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 | Abrasion Resistant, Chemical Resistant, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resistant | 0.740" (18.80mm) | 1.180" (29.97mm) | - | Elastomer, Semi-Rigid, Irradiated | 32 | 0.331" (8.41mm) | 1.180" (29.97mm) | - | 2.010" (51.05mm) | Boot | |
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Black | Drain Holes, Flame Retardant, Fluid Resistant, Heat Resistant, Lip | 0.740" (18.80mm) | 1.161" (29.49mm) | 0.469" (11.91mm) | Polyolefin (PO), 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 | - | 0.270" (6.86mm) | 0.690" (17.53mm) | - | Polyolefin (PO), Flexible | 11 | 0.190" (4.83mm) | 0.560" (14.22mm) | 0.690" (17.53mm) | 4.750" (120.65mm) | Boot | |
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Black, White | Drain Holes, Flame Retardant, Fluid Resistant, Heat Resistant, Lip | 0.740" (18.80mm) | 1.161" (29.49mm) | 0.480" (12.19mm) | Polyolefin (PO), Semi-Rigid, Irradiated | 32 | 0.331" (8.41mm) | 1.161" (29.49mm) | 4.441" (112.80mm) | 5.461" (138.71mm) | Boot | |
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Black | Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Potting (Injection) Port, Vent Port | 0.740" (18.80mm) | 1.160" (29.46mm) | 0.600" (15.24mm) | Polyolefin (PO), Semi-Rigid, Irradiated | 32 | 0.330" (8.38mm) | 1.160" (29.46mm) | - | 1.620" (41.15mm) | Boot | |
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Black | Flame Retardant, Fluid Resistant, Heat Resistant, Lip | 0.740" (18.80mm) | 1.161" (29.49mm) | 0.480" (12.19mm) | Polyolefin (PO), Semi-Rigid, Irradiated | 32 | 0.331" (8.41mm) | 1.161" (29.49mm) | 2.480" (62.99mm) | 3.500" (88.90mm) | Boot | |
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Black | Flame Retardant, Fluid Resistant, Heat Resistant, Lip | 0.740" (18.80mm) | 1.161" (29.49mm) | 0.480" (12.19mm) | Polyolefin (PO), Flexible, Irradiated | 32 | 0.331" (8.41mm) | 1.161" (29.49mm) | 2.480" (62.99mm) | 3.500" (88.90mm) | Boot | |
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Black | Flame Retardant, Fluid Resistant, Heat Resistant, Lip | 0.740" (18.80mm) | 1.161" (29.49mm) | 0.480" (12.19mm) | Polyolefin (PO), Flexible, Irradiated | 32 | 0.331" (8.41mm) | 1.161" (29.49mm) | 2.480" (62.99mm) | 3.500" (88.90mm) | Boot | |
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Black | Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Potting (Injection) Port, Vent Port | 0.740" (18.80mm) | 1.157" (29.39mm) | 0.598" (15.19mm) | Polyolefin (PO), Flexible, Irradiated | 32 | 0.331" (8.41mm) | 1.157" (29.39mm) | - | 3.500" (88.90mm) | Boot | |
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Black | Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Potting (Injection) Port, Vent Port | 0.740" (18.80mm) | 1.157" (29.39mm) | 0.598" (15.19mm) | Polyolefin (PO), Flexible, Irradiated | 32 | 0.331" (8.41mm) | 1.157" (29.39mm) | - | 3.500" (88.90mm) | Boot | |
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Black, Red | Flame Retardant, Fluid Resistant, Heat Resistant, Lip | 0.740" (18.80mm) | 1.161" (29.49mm) | 0.480" (12.19mm) | Polyolefin (PO), 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 | Adhesive Coating, Lip | 0.409" (10.39mm) | 0.941" (23.90mm) | 0.350" (8.89mm) | Polyolefin (PO), Semi-Flexible, Halogen Free | 21 | 0.220" (5.59mm) | 0.941" (23.90mm) | 0.335" (8.51mm) | 1.020" (25.91mm) | Boot | |
