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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- | - | 0.449" (11.40mm) | 1.350" (34.29mm) | 2.370" (60.20mm) | NBCCS, Flexible | 12 | 0.449" (11.40mm) | 0.902" (22.91mm) | 2.370" (60.20mm) | 4.740" (120.40mm) | Boot, Transition - Breakout, 2:1 (T) | |
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Black | - | 0.512" (13.00mm) | 1.060" (26.92mm) | 2.039" (51.79mm) | Polyolefin (PO), Semi-Rigid | 43 | 0.272" (6.91mm) | 0.520" (13.21mm) | 1.770" (44.96mm) | - | Boot, Transition - Breakout, 4:1 | |
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Black | Adhesive Coating, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resistant | 1.850" (46.99mm) | 2.469" (62.71mm) | 0.630" (16.00mm) | Polyolefin (PO), Flexible, Irradiated | 85 | 0.690" (17.53mm) | 2.469" (62.71mm) | 0.760" (19.30mm) | 2.728" (69.29mm) | Boot | |
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Black | - | 0.490" (12.45mm) | 1.060" (26.92mm) | 1.320" (33.53mm) | Elastomer, Fluid Resistant | 24 | 0.240" (6.10mm) | 0.520" (13.21mm) | - | 2.640" (67.06mm) | Boot, Transition - Breakout, 2:1 (T) | |
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Black | - | 0.490" (12.45mm) | 1.060" (26.92mm) | 1.320" (33.53mm) | Polyolefin (PO), Semi-Rigid | 24 | 0.240" (6.10mm) | 0.520" (13.21mm) | - | 2.640" (67.06mm) | Boot, Transition - Breakout, 2:1 (T) | |
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Black | Adhesive Coating, Fluid Resistant | 0.520" (13.21mm) | 1.060" (26.92mm) | 2.118" (53.80mm) | Elastomer, Semi-Rigid | 24 | 0.260" (6.60mm) | 0.520" (13.21mm) | 1.520" (38.61mm) | 3.820" (97.03mm) | Boot, Transition - Side Breakout, 90° | |
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Black, Yellow | Drain Holes, Flame Retardant, Fluid Resistant, Fuel Resistant, Heat Resistant, Lip | 0.740" (18.80mm) | 1.161" (29.49mm) | 0.480" (12.19mm) | Fluoroelastomer (FKM), Flexible, Irradiated | 32 | 0.331" (8.41mm) | 1.161" (29.49mm) | 4.441" (112.80mm) | 5.461" (138.71mm) | Boot | |
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Black | - | 0.360" (9.14mm) | 0.560" (14.22mm) | 1.950" (49.53mm) | Elastomer, Fluid Resistant | 12 | 0.070" (1.78mm) | 0.120" (3.05mm) | - | 2.200" (55.88mm) | Boot, Transition - Breakout, 5:1 | |
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- | - | 0.720" (18.29mm) | 1.402" (35.61mm) | 0.752" (19.10mm) | Zerohal™ | - | 0.339" (8.61mm) | 0.598" (15.19mm) | 1.618" (41.10mm) | 2.500" (63.50mm) | Boot, Transition - Side Breakout, 30° | |
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- | - | 0.640" (16.26mm) | 1.160" (29.46mm) | 1.020" (25.91mm) | Polyolefin (PO), Semi-Rigid | 15 | 0.640" (16.26mm), 0.210" (5.33mm) | 1.160" (29.46mm), 0.380" (9.65mm) | 1.020" (25.91mm) | - | Boot, Transition - Side Breakout, 90° | |
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Black | - | 0.650" (16.51mm) | 1.000" (25.40mm) | 1.200" (30.48mm) | Elastomer, Fluid Resistant | 23 | 0.330" (8.38mm) | 1.000" (25.40mm) | - | 6.000" (152.40mm) | Boot | |
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Black | - | 0.260" (6.60mm) | 0.780" (19.81mm) | 1.690" (42.93mm) | EPB | 21 | 0.260" (6.60mm) | 0.520" (13.21mm) | 1.690" (42.93mm) | 3.382" (85.90mm) | Boot, Transition - Breakout, 3:1 | |
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Black | - | 0.520" (13.21mm) | 1.070" (27.18mm) | 0.480" (12.19mm) | Elastomer, Fluid Resistant | 21 | 0.300" (7.62mm) | 0.820" (20.83mm) | 2.360" (59.94mm) | 3.520" (89.41mm) | Boot | |
