NPFC - MIL-R-46846
RUBBER, SYNTHETIC, HEAT-SHRINKABLE
Organization: | NPFC |
Publication Date: | 30 April 1992 |
Status: | inactive |
Page Count: | 21 |
scope:
This specification covers the requirements for flexible, electrical insulating, extruded tubing, molded parts, and extruded shapes whose dimensions will reduce to a predetermined size upon the application of heat.
The heat-shrinkable rubber will consist of the following types and classes, as specified (see 6.2). Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Commander, U.S. Army Missile Command, ATTN: AMSMI-RD-SE-TD-ST, Redstone Arsenal, AL 35898-5270 by using the Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter.
Cross-linked, modified polychloroprene (Neoprene) tubing, molded parts, and extruded shapes, flexible general purpose cable-jacketing, cable harness, boots and transitions, service temperature range of −55 to 90 ° Celsius (C).
a. Class 1 - Tubing-cable-jacketi
b. Class 2 - Molded parts and extruded shapes, cable harness boots and transitions, expansion ratio 2.5.
Cross-linked modified flame-retardent silicone rubber tubing, molded parts and extruded shapes, highly flexible, ablative-resistant.
a. Class 1 - Tubing, expansion ratio 1.75, service temperature range of −70 to 180°C.
b. Class 2 - Molded parts and extruded shapes, expansion ratio 2 to 4, service temperature range −75 to 135°C.
Cross-linked, modified viton tubing, molded parts and extruded shapes, flexible for materials exposed to extended periods of high temperature and solvent attack.
a. Class 1 - Tubing, expansion ratio 2, service temperature range −55 to 200°C.
b. Class 2 - Molded parts and extruded shapes, expansion ratio 3.5, service temperature range of −55 to 200°C.
Cross-linked, modified, propellant-resistant
a. Class 1 - Tubing, expansion ratio 2, service temperature range of −55 to 125°C.
b. Class 2 - Molded parts and extruded shapes, expansion ratio 2.5, service temperature range of −55 to 125°C.
Cross-linked, modified, flame-resistant elastomeric polyolefin tubing, highly flexible airborne harnessing or jacketing material where low weight, high flame-resistance, and thin walls are required, low shrinking temperature expansion ratios 2 to 4, service temperature range of −55 to 135°C.
Cross-linked, modified, flame-resistant ethylene-propylene rubber tubing, molded parts, and extruded shapes, flexible, ozone resistant, mechanically tough.
a. Class 1 - Tubing, expansion ratio 2, service temperature of −70 to 115°C.
b. Class 2 - Molded parts and extruded shapes, expansion ratio 4, service temperature range of −75 to 125°C.
intended Use:
The heat-reactive synthetic rubber materials covered by this specification are intended for use in a wide range of applications requiring a tough flexible rubber that will reduce to predetermined... View More
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