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Black | Adhesive Coating, Flame Retardant, Potting (Injection) Port | 0.862" (21.89mm) | 1.420" (36.07mm) | 1.630" (41.40mm) | Polyolefin (PO), Semi-Rigid | 53 | 0.339" (8.61mm) | 1.420" (36.07mm) | 0.870" (22.10mm) | 2.902" (73.71mm) | Boot | |
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Black | Flame Retardant, Fluid Resistant, Heat Resistant, Lip | 0.740" (18.80mm) | 1.161" (29.49mm) | 0.819" (20.80mm) | Polyolefin (PO), Semi-Rigid, Irradiated | 32 | 0.331" (8.41mm) | 1.161" (29.49mm) | 4.500" (114.30mm) | 5.760" (146.30mm) | Boot - 90° | |
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Black | Flame Retardant, Fluid Resistant, Heat Resistant, Lip | 1.343" (34.11mm) | 1.717" (43.61mm) | 1.031" (26.19mm) | Polyolefin (PO), Flexible, Irradiated | 63 | 0.142" (3.61mm) | 0.449" (11.40mm) | 2.272" (57.71mm) | 3.921" (99.59mm) | Boot | |
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Black | Flame Retardant, Fluid Resistant, Heat Resistant, Lip | 0.740" (18.80mm) | 1.161" (29.49mm) | 0.819" (20.80mm) | Polyolefin (PO), Flexible, Irradiated | 32 | 0.331" (8.41mm) | 1.161" (29.49mm) | 4.500" (114.30mm) | 5.760" (146.30mm) | Boot - 90° | |
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Black | Adhesive Coating, Lip | 0.882" (22.40mm) | 1.420" (36.07mm) | 1.654" (42.01mm) | Polyolefin (PO), Semi-Flexible, Halogen Free | 53 | 0.331" (8.41mm) | 0.830" (21.08mm) | 1.180" (29.97mm) | 3.150" (80.01mm) | Boot | |
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Black | Flame Retardant, Fluid Resistant, Heat Resistant, Lip | 1.343" (34.11mm) | 1.717" (43.61mm) | 1.031" (26.19mm) | Polyolefin (PO), Flexible, Irradiated | 63 | 0.142" (3.61mm) | 0.449" (11.40mm) | 2.272" (57.71mm) | 3.921" (99.59mm) | Boot | |
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Black | Flame Retardant, Fluid Resistant, Heat Resistant, Lip | 0.740" (18.80mm) | 1.161" (29.49mm) | 0.819" (20.80mm) | Polyolefin (PO), Semi-Rigid, Irradiated | 32 | 0.331" (8.41mm) | 1.161" (29.49mm) | 4.500" (114.30mm) | 5.760" (146.30mm) | Boot - 90° | |
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Black | - | 0.700" (17.78mm) | 1.220" (30.99mm) | 1.390" (35.31mm) | Polyolefin (PO), Flexible | 42 | 0.280" (7.11mm) | 1.220" (30.99mm) | 0.700" (17.78mm) | 2.630" (66.80mm) | Boot | |
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Black | - | 0.700" (17.78mm) | 1.220" (30.99mm) | 1.390" (35.31mm) | Polyolefin (PO), Semi-Rigid | 42 | 0.280" (7.11mm) | 1.220" (30.99mm) | 0.700" (17.78mm) | 2.630" (66.80mm) | Boot | |
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Black | - | 0.700" (17.78mm) | 1.220" (30.99mm) | 1.390" (35.31mm) | Polyolefin (PO), Flexible | 42 | 0.280" (7.11mm) | 1.220" (30.99mm) | 0.700" (17.78mm) | 2.630" (66.80mm) | Boot | |
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Black | - | 0.700" (17.78mm) | 1.220" (30.99mm) | 1.390" (35.31mm) | Polyolefin (PO), Flexible | - | 0.280" (7.11mm) | 1.220" (30.99mm) | 0.701" (17.81mm) | 2.630" (66.80mm) | Boot | |
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Black | Adhesive, Lip | 1.110" (28.19mm) | 1.531" (38.89mm) | 0.551" (14.00mm) | Polyolefin (PO), Flexible | 53 | 0.430" (10.92mm) | 1.240" (31.50mm) | 5.598" (142.19mm) | 7.000" (177.80mm) | Boot | |
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Black | Adhesive Coating, Flame Retardant, Lip | 0.710" (18.03mm) | 1.220" (30.99mm) | 0.591" (15.01mm) | Polyolefin (PO), Semi-Rigid | 42 | 0.280" (7.11mm) | 1.220" (30.99mm) | 0.670" (17.02mm) | 1.850" (46.99mm) | Boot | |
