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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Black | Flame Retardant, Fluid Resistant, Fuel Resistant, Heat Resistant, Lip | 0.591" (15.00mm) | 1.012" (25.70mm) | 0.591" (15.01mm) | Fluoroelastomer (FKM), Flexible, Irradiated | 21 | 0.291" (7.39mm) | 1.012" (25.70mm) | 3.882" (98.60mm) | 4.772" (121.21mm) | Boot | |
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Black | Flame Retardant, Fluid Resistant, Fuel Resistant, Heat Resistant, Lip | 0.591" (15.00mm) | 1.012" (25.70mm) | 0.480" (12.19mm) | Fluoroelastomer (FKM), Flexible, Irradiated | 21 | 0.291" (7.39mm) | 0.630" (16.00mm) | 2.358" (59.89mm) | 3.248" (82.50mm) | Boot | |
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Black | Flame Retardant, Fluid Resistant, Fuel Resistant, Heat Resistant, Lip | 0.591" (15.00mm) | 1.012" (25.70mm) | 0.480" (12.19mm) | Fluoroelastomer (FKM), Flexible, Irradiated | 21 | 0.291" (7.39mm) | 0.630" (16.00mm) | 2.358" (59.89mm) | 3.248" (82.50mm) | Boot | |
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Black | Chemical Resistant, Lip | 0.710" (18.03mm) | 1.220" (30.99mm) | 0.591" (15.01mm) | Fluoroelastomer (FKM), Flexible | 42 | 0.280" (7.11mm) | 1.220" (30.99mm) | 0.670" (17.02mm) | 1.850" (46.99mm) | Boot | |
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Black | - | 1.020" (25.91mm) | 2.189" (55.60mm) | 3.350" (85.09mm) | Polyolefin (PO), Semi-Rigid | 46 | 0.500" (12.70mm) | 1.060" (26.92mm) | 3.701" (94.01mm) | - | Boot, Transition - Breakout, 2:1 (Y) | |
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Black | - | 0.900" (22.86mm) | 1.700" (43.18mm) | 1.500" (38.10mm) | Polyolefin (PO), Semi-Flexible, Halogen Free | 44 | 0.560" (14.22mm) | 1.700" (43.18mm) | - | 6.900" (175.26mm) | Boot | |
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Black | - | 0.900" (22.86mm) | 1.700" (43.18mm) | 1.500" (38.10mm) | Polyolefin (PO), Semi-Flexible, Halogen Free | 44 | 0.560" (14.22mm) | 1.700" (43.18mm) | - | 6.900" (175.26mm) | Boot | |
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Black | - | 1.100" (27.94mm) | 1.690" (42.93mm) | 0.450" (11.43mm) | Fluoroelastomer (FKM), Flexible | 63 | 0.390" (9.91mm) | 0.980" (24.89mm) | 0.350" (8.89mm) | - | Boot - 45° | |
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Black | Flame Retardant, Fluid Resistant, Fuel Resistant, Heat Resistant, Lip | 1.024" (26.00mm) | 1.346" (34.19mm) | 0.823" (20.90mm) | Fluoroelastomer (FKM), Flexible, Irradiated | 53 | 0.122" (3.10mm) | 0.260" (6.60mm) | 2.012" (51.10mm) | 3.319" (84.30mm) | Boot | |
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Black | - | - | - | - | Elastomer, Semi-Rigid | 48 | - | - | - | - | Boot, Transition - Side Breakout, 45° | |
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- | - | - | - | - | - | - | - | - | - | - | - | |
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- | - | - | - | - | Elastomer, Fluid Resistant | 52 | - | - | - | - | - | |
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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) | 0.790" (20.07mm) | 1.540" (39.12mm) | Boot - 90° | |
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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 | Flame Retardant, Fluid Resistant, Fuel Resistant, Heat Resistant, Lip | - | - | - | Fluoroelastomer (FKM), Flexible, Irradiated | 32 | - | - | - | - | Boot | |
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Black | - | 1.020" (25.91mm) | 2.189" (55.60mm) | 3.350" (85.09mm) | Polyolefin (PO), Flexible | 46 | 0.500" (12.70mm) | 1.060" (26.92mm) | 3.701" (94.01mm) | - | Boot, Transition - Breakout, 2:1 (Y) | |
