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 | - | 0.600" (15.24mm) | 1.200" (30.48mm) | 2.100" (53.34mm) | Elastomer, Fluid Resistant | 14 | 0.350" (8.89mm) | 0.700" (17.78mm) | 1.300" (33.02mm) | 4.600" (116.84mm) | Boot, Transition - Side Breakout, 90° | |
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Black | - | 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 | - | 0.469" (11.91mm) | 1.800" (45.72mm) | 2.480" (62.99mm) | Fluoroelastomer (FKM), Flexible | 2 | 0.469" (11.91mm) | 1.150" (29.21mm) | 2.480" (62.99mm) | - | Boot, Transition - Breakout, 2:1 (Y) | |
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Black | - | 0.520" (13.21mm) | 1.060" (26.92mm) | 1.690" (42.93mm) | Polyolefin (PO), Semi-Flexible, Halogen Free | 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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- | - | 1.339" (34.01mm) | 1.420" (36.07mm) | 1.772" (45.01mm) | Elastomer | - | 0.535" (13.59mm) | 1.024" (26.01mm) | 0.787" (19.99mm) | 2.362" (60.00mm) | Boot - 90° | |
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Black | - | 1.000" (25.40mm) | 2.189" (55.60mm) | 3.500" (88.90mm) | Polyolefin (PO), Semi-Flexible | 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 | - | 0.272" (6.91mm) | 0.520" (13.21mm) | 1.512" (38.40mm) | Fluoroelastomer (FKM), Flexible | 11 | 0.138" (3.51mm) | 0.260" (6.60mm) | 0.949" (24.10mm) | - | 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) | 0.710" (18.03mm) | Fluoroelastomer (FKM), Flexible, Irradiated | 53 | 0.409" (10.39mm) | 1.470" (37.34mm) | 5.598" (142.19mm) | 7.000" (177.80mm) | Boot | |
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Black | Flame Retardant, Fluid Resistant, Fuel Resistant, Heat Resistant, Lip, Potting (Injection) Port, Vent Port | 1.161" (29.49mm) | 1.470" (37.34mm) | 0.701" (17.81mm) | Fluoroelastomer (FKM), Flexible, Irradiated | 53 | 0.413" (10.49mm) | 0.909" (23.09mm) | - | 4.252" (108.00mm) | Boot | |
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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 | - | 0.700" (17.78mm) | 1.220" (30.99mm) | - | Fluoroelastomer (FKM), Flexible | 42 | 0.280" (7.11mm) | 1.080" (27.43mm) | 0.701" (17.81mm) | 1.831" (46.51mm) | Boot | |
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Black | Flame Retardant, Fluid Resistant, Fuel Resistant, Heat Resistant, Lip, Potting (Injection) Port | 0.512" (13.00mm) | 0.760" (19.30mm) | 0.642" (16.31mm) | Fluoroelastomer (FKM), Flexible, Irradiated | 21 | 0.083" (2.11mm) | 0.177" (4.50mm) | 0.858" (21.79mm) | 1.752" (44.50mm) | Boot - 90° | |
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Black | Adhesive Coating | 2.252" (57.20mm) | 3.402" (86.41mm) | 4.450" (113.03mm) | Polyolefin (PO), Semi-Flexible, Halogen Free | 96 | 1.060" (26.92mm) | 2.811" (71.40mm) | 3.150" (80.01mm) | 8.370" (212.60mm) | Boot | |
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Black | - | 0.600" (15.24mm) | 1.000" (25.40mm) | - | Polyolefin (PO), Semi-Rigid | 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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- | - | 0.598" (15.19mm) | 1.185" (30.10mm) | - | Polyolefin (PO), Semi-Rigid | - | 0.169" (4.29mm) | 0.500" (12.70mm) | 1.110" (28.19mm) | 3.850" (97.79mm) | Boot, Transition - Breakout, 3:1 | |