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Black | - | 0.260" (6.60mm) | 0.780" (19.81mm) | 1.690" (42.93mm) | Polyolefin (PO), Flexible | 21 | 0.260" (6.60mm) | 0.520" (13.21mm) | 1.690" (42.93mm) | 3.380" (85.85mm) | Boot, Transition - Breakout, 3:1 | |
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Black | Flame Retardant, Fluid Resistant, Fuel Resistant, Heat Resistant, Lip | 0.791" (20.10mm) | 1.220" (30.99mm) | 1.783" (45.29mm) | Fluoroelastomer (FKM), Flexible, Irradiated | 42 | 0.280" (7.11mm) | 0.710" (18.03mm) | 0.984" (24.99mm) | 2.170" (55.12mm) | Boot - 90° | |
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Black | Adhesive Coating, Fluid Resistant, Lip | 1.752" (44.50mm) | 2.600" (66.04mm) | 2.760" (70.10mm) | Elastomer, Semi-Rigid | 85 | 0.661" (16.79mm) | 2.600" (66.04mm) | 2.028" (51.51mm) | 5.910" (150.11mm) | Boot | |
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Black | - | 0.272" (6.91mm) | 0.520" (13.21mm) | 1.512" (38.40mm) | Polyolefin (PO), Semi-Flexible | 11 | 0.138" (3.51mm) | 0.260" (6.60mm) | 0.949" (24.10mm) | - | Boot, Transition - Breakout, 4:1 | |
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Black | - | 1.450" (36.83mm) | 2.300" (58.42mm) | 1.600" (40.64mm) | Polyolefin (PO), Flexible | 67 | 0.950" (24.13mm) | 2.300" (58.42mm) | - | 7.240" (183.90mm) | Boot | |
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Black | - | 1.720" (43.69mm) | 2.598" (65.99mm) | 3.551" (90.20mm) | Polyolefin (PO), Semi-Flexible, Halogen Free | 85 | 0.772" (19.61mm) | 2.130" (54.10mm) | 2.150" (54.61mm) | 6.350" (161.29mm) | Boot | |
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- | - | 0.260" (6.60mm) | 0.780" (19.81mm) | 1.590" (40.39mm) | Polyolefin (PO), Flexible | 11 | 0.260" (6.60mm) | 0.520" (13.21mm) | 1.590" (40.39mm) | 3.180" (80.77mm) | Boot, Transition - Breakout, 2:1 (T) | |
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Red | Flame Retardant, Fluid Resistant, Heat Resistant, Lip | 1.024" (26.00mm) | 1.346" (34.19mm) | 0.740" (18.80mm) | Polyolefin (PO), Semi-Rigid, Irradiated | 53 | 0.118" (3.00mm) | 0.378" (9.60mm) | 1.429" (36.30mm) | 3.201" (81.31mm) | Boot - 90° | |
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- | - | 0.307" (7.80mm) | 0.677" (17.20mm) | 1.000" (25.40mm) | Polyolefin (PO), Semi-Rigid | - | 0.307" (7.80mm) | 0.437" (11.10mm) | 2.500" (63.50mm) | - | Boot, Transition - Breakout, 2:1 (Y) | |
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- | - | 0.307" (7.80mm) | 0.677" (17.20mm) | 1.000" (25.40mm) | Polyolefin (PO), Flexible | - | 0.307" (7.80mm) | 0.437" (11.10mm) | 2.500" (63.50mm) | - | Boot, Transition - Breakout, 2:1 (Y) | |
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- | - | 0.790" (20.07mm) | 2.370" (60.20mm) | 3.460" (87.88mm) | Polyolefin (PO), Flexible | 13 | 0.790" (20.07mm), 0.200" (5.08mm) | 1.580" (40.13mm), 0.500" (12.70mm) | 3.460" (87.88mm) | - | Boot, Transition - Breakout, 2:1 (T) | |
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Black | - | 1.110" (28.19mm) | 1.110" (28.19mm) | - | Elastomer, Fluid Resistant | 71 | 0.200" (5.08mm) | 0.400" (10.16mm) | - | - | Boot, Rectangular - Right Angle, 90° | |
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Black | - | 0.740" (18.80mm) | 1.520" (38.61mm) | 2.420" (61.47mm) | Polyolefin (PO), Semi-Flexible, Halogen Free | 34 | 0.380" (9.65mm) | 0.760" (19.30mm) | 2.900" (73.66mm) | 5.320" (135.13mm) | Boot, Transition - Breakout, 3:1 | |
