Description
FP301-3/8-48″-YELLOW — BOLTON SKU 61220.
About the FP301-3 8-48″-YELLOW
This item is 3M FP-301 heat shrink tubing in the 3/8 in nominal size, yellow, supplied in 48 in (4 ft) lengths. FP-301 is a thin-wall, flexible polyolefin tubing with a 2:1 shrink ratio, so the 3/8 in expanded diameter recovers to approximately half that on full shrink. It recovers from 100 °C minimum, operates continuously from -55 °C to +135 °C, and provides flame-retardant insulation for 600 V-rated applications. The material is mechanically tough, resists cold flow and accepts marking. FP-301 carries UL Listing E-39100 and CSA certification and is qualified to SAE AS23053/5, with coloured grades falling under Class 1 of that specification. Coloured tubing supports circuit identification and phase or function colour-coding in harness work.
Key specifications
| Manufacturer | 3M |
|---|---|
| Product | FP-301 thin-wall polyolefin heat shrink |
| Nominal size | 3/8 in expanded ID |
| Shrink ratio | 2:1 |
| Colour | Yellow |
| Supplied length | 48 in sticks |
| Shrink temperature | 100 °C minimum |
| Operating range | -55 °C to +135 °C, 600 V rated |
| Approvals | UL E-39100, CSA, SAE AS23053/5 Class 1 (colours) |
Typical applications
Yellow 3/8 in FP-301 insulates and colour-codes larger conductors, cable breakouts and terminal barrels where a visual warning or circuit-identity colour is wanted — for example marking specific supply or signal groups in panels and vehicle or ground-equipment harnesses. The 48 in stick format suits maintenance shops shrinking discrete repair lengths.
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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