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Black | Abrasion Resistant, Adhesive Coating, Corrosion Resistant, Flame Retardant, Weather Resistant | 0.900" (22.86mm) | 1.900" (48.26mm) | 3.000" (76.20mm) | Polyolefin (PO), Semi-Rigid | - | 0.300" (7.62mm) | 0.750" (19.05mm) | 1.181" (30.00mm) | - | Boot, Transition - Breakout, 2:1 | |
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Black | - | 1.000" (25.40mm) | 2.189" (55.60mm) | 3.559" (90.40mm) | Polyolefin (PO), Semi-Rigid | 48 | 0.230" (5.84mm) | 0.520" (13.21mm) | 2.260" (57.40mm) | 7.110" (180.59mm) | Boot, Transition - Breakout, 2:1 (T) | |
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Black | - | 1.000" (25.40mm) | 2.189" (55.60mm) | 3.559" (90.40mm) | Polyolefin (PO), Flexible | 48 | 0.230" (5.84mm) | 0.520" (13.21mm) | 2.260" (57.40mm) | 7.110" (180.59mm) | Boot, Transition - Breakout, 2:1 (T) | |
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- | Flame Retardant, Fluid Resistant, Heat Resistant, Lip | - | - | - | Polyolefin (PO), Semi-Rigid, Irradiated | 42 | - | - | - | - | Boot | |
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Black | - | 0.240" (6.10mm) | 0.520" (13.21mm) | 0.902" (22.91mm) | Fluoroelastomer (FKM), 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 | - | 1.060" (26.92mm) | 2.189" (55.60mm) | 3.280" (83.31mm) | Polyolefin (PO), Semi-Rigid | 48 | 0.272" (6.91mm) | 0.520" (13.21mm) | 2.831" (71.91mm) | 7.280" (184.91mm) | Boot, Transition - Side Breakout, 45° | |
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Black | Flame Retardant, Fluid Resistant, Fuel Resistant, Heat Resistant, Lip, Potting (Injection) Port | 0.752" (19.10mm) | 1.030" (26.16mm) | 0.800" (20.32mm) | Fluoroelastomer (FKM), Flexible, Irradiated | 32 | 0.102" (2.59mm) | 0.217" (5.51mm) | 1.770" (44.96mm) | 2.921" (74.19mm) | Boot | |
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Black | Flame Retardant, Fluid Resistant, Fuel Resistant, Heat Resistant, Lip, Potting (Injection) Port | 0.752" (19.10mm) | 1.030" (26.16mm) | 0.800" (20.32mm) | Fluoroelastomer (FKM), Flexible, Irradiated | 32 | 0.102" (2.59mm) | 0.217" (5.51mm) | 1.770" (44.96mm) | 2.921" (74.19mm) | Boot | |
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- | - | 0.450" (11.43mm) | 1.350" (34.29mm) | 2.480" (62.99mm) | Polyolefin (PO), Flexible | - | 0.450" (11.43mm), 0.200" (5.08mm) | 0.900" (22.86mm), 0.500" (12.70mm) | 2.480" (62.99mm) | - | Boot, Transition - Breakout, 2:1 (Y) | |
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Black | Adhesive Coating | 1.060" (26.92mm) | 2.189" (55.60mm) | 3.280" (83.31mm) | Polyolefin (PO), Flexible | 48 | 0.272" (6.91mm) | 0.520" (13.21mm) | 2.831" (71.91mm) | 7.280" (184.91mm) | Boot, Transition - Side Breakout, 45° | |
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- | - | 0.602" (15.29mm) | 1.197" (30.40mm) | 1.618" (41.10mm) | Elastomer | - | 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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- | - | - | - | - | - | - | - | - | - | - | Boot | |
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Black | Flame Retardant, Fluid Resistant, Fuel Resistant, Heat Resistant, Lip, Potting (Injection) Port | 0.512" (13.00mm) | 0.760" (19.30mm) | 0.618" (15.70mm) | Fluoroelastomer (FKM), Flexible, Irradiated | 21 | 0.083" (2.11mm) | 0.177" (4.50mm) | 1.480" (37.59mm) | 2.370" (60.20mm) | Boot | |