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- | - | 0.598" (15.19mm) | 1.201" (30.51mm) | 1.870" (47.50mm) | Polyolefin (PO), Semi-Rigid | - | 0.350" (8.89mm) | 0.701" (17.81mm) | 1.500" (38.10mm) | 3.201" (81.31mm) | Boot, Transition - Side Breakout, 90° | |
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Black | - | 0.710" (18.03mm) | 1.220" (30.99mm) | 1.220" (30.99mm) | Fluoroelastomer (FKM), Flexible | 42 | 0.280" (7.11mm) | 0.710" (18.03mm) | 0.590" (14.99mm) | 1.540" (39.12mm) | Boot - 90° | |
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Black | - | 0.540" (13.72mm) | 1.300" (33.02mm) | 0.980" (24.89mm) | Fluoroelastomer (FKM), Flexible | 14 | 0.290" (7.37mm) | 0.790" (20.07mm) | 0.430" (10.92mm) | 4.330" (109.98mm) | Boot, Transition - Breakout, 2:1 (T) | |
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Black | - | - | - | - | Polyolefin (PO), Semi-Flexible | 24 | - | - | - | - | Boot, Transition - Side Breakout, 45° | |
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Black | - | 0.449" (11.40mm) | 1.354" (34.39mm) | 2.480" (62.99mm) | NBCCS, Flexible | - | 0.201" (5.11mm), 0.449" (11.40mm) | 0.500" (12.70mm), 0.902" (22.91mm) | 2.480" (62.99mm) | - | Boot, Transition - Breakout, 2:1 (Y) | |
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Black | - | 1.770" (44.96mm) | - | - | Elastomer, Semi-Rigid | 45 | 0.710" (18.03mm) | 1.654" (42.01mm) | 1.268" (32.21mm) | 4.010" (101.85mm) | Feed Through | |
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Black | - | 0.791" (20.10mm) | 2.370" (60.20mm) | 3.728" (94.69mm) | Polyolefin (PO), Flexible | 3 | 0.791" (20.10mm) | 1.579" (40.11mm) | 3.728" (94.69mm) | - | Boot, Transition - Breakout, 2:1 (Y) | |
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Black | Adhesive Coating, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resistant | 1.850" (46.99mm) | 2.469" (62.71mm) | 1.311" (33.30mm) | Polyolefin (PO), Semi-Rigid, Irradiated | 85 | 0.690" (17.53mm) | 2.469" (62.71mm) | 6.618" (168.10mm) | 8.949" (227.30mm) | Boot - 90° | |
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Black | - | 0.272" (6.91mm) | 0.520" (13.21mm) | 1.512" (38.40mm) | Polyolefin (PO), Flexible | 11 | 0.138" (3.51mm) | 0.260" (6.60mm) | 0.949" (24.10mm) | - | Boot, Transition - Breakout, 4:1 | |
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Black | - | 0.270" (6.86mm) | 0.520" (13.21mm) | 1.512" (38.40mm) | Elastomer, Fluid Resistant | 11 | 0.140" (3.56mm) | 0.260" (6.60mm) | 0.950" (24.13mm) | - | Boot, Transition - Breakout, 4:1 | |
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Black | - | 1.380" (35.05mm) | 2.050" (52.07mm) | 2.080" (52.83mm) | Polyolefin (PO), Semi-Flexible, Halogen Free | 74 | 0.620" (15.75mm) | 1.540" (39.12mm) | 2.120" (53.85mm) | - | Boot - 90° | |
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Black | - | 0.520" (13.21mm) | 1.060" (26.92mm) | 2.118" (53.80mm) | Polyolefin (PO), Semi-Flexible | 24 | 0.260" (6.60mm) | 0.520" (13.21mm) | 1.520" (38.61mm) | 3.820" (97.03mm) | Boot, Transition - Side Breakout, 90° | |
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Black | - | 0.520" (13.21mm) | 1.060" (26.92mm) | 1.690" (42.93mm) | Elastomer, Fluid Resistant | 23 | 0.270" (6.86mm) | 0.750" (19.05mm) | 1.980" (50.29mm) | 3.670" (93.22mm) | Boot, Transition - Breakout, 3:1 | |
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Black | - | 0.520" (13.21mm) | 1.060" (26.92mm) | 1.690" (42.93mm) | Polyolefin (PO), Semi-Rigid | 23 | 0.270" (6.86mm) | 0.520" (13.21mm) | 1.980" (50.29mm) | 3.670" (93.22mm) | Boot, Transition - Breakout, 3:1 |
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