What are Heat Shrink Boots, Caps ?
Heat Shrink Boots, Caps are protective coverings designed to insulate and secure electrical connections. They are widely used in applications such as board-to-board and cable interconnects, as well as in production electronics assembly. Important specifications for selection include Color, which aids in identification; Material, which affects durability and heat resistance; and Large Diameter Recovered, which ensures a proper fit over connectors. Procurement teams should validate lifecycle status and consider alternate-source options to mitigate sourcing risks.
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| Part & Mfr | Color | Features | Large Diameter Recovered | Large Diameter Supplied | Large Recovered Length | Material | Shell Size | Small Diameter Recovered | Small Diameter Supplied | Small Recovered Length | Total Length Recovered | Type | |||
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- | - | 1.310" (33.27mm) | 3.930" (99.82mm) | 4.080" (103.63mm) | Polyolefin (PO), Flexible | - | 1.310" (33.27mm) | 2.160" (54.86mm) | 4.080" (103.63mm) | - | Boot, Transition - Breakout, 3:1 | |
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Black | Adhesive Coating, Fluid Resistant | 1.060" (26.92mm) | 2.189" (55.60mm) | 3.760" (95.50mm) | Elastomer, Semi-Rigid | 58 | 0.539" (13.69mm) | 1.060" (26.92mm) | 3.660" (92.96mm) | 8.012" (203.50mm) | Boot, Transition - Side Breakout, 45° | |
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Black | - | 0.488" (12.40mm) | 1.060" (26.92mm) | 1.642" (41.71mm) | Fluoroelastomer (FKM), Flexible | 23 | 0.118" (3.00mm) | 0.260" (6.60mm) | 1.071" (27.20mm) | 3.280" (83.31mm) | Boot, Transition - Breakout, 2:1 (T) | |
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- | - | 0.531" (13.49mm) | 1.118" (28.40mm) | 2.760" (70.10mm) | Polyolefin (PO), Flexible | - | 0.531" (13.49mm) | 1.059" (26.90mm) | 3.161" (80.29mm) | 5.909" (150.09mm) | Boot, Transition - Side Breakout, 45° | |
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Black | - | 0.260" (6.60mm) | 0.520" (13.21mm) | 0.819" (20.80mm) | Fluoroelastomer (FKM), Flexible | 11 | 0.142" (3.61mm) | 0.260" (6.60mm) | 1.000" (25.40mm) | 1.819" (46.20mm) | Boot, Transition - Breakout, 3:1 | |
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Black | - | 0.870" (22.10mm) | 1.000" (25.40mm) | 1.620" (41.15mm) | Polyolefin (PO), Semi-Rigid | 13 | 0.160" (4.06mm) | 0.290" (7.37mm) | 1.220" (30.99mm) | - | Boot | |
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Black | Adhesive Coating, Chemical Resistant, Lip | 1.110" (28.19mm) | 1.690" (42.93mm) | 1.610" (40.89mm) | Fluoroelastomer (FKM), Flexible | 63 | 0.390" (9.91mm) | 1.690" (42.93mm) | 0.830" (21.08mm) | 3.110" (78.99mm) | Boot | |
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Black | - | 0.870" (22.10mm) | 1.420" (36.07mm) | 1.570" (39.88mm) | - | 53 | 0.330" (8.38mm) | 1.420" (36.07mm) | 1.180" (29.97mm) | - | Boot | |
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- | - | 0.791" (20.10mm) | 2.370" (60.20mm) | 2.500" (63.50mm) | EPB, Flexible | - | 0.201" (5.11mm), 0.791" (20.09mm) | 0.500" (12.70mm), 1.579" (40.11mm) | 2.500" (63.50mm) | 6.921" (175.79mm) | Boot, Transition - Breakout, 2:1 (T) | |
