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 | Total Length Supplied | Type | |||
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Black | - | 0.728" (18.49mm) | 1.420" (36.07mm) | 1.630" (41.40mm) | Fluoroelastomer (FKM), Flexible | 53 | 0.331" (8.41mm) | 0.728" (18.49mm) | - | 3.150" (80.01mm) | - | Boot | |
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Black | - | 0.880" (22.35mm) | 1.420" (36.07mm) | 1.630" (41.40mm) | Fluoroelastomer (FKM), Flexible | 53 | 0.330" (8.38mm) | 0.730" (18.54mm) | 0.820" (20.83mm) | 3.150" (80.01mm) | - | Boot | |
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Black | Adhesive Coating | 0.449" (11.40mm) | 1.350" (34.29mm) | 2.480" (62.99mm) | EPB, Flexible | 2 | 0.449" (11.40mm) | 0.902" (22.91mm) | 2.480" (62.99mm) | - | - | Boot, Transition - Breakout, 2:1 (Y) | |
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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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- | - | 0.870" (22.10mm) | 1.417" (35.99mm) | 1.575" (40.01mm) | Fluoroelastomer (FKM), Flexible | - | 0.331" (8.41mm) | 1.417" (35.99mm) | 2.362" (60.00mm) | - | - | Boot - 45° | |
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- | - | 1.000" (25.40mm) | 2.189" (55.60mm) | 4.382" (111.30mm) | Polyolefin (PO), Semi-Rigid | - | 0.488" (12.40mm) | 1.059" (26.90mm) | 3.059" (77.70mm) | 8.752" (222.30mm) | - | Boot, Transition - Side Breakout, 90° | |
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Black | - | 0.260" (6.60mm) | 0.780" (19.81mm) | 1.590" (40.39mm) | Elastomer, Fluid Resistant | 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 | - | 0.700" (17.78mm) | 1.080" (27.43mm) | 1.220" (30.99mm) | Fluoroelastomer (FKM), Flexible | 42 | 0.280" (7.11mm) | 1.080" (27.43mm) | 0.500" (12.70mm) | 1.440" (36.58mm) | - | Boot - 90° | |
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Black | - | 2.161" (54.89mm) | 2.118" (53.80mm) | - | Polyolefin (PO), Flexible | 53 | 0.882" (22.40mm) | 1.800" (45.72mm) | 1.118" (28.40mm) | 6.752" (171.50mm) | - | Boot | |
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Black | - | 1.600" (40.64mm) | 2.250" (57.15mm) | - | EPB, Flexible | 63 | 0.900" (22.86mm) | 2.250" (57.15mm) | 1.380" (35.05mm) | 9.300" (236.22mm) | - | Boot | |
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- | - | 0.697" (17.70mm) | 1.398" (35.51mm) | 1.000" (25.40mm) | Zerohal™ | - | 0.303" (7.70mm) | 0.598" (15.19mm) | 1.000" (25.40mm) | 2.000" (50.80mm) | - | Boot, Transition - Side Breakout, 90° | |
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Black | Flame Retardant, Lip | 0.870" (22.10mm) | 1.248" (31.70mm) | 0.480" (12.19mm) | Fluoropolymer | 42 | 0.421" (10.69mm) | 1.248" (31.70mm) | 4.900" (124.46mm) | 6.280" (159.51mm) | - | Boot | |
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- | - | 0.449" (11.40mm) | 1.354" (34.39mm) | 1.618" (41.10mm) | NBCCS, Flexible | - | 0.201" (5.11mm), 0.449" (11.40mm) | 0.500" (12.70mm), 0.902" (22.91mm) | 1.618" (41.10mm) | - | - | Boot, Transition - Breakout, 2:1 (Y) | |
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Black | Drain Holes, Flame Retardant, Fluid Resistant, Fuel Resistant, Heat Resistant, Lip | 0.740" (18.80mm) | 1.161" (29.49mm) | 0.469" (11.91mm) | Fluoroelastomer (FKM), Flexible, Irradiated | 32 | 0.331" (8.41mm) | 0.720" (18.29mm) | 4.441" (112.80mm) | 5.461" (138.71mm) | - | Boot | |
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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) | 0.720" (18.29mm) | 4.441" (112.80mm) | 5.461" (138.71mm) | - | Boot | |
