Description
M23053/5-107-4 Tubing, Heat-Shrinkable, Thin wall, Fluid Resistant, 3/8″ 125 °C, Yellow — BOLTON SKU 53890.
About the M23053/5-107-4 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. In M23053/5-107-4 the leading 1 is Class 1, which the specification defines as flame resistant and which is furnished in colours; size identifier 07 is the 3/8 in size, listed with a minimum as-supplied inside diameter of .375 in (9.53 mm) recovering to a maximum .187 in (4.75 mm), a nominal 2:1 reduction; and colour code 4 is yellow. Recovered wall thickness for this size is .025 ± .003 in. Classes 1 and 2 share a continuous operating temperature range of −55 °C to +135 °C, and the specification sets minimum tensile strength of 1,500 psi, minimum ultimate elongation of 200 % and minimum dielectric strength of 500 V/mil, together with fluid resistance and low-temperature flexibility requirements at −55 °C.
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 | 3/8 in |
| As-supplied ID, minimum | .375 in (9.53 mm) |
| ID after unrestricted shrinkage, maximum | .187 in (4.75 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 .187 in, the 3/8 in size covers heavier single conductors, small multi-way connector back-ends and grouped breakouts that the smaller sizes will not pass over. Yellow is a MIL-STD-104 identification colour, so this variant is commonly drawn where a circuit or a bundle has to be told apart at a glance on a densely packed loom, or where a caution or phase convention is applied at a termination. Being Class 1, it is the flame-resistant option, so it suits enclosed harness runs where the clear Class 2 sleeve would not be acceptable.
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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