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Black | - | 0.740" (18.80mm) | 0.870" (22.10mm) | 1.098" (27.89mm) | NBCCS, Flexible | 44 | 0.100" (2.54mm) | 0.441" (11.20mm) | 0.618" (15.70mm) | 2.098" (53.29mm) | Boot | |
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Black | - | 0.500" (12.70mm) | 1.500" (38.10mm) | - | Polyolefin (PO), Flexible | 13 | 0.500" (12.70mm), 0.120" (3.05mm) | 1.500" (38.10mm), 0.240" (6.10mm) | - | 3.490" (88.65mm) | Boot, Rectangular - Right Angle, 90° | |
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Black | - | 0.380" (9.65mm) | 0.760" (19.30mm) | 1.420" (36.07mm) | Elastomer, Fluid Resistant | 32 | 0.270" (6.86mm) | 0.520" (13.21mm) | 1.770" (44.96mm) | - | Boot, Transition - Breakout, 4:1 | |
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- | - | 0.559" (14.20mm) | 0.760" (19.30mm) | 0.382" (9.70mm) | Polyolefin (PO), Semi-Rigid | 12 | 0.161" (4.09mm) | 0.319" (8.10mm) | 0.961" (24.41mm) | - | Boot - 45° | |
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- | - | 0.560" (14.22mm) | 0.760" (19.30mm) | 0.382" (9.70mm) | Polyolefin (PO), Flexible | 12 | 0.161" (4.09mm) | 0.319" (8.10mm) | 0.961" (24.41mm) | - | Boot - 45° | |
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Black | - | 1.752" (44.50mm) | 2.600" (66.04mm) | 2.680" (68.07mm) | Polyolefin (PO), Semi-Flexible | 85 | 0.661" (16.79mm) | 1.654" (42.01mm) | 2.760" (70.10mm) | 4.252" (108.00mm) | Boot - 90° | |
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Black | - | 1.750" (44.45mm) | 2.600" (66.04mm) | 0.680" (17.27mm) | Polyolefin (PO), Semi-Flexible, Halogen Free | 85 | 0.660" (16.76mm) | 1.650" (41.91mm) | 2.760" (70.10mm) | 4.250" (107.95mm) | Boot - 90° | |
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Black | - | 0.700" (17.78mm) | 1.220" (30.99mm) | 1.390" (35.31mm) | Fluoroelastomer (FKM), Flexible | 42 | 0.280" (7.11mm) | 0.630" (16.00mm) | 0.700" (17.78mm) | 2.630" (66.80mm) | Boot | |
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Black | - | 0.700" (17.78mm) | 1.220" (30.99mm) | - | Fluoroelastomer (FKM), Flexible | - | 0.280" (7.11mm) | 1.079" (27.41mm) | 0.701" (17.81mm) | 1.831" (46.51mm) | Boot | |
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Black | - | 0.701" (17.81mm) | 1.220" (30.99mm) | 1.390" (35.31mm) | Fluoroelastomer (FKM), Flexible | 42 | 0.283" (7.19mm) | 0.630" (16.00mm) | - | 2.630" (66.80mm) | Boot | |
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Black | - | 1.110" (28.19mm) | 1.680" (42.67mm) | 1.730" (43.94mm) | Polyolefin (PO), Flexible | 63 | 0.390" (9.91mm) | 1.680" (42.67mm) | 1.300" (33.02mm) | - | Boot - 90° | |
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Black | - | 1.440" (36.58mm) | 2.000" (50.80mm) | - | Polyolefin (PO) | 21 | 1.400" (35.56mm) | - | - | - | Boot | |
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Black | - | 1.752" (44.50mm) | 2.600" (66.04mm) | 2.680" (68.07mm) | Polyolefin (PO), Semi-Rigid | 85 | 0.661" (16.79mm) | 2.600" (66.04mm) | 2.760" (70.10mm) | 4.252" (108.00mm) | Boot - 90° | |
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Black | - | 1.750" (44.45mm) | 2.600" (66.04mm) | 2.680" (68.07mm) | Elastomer, Fluid Resistant | 85 | 0.660" (16.76mm) | 1.650" (41.91mm) | 2.760" (70.10mm) | 4.250" (107.95mm) | Boot - 90° | |
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Black | Flame Retardant, Fluid Resistant, Fuel Resistant, Heat Resistant, Lip | - | - | - | Fluoroelastomer (FKM), Flexible, Irradiated | 42 | - | - | - | - | 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 | - | 0.740" (18.80mm) | 1.520" (38.61mm) | 2.421" (61.49mm) | Polyolefin (PO), Flexible | 34 | 0.382" (9.70mm) | 0.760" (19.30mm) | 2.902" (73.71mm) | 5.319" (135.10mm) | Boot, Transition - Breakout, 3:1 | |