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Black | Flame Retardant, Fluid Resistant, Fuel Resistant, Heat Resistant, Lip, Potting (Injection) Port, Vent Port | 0.740" (18.80mm) | 1.157" (29.39mm) | 0.598" (15.19mm) | Fluoroelastomer (FKM), Flexible, Irradiated | 32 | 0.331" (8.41mm) | 0.717" (18.21mm) | - | 3.500" (88.90mm) | - | Boot | |
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Black | Flame Retardant, Fluid Resistant, Fuel Resistant, Heat Resistant, Lip | 0.740" (18.80mm) | 1.161" (29.49mm) | 0.610" (15.49mm) | 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 | - | 1.000" (25.40mm) | 2.189" (55.60mm) | 4.382" (111.30mm) | Polyolefin (PO), Semi-Rigid | 58 | 0.488" (12.40mm) | 1.060" (26.92mm) | 3.059" (77.70mm) | 8.752" (222.30mm) | - | Boot, Transition - Breakout, 2:1 (T) | |
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Black | - | 1.000" (25.40mm) | 2.189" (55.60mm) | 4.382" (111.30mm) | Polyolefin (PO), Flexible | 58 | 0.488" (12.40mm) | 1.060" (26.92mm) | 3.059" (77.70mm) | 8.752" (222.30mm) | - | Boot, Transition - Breakout, 2:1 (T) | |
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Black | - | 1.000" (25.40mm) | 2.189" (55.60mm) | 4.382" (111.30mm) | Polyolefin (PO), Flexible | 58 | 0.488" (12.40mm) | 1.060" (26.92mm) | 3.059" (77.70mm) | 8.752" (222.30mm) | - | Boot, Transition - Breakout, 2:1 (T) | |
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Black | Adhesive Coating, Fluid Resistant | 1.000" (25.40mm) | 2.189" (55.60mm) | 4.382" (111.30mm) | Elastomer, Semi-Rigid | 58 | 0.488" (12.40mm) | 1.060" (26.92mm) | 3.059" (77.70mm) | 8.752" (222.30mm) | - | Boot, Transition - Breakout, 2:1 (T) | |
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Black | - | 1.450" (36.83mm) | 2.850" (72.39mm) | 1.600" (40.64mm) | Polyolefin (PO), Semi-Flexible, Halogen Free | 67 | 0.950" (24.13mm) | 2.850" (72.39mm) | - | 7.240" (183.90mm) | - | Boot | |
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- | - | 1.510" (38.35mm) | 2.850" (72.39mm) | 1.600" (40.64mm) | Polyolefin (PO), Semi-Flexible, Halogen Free | - | 0.950" (24.13mm) | 2.850" (72.39mm) | 1.950" (49.53mm) | 7.240" (183.90mm) | - | Boot | |
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Black | Flame Retardant | 1.380" (35.05mm) | 1.850" (46.99mm) | 2.700" (68.58mm) | Polyolefin (PO), Semi-Rigid | 75 | 0.640" (16.26mm) | 1.400" (35.56mm) | 1.750" (44.45mm) | 5.000" (127.00mm) | - | Boot | |
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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) | 4.500" (114.30mm) | 5.760" (146.30mm) | - | Boot - 90° | |
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Black | - | 0.790" (20.07mm) | 2.370" (60.20mm) | 3.460" (87.88mm) | Polyolefin (PO), Flexible | 13 | 0.790" (20.07mm) | 1.580" (40.13mm) | 3.460" (87.88mm) | 6.920" (175.77mm) | - | Boot, Transition - Breakout, 2:1 (T) | |
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Black | - | 0.728" (18.49mm) | 1.520" (38.61mm) | 2.949" (74.90mm) | Polyolefin (PO), Flexible | 54 | 0.382" (9.70mm) | 0.760" (19.30mm) | 2.571" (65.30mm) | - | - | Boot, Transition - Breakout, 4:1 | |
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Black | - | 0.728" (18.49mm) | 1.520" (38.61mm) | 2.949" (74.90mm) | Polyolefin (PO), Flexible | 54 | 0.382" (9.70mm) | 0.760" (19.30mm) | 2.571" (65.30mm) | - | - | Boot, Transition - Breakout, 4:1 | |
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Black | Adhesive Coating, Fluid Resistant | 0.728" (18.49mm) | 1.520" (38.61mm) | 2.949" (74.90mm) | Elastomer, Semi-Rigid | 54 | 0.382" (9.70mm) | 0.760" (19.30mm) | 2.571" (65.30mm) | - | - | Boot, Transition - Breakout, 4:1 | |