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- | - | 0.791" (20.10mm) | 2.370" (60.20mm) | 2.500" (63.50mm) | Fluoroelastomer (FKM), Flexible | - | 0.791" (20.10mm) | 1.579" (40.11mm) | 2.500" (63.50mm) | - | Boot, Transition - Breakout, 2:1 (Y) | |
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Black | Flame Retardant, Fluid Resistant, Fuel Resistant, Heat Resistant, Lip | 0.740" (18.80mm) | 1.161" (29.49mm) | 0.819" (20.80mm) | Fluoroelastomer (FKM), Flexible, Irradiated | 32 | 0.331" (8.41mm) | 0.720" (18.29mm) | 2.240" (56.90mm) | 3.500" (88.90mm) | Boot - 90° | |
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Black | Drain Holes, Flame Retardant, Fluid Resistant, Fuel Resistant, Heat Resistant, Lip | 0.740" (18.80mm) | 1.161" (29.49mm) | 0.819" (20.80mm) | Fluoroelastomer (FKM), Flexible, Irradiated | 32 | 0.331" (8.41mm) | 0.720" (18.29mm) | 4.500" (114.30mm) | 5.760" (146.30mm) | Boot - 90° | |
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Black | - | 0.488" (12.40mm) | 1.060" (26.92mm) | 1.500" (38.10mm) | Fluoroelastomer (FKM), Flexible | 23 | 0.240" (6.10mm) | 0.520" (13.21mm) | 1.700" (43.18mm) | - | Boot, Transition - Breakout, 2:1 (Y) | |
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Black | Adhesive Coating, Flame Retardant | 0.650" (16.51mm) | - | 2.500" (63.50mm) | Polyolefin (PO), Flexible | 42 | 0.120" (3.05mm) | 0.380" (9.65mm) | 0.620" (15.75mm) | 3.500" (88.90mm) | Boot | |
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Black | - | 0.640" (16.26mm) | 1.000" (25.40mm) | - | Polyolefin (PO), Semi-Rigid | 12 | 0.250" (6.35mm) | 0.760" (19.30mm) | 0.250" (6.35mm) | 2.540" (64.52mm) | Boot | |
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Black | - | 1.000" (25.40mm) | 2.190" (55.63mm) | 3.500" (88.90mm) | Polyolefin (PO), Semi-Rigid | 46 | 0.490" (12.45mm) | 1.300" (33.02mm) | 4.060" (103.12mm) | 7.560" (192.02mm) | Boot, Transition - Breakout, 3:1 | |
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Black | - | 0.490" (12.45mm) | 1.620" (41.15mm) | 3.620" (91.95mm) | Elastomer, Fluid Resistant | 17 | 0.490" (12.45mm) | 1.060" (26.92mm) | 3.580" (90.93mm), 36.960" (938.78mm) | - | Boot | |
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Black | - | 1.051" (26.70mm) | 2.189" (55.60mm) | 4.272" (108.51mm) | Polyolefin (PO), Flexible | 67 | 0.512" (13.00mm) | 1.060" (26.92mm) | 3.642" (92.51mm) | - | Boot, Transition - Breakout, 4:1 | |
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Black | Abrasion Resistant, Adhesive Coating, Corrosion Resistant, Flame Retardant, Weather Resistant | 2.323" (59.00mm) | 4.900" (124.46mm) | 7.500" (190.50mm) | Polyolefin (PO), Semi-Rigid | - | 1.000" (25.40mm) | 2.008" (51.00mm) | 2.200" (55.88mm) | - | Boot, Transition - Breakout, 3:1 | |
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Black | - | 0.382" (9.70mm) | 0.760" (19.30mm) | 1.421" (36.09mm) | Fluoroelastomer (FKM), Flexible | 32 | 0.272" (6.91mm) | 0.520" (13.21mm) | 1.770" (44.96mm) | - | Boot, Transition - Breakout, 4:1 | |