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Black | - | 0.740" (18.80mm) | 1.520" (38.61mm) | 2.420" (61.47mm) | Polyolefin (PO), Semi-Rigid | 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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Black | - | 1.330" (33.78mm) | 2.090" (53.09mm) | 2.080" (52.83mm) | Polyolefin (PO), Semi-Flexible, Halogen Free | 85 | 1.840" (46.74mm) | 2.090" (53.09mm) | 1.260" (32.00mm) | - | Boot - 90° | |
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- | - | 0.602" (15.29mm) | 1.197" (30.40mm) | 1.618" (41.10mm) | Polyolefin (PO), Semi-Rigid | - | 0.402" (10.21mm) | 0.799" (20.30mm) | 1.500" (38.10mm) | 3.252" (82.60mm) | Boot, Transition - Side Breakout, 90° | |
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Black | - | 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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Black | - | 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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Black | - | 1.270" (32.26mm) | 1.780" (45.21mm) | 0.600" (15.24mm) | Polyolefin (PO), Flexible | 63 | 1.500" (38.10mm) | 1.510" (38.35mm) | 2.920" (74.17mm) | 4.500" (114.30mm) | Boot | |
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Black | - | 1.750" (44.45mm) | 2.600" (66.04mm) | 2.680" (68.07mm) | Zerohal™ | 85 | 0.660" (16.76mm) | 2.600" (66.04mm) | 1.890" (48.01mm) | 4.250" (107.95mm) | Boot - 90° | |
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Black | - | - | - | - | Polyolefin (PO), Semi-Flexible | 34 | - | - | - | - | Boot, Transition - Side Breakout, 45° | |
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Black | Chemical Resistant, Lip | 0.710" (18.03mm) | 1.220" (30.99mm) | 1.380" (35.05mm) | Fluoroelastomer (FKM), Flexible | 42 | 0.280" (7.11mm) | 0.591" (15.01mm) | 0.984" (24.99mm) | 2.640" (67.06mm) | Boot | |
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Black | - | 0.450" (11.43mm) | 1.350" (34.29mm) | 2.370" (60.20mm) | Polyolefin (PO), Flexible | 12 | 0.450" (11.43mm) | 0.900" (22.86mm) | 2.370" (60.20mm) | 4.740" (120.40mm) | Boot, Transition - Breakout, 2:1 (T) | |
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Black | - | 0.450" (11.43mm) | 1.950" (49.53mm) | - | Polyolefin (PO), Flexible | 12 | 0.450" (11.43mm) | 1.350" (34.29mm) | - | 2.250" (57.15mm) | Boot, Transition - Breakout, 2:1 (T) | |
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Black | - | 1.098" (27.89mm) | 2.098" (53.29mm) | 1.500" (38.10mm) | Polyolefin (PO), Semi-Flexible | 56 | 0.701" (17.81mm) | - | - | 6.902" (175.31mm) | Boot | |
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Black | - | 0.450" (11.43mm) | 1.350" (34.29mm) | 2.370" (60.20mm) | Polyolefin (PO), Flexible | 12 | 0.450" (11.43mm) | 0.900" (22.86mm) | 2.370" (60.20mm) | 4.740" (120.40mm) | Boot, Transition - Breakout, 2:1 (T) | |
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Black | - | 0.551" (14.00mm) | 0.710" (18.03mm) | 0.984" (24.99mm) | Polyolefin (PO), Semi-Rigid | 12 | 0.130" (3.30mm) | 0.320" (8.13mm) | 0.591" (15.01mm) | 1.291" (32.79mm) | Boot - 90° | |
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Black | - | 1.100" (27.94mm) | 1.690" (42.93mm) | 0.450" (11.43mm) | Fluoroelastomer (FKM), Flexible | 63 | 0.390" (9.91mm) | 0.980" (24.89mm) | 0.350" (8.89mm) | - | Boot - 45° |
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