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Black | - | 0.728" (18.49mm) | 1.520" (38.61mm) | 2.949" (74.90mm) | Polyolefin (PO), Semi-Rigid | 54 | 0.382" (9.70mm) | 0.760" (19.30mm) | 2.571" (65.30mm) | - | - | Boot, Transition - Breakout, 4:1 | |
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Black | - | 1.420" (36.07mm) | 1.570" (39.88mm) | 0.670" (17.02mm) | - | 52 | 0.300" (7.62mm) | 0.470" (11.94mm) | 0.390" (9.91mm) | 2.360" (59.94mm) | - | Boot | |
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Black | - | 1.090" (27.69mm) | 2.050" (52.07mm) | 3.000" (76.20mm) | Polyolefin (PO), Flexible | 34 | 0.280" (7.11mm) | 0.800" (20.32mm) | - | 4.250" (107.95mm) | - | Boot, Transition - Breakout, 4:1 | |
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Black | Flame Retardant, Fluid Resistant, Fuel Resistant, Heat Resistant, Lip | 1.161" (29.49mm) | 1.470" (37.34mm) | 0.961" (24.41mm) | Fluoroelastomer (FKM), Flexible, Irradiated | 53 | 0.409" (10.39mm) | 0.909" (23.09mm) | 2.618" (66.50mm) | 4.252" (108.00mm) | - | Boot - 90° | |
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Black | - | 0.600" (15.24mm) | 1.000" (25.40mm) | - | Elastomer, Fluid Resistant | 13 | 0.600" (15.24mm), 0.200" (5.08mm) | 1.000" (25.40mm), 0.500" (12.70mm) | 1.060" (26.92mm) | 3.620" (91.95mm) | - | Boot, Transition - Breakout, 3:1 | |
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Black | - | 1.750" (44.45mm) | 2.340" (59.44mm) | 3.600" (91.44mm) | Polyolefin (PO), Semi-Rigid | 86 | 0.820" (20.83mm) | 1.720" (43.69mm) | 1.650" (41.91mm) | 6.250" (158.75mm) | - | Boot | |
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Black | - | 1.098" (27.89mm) | 1.677" (42.60mm) | - | Fluoropolymer | - | 0.882" (22.40mm) | 1.677" (42.60mm) | 1.118" (28.40mm) | 6.701" (170.21mm) | - | Boot | |
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Black | - | 1.000" (25.40mm) | 2.189" (55.60mm) | 3.500" (88.90mm) | Polyolefin (PO), Semi-Rigid | 46 | 0.488" (12.40mm) | 1.060" (26.92mm) | 4.059" (103.10mm) | 7.560" (192.02mm) | - | Boot, Transition - Breakout, 3:1 | |
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Black | - | 1.000" (25.40mm) | 2.189" (55.60mm) | 3.500" (88.90mm) | Polyolefin (PO), Semi-Rigid | 46 | 0.488" (12.40mm) | 1.060" (26.92mm) | 4.059" (103.10mm) | 7.560" (192.02mm) | - | Boot, Transition - Breakout, 3:1 | |
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Black | - | 1.520" (38.61mm) | 2.170" (55.12mm) | 0.980" (24.89mm) | Elastomer, Fluid Resistant | 14 | 0.680" (17.27mm) | 1.500" (38.10mm) | 3.310" (84.07mm) | - | - | Boot - 45° | |
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Black | - | 0.880" (22.35mm) | 1.420" (36.07mm) | 0.831" (21.11mm) | Fluoroelastomer (FKM), Flexible | - | 0.330" (8.38mm) | 0.728" (18.49mm) | 0.819" (20.80mm) | 2.350" (59.69mm) | 2.350" (59.69mm) | Boot | |
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Black | - | 0.880" (22.35mm) | 1.420" (36.07mm) | - | Fluoroelastomer (FKM), Flexible | - | 0.330" (8.38mm) | 1.260" (32.00mm) | 0.701" (17.81mm) | 2.350" (59.69mm) | - | Boot | |
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Black | - | 2.181" (55.40mm) | 3.449" (87.60mm) | 3.118" (79.20mm) | Polyolefin (PO), Semi-Rigid | 96 | 0.921" (23.39mm) | 3.449" (87.60mm) | 3.449" (87.60mm) | - | - | Boot - 90° | |
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Black | - | 2.181" (55.40mm) | 3.449" (87.60mm) | 3.118" (79.20mm) | Elastomer, Semi-Rigid | 96 | 0.921" (23.39mm) | 3.449" (87.60mm) | 3.449" (87.60mm) | - | - | Boot - 90° | |
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Black | - | 1.270" (32.26mm) | 2.250" (57.15mm) | 1.033" (26.24mm) | Polyolefin (PO), Flexible | 100 | - | - | 0.900" (22.86mm) | - | - | Boot - 45° |
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