Description
M23053/5-106-4 Tubing, Heat-Shrinkable, Thin wall, Fluid Resistant, 1/4″ 125 °C, Yellow — BOLTON SKU 55159.
About the M23053/5-106-4 Heat Shrink Tubing
MIL-DTL-23053/5 covers flexible, crosslinked polyolefin heat-shrinkable insulation sleeving; the part number is built as class digit, size identifier and colour code. M23053/5-106-4 decodes as Class 1, size identifier 06, colour code 4. Class 1 is the flame-resistant class and is furnished in colours, with the specification requiring it to be self-extinguishing within one minute with no more than 25 % of the indicator flag burned or charred. Size 06 is the 1/4 in size, with a minimum as-supplied inside diameter of .250 in (6.35 mm) recovering to a maximum .125 in (3.18 mm), and a recovered wall thickness of .025 ± .003 in. Colour code 4 is yellow. Continuous operating range is −55 °C to +135 °C, with a maximum specific gravity of 1.35 for Class 1 material and maximum water absorption of 0.5 %.
Key specifications
| Type | Heat-shrinkable electrical insulation sleeving |
|---|---|
| Specification | MIL-DTL-23053/5 (M23053/5); polyolefin, flexible, crosslinked |
| Class | Class 1 — flame resistant |
| Nominal size | 1/4 in |
| As-supplied ID, minimum | .250 in (6.35 mm) |
| ID after unrestricted shrinkage, maximum | .125 in (3.18 mm) |
| Recovered wall thickness | .025 ± .003 in (.635 ± .076 mm) |
| Continuous operating temperature | −55 °C to +135 °C (Classes 1 and 2) |
| Colour | Yellow (colour code 4) |
| Tensile strength, minimum | 1,500 psi (10.3 MPa) |
| Ultimate elongation, minimum | 200 % |
| Dielectric strength, minimum | 500 V/mil (19.7 kV/mm) |
Typical applications
Recovering to .125 in, the 1/4 in size is the everyday harness size: it closes down over butt splices, ring and lug terminations and small conductor groups without needing an oversized start diameter. In yellow it is generally used as a coded sleeve — marking a particular circuit, warning of a live or test point, or separating one loom from another where several run side by side. Because Class 1 is self-extinguishing, this variant is the one specified for enclosed bays and equipment racks where flame behaviour is controlled.
Supplied by BOLTON Technical Equipment Supplies against request for quotation. Add this item to your RFQ basket to request pricing, lead time and documentation requirements (e.g. CoC, datasheets or test reports where applicable).
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