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Black | Adhesive Coating, Fluid Resistant, Lip | 0.710" (18.03mm) | 1.220" (30.99mm) | 0.591" (15.01mm) | Elastomer, Semi-Rigid | 42 | 0.280" (7.11mm) | 1.220" (30.99mm) | 0.670" (17.02mm) | 1.850" (46.99mm) | Boot | |
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Black | Adhesive Coating, Fluid Resistant, Lip, Potting (Injection) Port | 0.710" (18.03mm) | 1.220" (30.99mm) | 0.591" (15.01mm) | Elastomer, Semi-Rigid | 42 | 0.280" (7.11mm) | 1.220" (30.99mm) | 0.670" (17.02mm) | 1.850" (46.99mm) | Boot | |
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Black | Adhesive Coating, Fluid Resistant, Lip | 0.710" (18.03mm) | 1.102" (27.99mm) | 1.380" (35.05mm) | Elastomer, Semi-Rigid | 42 | 0.280" (7.11mm) | 0.394" (10.01mm) | 0.670" (17.02mm) | 2.640" (67.06mm) | Boot | |
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Black | Abrasion Resistant, Chemical Resistant, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Potting (Injection) Port, Strain | 1.024" (26.00mm) | 1.346" (34.19mm) | 0.740" (18.80mm) | Elastomer, 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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Black | Adhesive Coating, Fluid Resistant, Lip | 0.710" (18.03mm) | 1.220" (30.99mm) | 0.591" (15.01mm) | Elastomer, Semi-Rigid | 42 | 0.280" (7.11mm) | 1.220" (30.99mm) | 0.670" (17.02mm) | 1.850" (46.99mm) | Boot | |
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Black | Abrasion Resistant, Adhesive Coating, Chemical Resistant, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resist | 0.250" (6.35mm) | 0.394" (10.01mm) | 0.453" (11.51mm) | Elastomer, Semi-Rigid, Irradiated | 1 | 0.080" (2.03mm) | 0.236" (5.99mm) | 0.236" (5.99mm) | 0.492" (12.50mm) | Boot - 90° | |
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Black | Adhesive Coating, Fluid Resistant | 0.862" (21.89mm) | 1.420" (36.07mm) | 1.630" (41.40mm) | Elastomer, Semi-Rigid | 53 | 0.339" (8.61mm) | 1.420" (36.07mm) | 0.870" (22.10mm) | 2.902" (73.71mm) | Boot | |
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Black | Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Potting (Injection) Port | 0.591" (15.00mm) | 1.012" (25.70mm) | 0.591" (15.01mm) | Polyolefin (PO), Semi-Rigid, Irradiated | 21 | 0.291" (7.39mm) | 1.012" (25.70mm) | 3.882" (98.60mm) | 4.772" (121.21mm) | Boot | |
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Black | - | 0.560" (14.22mm) | 1.180" (29.97mm) | 1.060" (26.92mm) | Elastomer, Fluid Resistant | 32 | 0.230" (5.84mm) | 1.180" (29.97mm) | 0.330" (8.38mm) | - | Boot - 90° | |
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Black | - | 0.560" (14.22mm) | 1.180" (29.97mm) | 1.060" (26.92mm) | Elastomer, Fluid Resistant | 32 | 0.230" (5.84mm) | 0.590" (14.99mm) | 0.790" (20.07mm) | 1.260" (32.00mm) | Boot - 90° | |
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Black | - | 0.240" (6.10mm) | 0.520" (13.21mm) | 0.902" (22.91mm) | Polyolefin (PO), Semi-Rigid | 12 | 0.118" (3.00mm) | 0.260" (6.60mm) | 0.839" (21.31mm) | 1.760" (44.70mm) | Boot, Transition - Side Breakout, 45° | |
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Black | - | 0.240" (6.10mm) | 0.520" (13.21mm) | 0.902" (22.91mm) | Polyolefin (PO), Flexible | 12 | 0.118" (3.00mm) | 0.260" (6.60mm) | 0.839" (21.31mm) | 1.760" (44.70mm) | Boot, Transition - Side Breakout, 45° | |
