![Ultraflex banner](https://cdn.techflex.com/system/product-lines/tf_banner_images/000/001/511/original/en/ultraflex--banner.jpg)
![Insultherm® Ultra Flex® - 3 AWG - Natural](http://cdn.techflex.com/system/product_images/images/000/025/958/b2bxlarge/fhng.03nt.jpg?1568305189)
![Fhn 1](https://cdn.techflex.com/system/assets/images/product-lines/application-shots/display/FHN-1.jpg)
![Fhn 2](https://cdn.techflex.com/system/assets/images/product-lines/application-shots/display/FHN-2.jpg)
![Fhn 3](https://cdn.techflex.com/system/assets/images/product-lines/application-shots/display/FHN-3.jpg)
![Fhn 4](https://cdn.techflex.com/system/assets/images/product-lines/application-shots/display/FHN-4.jpg)
Protect Exposed Wires and Cables from Engine & Exhaust
Insultherm® Ultra Flex® fiberglass sleeving is ideal for the protection of wires and hoses exposed to the heat generated from high performance engine and exhaust components.The heat treated sleeving cuts with scissors and is highly flexible. Ultra Flex® expands slightly, allowing it to slide easily over wires and follow curves and contours without binding. Ultra Flex® is available in Natural.
Certifications:
![Logo rohs](https://cdn.techflex.com/assets/images/certifications/logo_rohs.jpg)
![Logo ul](https://cdn.techflex.com/assets/images/certifications/logo_ul.jpg)
![Vw 1 logo](https://cdn.techflex.com/assets/images/vw-1-logo.jpg)
![Prop65 clean](https://cdn.techflex.com/assets/images/prop65-clean.jpg)
Product Sizes
Size | Part Number | Expansion Max | Expansion Min | Wall Thickness Max | Bulk Spool | Shop Spool |
---|---|---|---|---|---|---|
1/4" | fhn0.25nt | 0.313" | 0.250" | .010" | 100' | 50' |
5/16" | fhn0.31nt | 0.333" | 0.313" | .016" | 100' | 50' |
3/8" | fhn0.38nt | 0.500" | 0.375" | .012" | 100' | 50' |
7/16" | fhn0.44nt | 0.462" | 0.438" | .018" | 100' | 50' |
1/2" | fhn0.50nt | 0.625" | 0.500" | .013" | 100' | 50' |
5/8" | fhn0.63nt | 0.750" | 0.625" | .024" | 100' | 50' |
3/4" | fhn0.75nt | 0.875" | 0.750" | .024" | 100' | 50' |
1" | fhn1.00nt | 1.250" | 1.000" | .024" | 100' | 50' |
0 | fhng.00nt | 0.347" | 0.325" | .016" | 100' | 50' |
1 | fhng.01nt | 0.311" | 0.289" | .016" | 100' | 50' |
2 | fhng.02nt | 0.278" | 0.258" | .016" | 250' | 100' |
3 | fhng.03nt | 0.249" | 0.229" | .016" | 250' | 100' |
4 | fhng.04nt | 0.224" | 0.204" | .016" | 250' | 100' |
5 | fhng.05nt | 0.198" | 0.182" | .013" | 250' | 100' |
6 | fhng.06nt | 0.178" | 0.152" | .013" | 250' | 100' |
7 | fhng.07nt | 0.158" | 0.144" | .013" | 250' | 100' |
8 | fhng.08nt | 0.141" | 0.129" | .011" | 250' | 100' |
9 | fhng.09nt | 0.124" | 0.114" | .011" | 250' | 100' |
10 | fhng.10nt | 0.112" | 0.102" | .011" | 250' | 100' |
11 | fhng.11nt | 0.101" | 0.091" | .011" | 250' | 100' |
12 | fhng.12nt | 0.091" | 0.081" | .011" | 250' | 100' |
13 | fhng.13nt | 0.082" | 0.072" | .011" | 500' | 250' |
14 | fhng.14nt | 0.074" | 0.064" | .011" | 500' | 250' |
16 | fhng.16nt | 0.061" | 0.051" | .011" | 500' | 250' |
17 | fhng.17nt | 0.054" | 0.045" | .011" | 500' | 250' |
18 | fhng.18nt | 0.049" | 0.040" | .011" | 500' | 250' |
20 | fhng.20nt | 0.039" | 0.032" | .009" | 500' | 250' |
22 | fhng.22nt | 0.032" | 0.025" | .005" | 500' | 250' |
24 | fhng.24nt | 0.027" | 0.020" | .005" | 500' | 250' |