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Black | Flame Retardant, Fluid Resistant, Fuel Resistant, Heat Resistant, Lip | 0.512" (13.00mm) | 0.760" (19.30mm) | 0.461" (11.71mm) | Fluoroelastomer (FKM), Flexible, Irradiated | 21 | 0.083" (2.11mm) | 0.177" (4.50mm) | 0.465" (11.81mm) | 1.600" (40.64mm) | Boot | |
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- | - | 0.450" (11.43mm) | 1.350" (34.29mm) | 2.370" (60.20mm) | Elastomer, Fluid Resistant | 12 | 0.450" (11.43mm), 0.200" (5.08mm) | 0.900" (22.86mm), 0.500" (12.70mm) | 2.370" (60.20mm) | - | Boot, Transition - Breakout, 2:1 (T) | |
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- | - | 0.512" (13.00mm) | 1.496" (38.00mm) | 1.800" (45.72mm) | - | - | 0.160" (4.06mm) | 0.650" (16.51mm) | 2.200" (55.88mm) | - | Boot, Transition - Breakout, 3:1 | |
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Black | Flame Retardant, Fluid Resistant, Fuel Resistant, Heat Resistant, Lip | 0.512" (13.00mm) | 0.760" (19.30mm) | 0.642" (16.31mm) | Fluoroelastomer (FKM), Flexible, Irradiated | 21 | 0.083" (2.11mm) | 0.177" (4.50mm) | 0.858" (21.79mm) | 1.752" (44.50mm) | Boot - 90° | |
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Black | Adhesive Coating, Lip | 1.382" (35.10mm) | 2.362" (59.99mm) | 2.050" (52.07mm) | Polyolefin (PO), Semi-Flexible, Halogen Free | 74 | 0.618" (15.70mm) | 2.362" (59.99mm) | 1.540" (39.12mm) | 4.330" (109.98mm) | Boot | |
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Black | Flame Retardant, Fluid Resistant, Fuel Resistant, Heat Resistant, Lip | 0.591" (15.00mm) | 1.012" (25.70mm) | 0.780" (19.81mm) | Fluoroelastomer (FKM), Flexible, Irradiated | 21 | 0.291" (7.39mm) | 0.630" (16.00mm) | 3.902" (99.11mm) | 4.880" (123.95mm) | Boot - 90° | |
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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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Black | - | 0.470" (11.94mm) | - | 1.780" (45.21mm) | Polyolefin (PO), Semi-Flexible | 13 | 0.160" (4.06mm) | 0.330" (8.38mm) | 0.600" (15.24mm) | 2.440" (61.98mm) | Feed Through | |
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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 | - | 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 | Adhesive Coating, Fluid Resistant | 1.020" (25.91mm) | 2.189" (55.60mm) | 3.350" (85.09mm) | Elastomer, 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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- | - | 0.559" (14.20mm) | 0.760" (19.30mm) | 0.382" (9.70mm) | Elastomer | 12 | 0.161" (4.09mm) | 0.319" (8.10mm) | 0.961" (24.41mm) | - | Boot - 45° | |
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Black | - | 1.110" (28.19mm) | 1.690" (42.93mm) | 1.140" (28.96mm) | Fluoroelastomer (FKM), Flexible | 23 | 0.390" (9.91mm) | 0.910" (23.11mm) | 2.640" (67.06mm) | - | Boot - 45° | |
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Black | - | 1.060" (26.92mm) | 2.189" (55.60mm) | 3.760" (95.50mm) | Polyolefin (PO), Flexible | 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 | Adhesive Coating, Fluid Resistant | 0.189" (4.80mm) | 0.394" (10.01mm) | 1.417" (35.99mm) | Elastomer, Semi-Rigid | 23 | 0.189" (4.80mm) | 0.394" (10.01mm) | 2.165" (54.99mm) | 3.661" (92.99mm) | Boot, Transition - Breakout, 3:1 |
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