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Black | - | 0.240" (6.10mm) | 0.520" (13.21mm) | 0.902" (22.91mm) | Elastomer, Semi-Rigid | 12 | 0.118" (3.00mm) | 0.260" (6.60mm) | 0.839" (21.31mm) | 1.760" (44.70mm) | Boot, Transition - Side Breakout, 45° | |
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Black | Abrasion Resistant, Adhesive Coating, Chemical Resistant, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resist | 0.449" (11.40mm) | - | 0.610" (15.49mm) | Elastomer, Semi-Rigid, Irradiated | 11 | 0.252" (6.40mm) | - | 0.311" (7.90mm) | 1.000" (25.40mm) | Boot - 90° | |
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Black | Abrasion Resistant, Adhesive Coating, Corrosion Resistant, Flame Retardant, No Markings, Weather Resistant | 0.900" (22.86mm) | 1.693" (43.00mm) | 2.300" (58.42mm) | Polyolefin (PO), Semi-Rigid | - | 0.300" (7.62mm) | 0.820" (20.83mm) | 1.181" (30.00mm) | - | Boot, Transition - Breakout, 3:1 | |
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Black | Flame Retardant, Fluid Resistant, Heat Resistant, Lip | 0.591" (15.00mm) | 1.012" (25.70mm) | 0.780" (19.81mm) | Polyolefin (PO), Semi-Rigid, Irradiated | 21 | 0.291" (7.39mm) | 1.012" (25.70mm) | 2.118" (53.80mm) | 3.098" (78.69mm) | Boot - 90° | |
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Black | Flame Retardant, Fluid Resistant, Heat Resistant, Lip | 0.591" (15.00mm) | 1.012" (25.70mm) | 0.780" (19.81mm) | Polyolefin (PO), Flexible, Irradiated | 21 | 0.291" (7.39mm) | 1.012" (25.70mm) | 2.118" (53.80mm) | 3.098" (78.69mm) | Boot - 90° | |
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Black | - | 2.280" (57.91mm) | 2.280" (57.91mm) | - | Polyolefin (PO), Flexible | 52 | 0.421" (10.69mm) | 0.752" (19.10mm) | - | - | Boot, Rectangular - Right Angle, 90° | |
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Black | - | 0.410" (10.41mm) | 0.940" (23.88mm) | 0.890" (22.61mm) | Polyolefin (PO), Semi-Flexible, Halogen Free | 21 | 0.220" (5.59mm) | 0.550" (13.97mm) | 0.580" (14.73mm) | - | Boot - 90° | |
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White | - | 0.044" (1.12mm) | 1.681" (42.70mm) | 0.067" (1.70mm) | Polyolefin (PO), Semi-Rigid | - | 0.015" (0.38mm) | 0.067" (1.70mm) | 0.028" (0.71mm) | - | Boot - 90° | |
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Black | - | 0.520" (13.21mm) | 1.070" (27.18mm) | 0.480" (12.19mm) | Polyolefin (PO), Flexible | 21 | 0.300" (7.62mm) | 0.820" (20.83mm) | 2.360" (59.94mm) | 3.520" (89.41mm) | Boot | |
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Black | Adhesive Coating, Lip | 0.559" (14.20mm) | 1.180" (29.97mm) | 0.790" (20.07mm) | Polyolefin (PO), Semi-Flexible, Halogen Free | 32 | 0.232" (5.89mm) | 1.180" (29.97mm) | 0.453" (11.51mm) | 1.690" (42.93mm) | Boot | |
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Black | - | 1.110" (28.19mm) | 1.160" (29.46mm) | 0.870" (22.10mm) | Polyolefin (PO), Semi-Flexible | 21 | 0.209" (5.31mm) | 0.402" (10.21mm) | - | 1.531" (38.89mm) | Boot, Rectangular | |
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Black | - | 0.390" (9.91mm) | 0.941" (23.90mm) | 0.461" (11.71mm) | EPB, Flexible | 11 | 0.461" (11.71mm) | 0.681" (17.30mm) | 3.402" (86.41mm) | 4.169" (105.89mm) | Boot | |
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Black | - | 0.940" (23.88mm) | 0.940" (23.88mm) | 3.400" (86.36mm) | EPB, Flexible | 11 | 0.260" (6.60mm) | 0.680" (17.27mm) | 0.460" (11.68mm) | 4.170" (105.92mm) | Boot |
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