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Black | - | 0.488" (12.40mm) | 1.060" (26.92mm) | 1.661" (42.19mm) | Fluoroelastomer (FKM), Flexible | 24 | 0.240" (6.10mm) | 0.520" (13.21mm) | 1.681" (42.70mm) | 3.539" (89.89mm) | Boot, Transition - Side Breakout, 45° | |
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Black | Flame Retardant, Lip | 0.520" (13.21mm) | 1.071" (27.20mm) | 0.480" (12.19mm) | Fluoropolymer | 21 | 0.331" (8.41mm) | 1.071" (27.20mm) | 3.441" (87.40mm) | 4.772" (121.21mm) | Boot | |
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Black | - | 0.700" (17.78mm) | 0.940" (23.88mm) | 0.270" (6.86mm) | Fluoroelastomer (FKM), Flexible | 22 | 0.220" (5.59mm) | 0.470" (11.94mm) | - | - | Boot | |
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Black | Abrasion Resistant, Adhesive Coating, Corrosion Resistant, Flame Retardant, Weather Resistant | 1.000" (25.40mm) | 2.350" (59.69mm) | 2.800" (71.12mm) | Polyolefin (PO), Semi-Rigid | - | 0.350" (8.89mm) | 1.000" (25.40mm) | 1.700" (43.18mm) | - | Boot, Transition - Breakout, 4:1 | |
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Black | - | 1.000" (25.40mm) | 2.190" (55.63mm) | 4.382" (111.30mm) | Elastomer, Semi-Rigid | 58 | 0.490" (12.45mm) | 1.060" (26.92mm) | 3.059" (77.70mm) | 8.750" (222.25mm) | Boot, Transition - Side Breakout, 90° | |
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Black | - | 0.791" (20.10mm) | 2.370" (60.20mm) | 3.461" (87.91mm) | VPB, Flexible | 13 | 0.791" (20.10mm) | 1.579" (40.11mm) | 3.461" (87.91mm) | 6.921" (175.79mm) | Boot, Transition - Breakout, 2:1 (T) | |
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Black | - | 0.490" (12.45mm) | 1.620" (41.15mm) | 3.620" (91.95mm) | Polyolefin (PO), Semi-Rigid | 17 | 0.490" (12.45mm) | 1.060" (26.92mm) | 3.580" (90.93mm), 36.960" (938.78mm) | - | Boot | |
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Black | - | 1.110" (28.19mm) | 1.500" (38.10mm) | 1.730" (43.94mm) | Fluoroelastomer (FKM), Flexible | 63 | 0.390" (9.91mm) | 1.500" (38.10mm) | 0.690" (17.53mm) | 2.110" (53.59mm) | Boot - 90° | |
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Black | - | 0.880" (22.35mm) | 1.420" (36.07mm) | 1.220" (30.99mm) | Polyolefin (PO) | 52 | 0.330" (8.38mm) | 0.870" (22.10mm) | 0.350" (8.89mm) | 3.350" (85.09mm) | Boot | |
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Black | - | 0.450" (11.43mm) | 1.350" (34.29mm) | 2.670" (67.82mm) | Elastomer, Fluid Resistant | 22 | 0.450" (11.43mm) | 0.810" (20.57mm) | 2.670" (67.82mm) | 5.340" (135.64mm) | Boot, Transition - Breakout, 3:1 | |
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Black | - | 0.800" (20.32mm) | 1.350" (34.29mm) | 2.500" (63.50mm) | Polyolefin (PO), Semi-Rigid | 23 | 0.190" (4.83mm) | 0.480" (12.19mm) | - | 3.500" (88.90mm) | Boot | |
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Black | Adhesive Coating | 1.307" (33.20mm) | 3.280" (83.31mm) | 5.272" (133.91mm) | Polyolefin (PO), Flexible | 4 | 1.307" (33.20mm) | 2.157" (54.79mm) | 5.272" (133.91mm) | - | Boot, Transition - Breakout, 2:1 (Y) | |
