12,70)
(15,54)
(19,05)
(22,23)
(25,40)
(38,10)
Applicable Specification
MIL-R-46846, Type I, Class 1; MIL-DTL-23053/1,
Class 1, 2; AMS-3623
(SC-X-15112 available on request)
Physical
Tensile Strength
2100 PSI
Ultimate Elongation
500%
Longitudinal Change +1, -10%
Specific Gravity
1.3
Operating T mperature –70°C to
e
Range
+121°C
Shrink Temperature
135°C
(Min.)
(275°F)
Low Temperature Flexibility
(4 hrs. @ –70°C) No cracking
Flammability
Self-extinguish
Electrical
Dielectric Strength
800 V/mil
Volume Resistivity 10
12
ohm-cm
Chemical
Non-
corrosive
Fuel & Oil Resistance Excellent
Solvent Resistance
Good
Abrasion Resistance Excellent
Acids & Alkalis
Resistance
Excellent
Corrosion Resistance
Technical information provided consists of typical product data and
should not be used for specification purposes. Unless otherwise
noted, all tests are performed at room temperature.
Neoprene
®
is a trademark of E.I. du Pont de Nemours & Co., Inc.
Limited Warranty
– 3M expressly warrants that for a period of ninety days from the date of purchase, 3M static control products will be free of defects in
materials (parts) and workmanship (labor). Defects occurring during the warranty period will be repaired or products will be replaced at 3M’s option and
expense, if 3M receives notice during the warranty period. Defective products must be returned to 3M with proof of purchase date.
Warranty Exclusions
– THE FOREGOING EXPRESS WARRANTYIS MADE IN LIEU OF ALLOTHER PRODUCT WARRANTIES, EXPRESS AND IMPLIED,
INCLUDING FITNESS AND MERCHANTIBILITY. The express warranty will not apply to defects or damage due to accidents, neglect, misuse, alterations,
operator error, or failure to properly maintain, clean, or repair products.
Limit of Liability
– In no event will 3M or Seller be responsible or liable for special, incidental, or consequential losses or damages, whether based in tort or
contract. Fulfillment of 3M’s warranty obligations will be Customer’s exclusive remedy and 3M’s and Seller’s limit of liability for any breach of warranty or otherwise.
For your nearest distributor or to order, call 1-800-328-1368
3M Electrical Specialties Division
6801 River Place Blvd.
Austin, TX 78726-9000
© 3M March 1997
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