Tyco Electronics Corporation
300 Constitutional Drive
Menlo Park, CA 94025 USA
Specification
This Issue:
Date:
Replaces:
RT-1140
Issue 5
May 15, 2003
Issue 4
THERMOFIT? SFR TUBING
Modified Silicone Elastomer, Flame-Retarded, Heat-Shrinkable
1.
2.
2.1
SCOPE
This specification covers the requirements for a type of highly flexible, electrically insulating, extruded
tubing whose diameter will reduce to a predetermined size upon the application of heat in excess of 175°C
(347°F) .
APPLICABLE DOCUMENTS
This specification takes precedence over documents referenced herein. Unless otherwise specified, the latest
issue of referenced documents applies. The following documents form a part of this specification to the
extent specified herein.
GOVERNMENT-FURNISHED DOCUMENTS
Military
MIL-H-5606
MIL-G-5572
MIL-L-7808
MIL-T-5624
Hydraulic Fluid, Petroleum Base, Aircraft, Missile and Ordnance
Gasoline, Aviation, Grades 80/87, 100/130 and 115/145
Lubricating Oil, Aircraft Turbine Engine, Synthetic Base
Turbine Fuel, Aviation, Grades JP-4 and JP-5
2.2
OTHER PUBLICATIONS
American Society for Testing and Materials (ASTM)
D 412
D 2240
D 2671
G 21
Standard Method of Tension Testing of Vulcanized Rubber
Standard Method of Test for Indentation Hardness of Rubber and Plastics by Means of a
Durometer
Standard Methods of Testing Heat-Shrinkable Tubing
Recommended Practice for Determining Resistance of Synthetic Polymeric Materials to
Fungi
(Copies of ASTM publications may be obtained from the American Society for Testing and Materials, 1916
Race Street, Philadelphia, Pennsylvania 19103.)
3.
3.1
REQUIREMENTS
MATERIAL
The tubing shall be fabricated from a stabilized, flame-retarded, modified silicone elastomer and shall be
crosslinked. It shall be homogeneous and essentially free from flaws, defects, pinholes, bubbles, seams,
cracks, and inclusions.
If this document is printed it becomes uncontrolled. Check for the latest revision.
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