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Black | - | 1.730" (43.94mm) | 3.300" (83.82mm) | 3.500" (88.90mm) | Polyolefin (PO), Flexible | 45 | 0.500" (12.70mm) | 1.420" (36.07mm) | - | 5.000" (127.00mm) | Boot, Transition - Breakout, 4:1 | |
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Black | - | 0.790" (20.07mm) | 2.370" (60.20mm) | 2.670" (67.82mm) | Polyolefin (PO), Flexible | 23 | 0.790" (20.07mm) | 1.420" (36.07mm) | 2.670" (67.82mm) | - | Boot, Transition - Breakout, 3:1 | |
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Black | Flame Retardant, Fluid Resistant, Fuel Resistant, Heat Resistant, Lip | 1.343" (34.11mm) | 1.717" (43.61mm) | 1.031" (26.19mm) | Fluoroelastomer (FKM), Flexible, Irradiated | 63 | 0.142" (3.61mm) | 0.307" (7.80mm) | 2.272" (57.71mm) | 3.921" (99.59mm) | Boot | |
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Black | - | 0.600" (15.24mm) | 1.200" (30.48mm) | - | Elastomer, Fluid Resistant | 23 | 0.170" (4.32mm) | 0.500" (12.70mm) | 1.110" (28.19mm) | 2.110" (53.59mm) | Boot, Transition - Breakout, 2:1 | |
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Black | Abrasion Resistant, Adhesive Coating, Corrosion Resistant, Flame Retardant, Weather Resistant | 0.750" (19.05mm) | 1.496" (38.00mm) | 2.650" (67.31mm) | Polyolefin (PO), Flexible | - | 0.130" (3.30mm) | 0.410" (10.41mm) | 1.417" (35.99mm) | - | Boot, Transition - Breakout, 8:1 | |
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Black | - | 2.030" (51.56mm) | 2.030" (51.56mm) | 6.210" (157.73mm) | EPB, Flexible | 74 | 0.590" (14.99mm) | 1.790" (45.47mm) | 0.600" (15.24mm) | 8.000" (203.20mm) | Boot | |
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Black | - | 1.311" (33.30mm) | 3.280" (83.31mm) | 4.772" (121.21mm) | Polyolefin (PO), Flexible | 14 | 1.311" (33.30mm) | 2.161" (54.89mm) | 4.772" (121.21mm) | 9.539" (242.29mm) | Boot, Transition - Breakout, 2:1 (T) | |
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Black | - | 0.600" (15.24mm) | 1.260" (32.00mm) | 2.400" (60.96mm) | Polyolefin (PO), Semi-Rigid | 23 | 0.170" (4.32mm) | 0.750" (19.05mm) | 0.800" (20.32mm) | - | Boot, Transition - Breakout, 2:1 (Y) | |
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Black | - | 1.110" (28.19mm) | 1.680" (42.67mm) | - | Fluoroelastomer (FKM), Flexible | - | 0.390" (9.91mm) | 1.449" (36.80mm) | 0.969" (24.60mm) | 2.480" (62.99mm) | Boot | |
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Black | Flame Retardant, Fluid Resistant, Fuel Resistant, Heat Resistant, Lip | 1.622" (41.20mm) | 1.970" (50.04mm) | 0.819" (20.80mm) | Fluoroelastomer (FKM), Flexible, Irradiated | 74 | 0.559" (14.20mm) | 1.240" (31.50mm) | 6.209" (157.71mm) | 8.000" (203.20mm) | Boot | |
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Black | - | 0.800" (20.32mm) | 1.350" (34.29mm) | 2.500" (63.50mm) | Elastomer, Fluid Resistant | 23 | 0.190" (4.83mm) | 0.480" (12.19mm) | - | 3.500" (88.90mm) | Boot, Transition - Breakout, 4:1 | |
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Black | - | 0.880" (22.35mm) | 1.260" (32.00mm) | 1.380" (35.05mm) | Fluoroelastomer (FKM), Flexible | 52 | 0.330" (8.38mm) | 1.260" (32.00mm) | 0.570" (14.48mm) | 1.720" (43.69mm) | Boot - 90° |
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