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 | - | 0.390" (9.91mm) | 0.940" (23.88mm) | 0.460" (11.68mm) | Polyolefin (PO), Flexible | 11 | 0.260" (6.60mm) | 0.680" (17.27mm) | 2.230" (56.64mm) | 3.000" (76.20mm) | Boot | |
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Black | - | 0.390" (9.91mm) | 0.941" (23.90mm) | 0.740" (18.80mm) | VPB, Flexible | 11 | 0.260" (6.60mm) | 0.681" (17.30mm) | 3.449" (87.60mm) | 4.142" (105.21mm) | Boot - 90° | |
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Black | - | 1.110" (28.19mm) | 1.681" (42.70mm) | 1.728" (43.89mm) | Polyolefin (PO), Flexible | 63 | 0.390" (9.91mm) | 1.681" (42.70mm) | 1.300" (33.02mm) | - | Boot - 90° | |
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- | - | 0.350" (8.89mm) | 0.697" (17.70mm) | 0.929" (23.60mm) | Polyolefin (PO), Semi-Rigid | 12 | 0.201" (5.11mm) | 0.398" (10.11mm) | 0.929" (23.60mm) | 1.870" (47.50mm) | Boot, Transition - Side Breakout, 90° | |
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Black | - | 0.700" (17.78mm) | 0.940" (23.88mm) | - | Polyolefin (PO), Semi-Rigid | 42 | 0.280" (7.11mm) | 0.610" (15.49mm) | 0.400" (10.16mm) | - | Boot - 90° | |
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Black | - | 1.110" (28.19mm) | 1.531" (38.89mm) | 0.961" (24.41mm) | EPB | 53 | 0.430" (10.92mm) | 1.240" (31.50mm) | 5.661" (143.79mm) | 7.291" (185.19mm) | Boot - 90° | |
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Black | - | 1.110" (28.19mm) | 1.530" (38.86mm) | 0.960" (24.38mm) | Polyolefin (PO), Flexible | 53 | 0.430" (10.92mm) | 1.240" (31.50mm) | 5.660" (143.76mm) | 7.290" (185.17mm) | Boot - 90° | |
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Black | - | 1.780" (45.21mm) | 1.780" (45.21mm) | 6.420" (163.07mm) | EPB, Flexible | 63 | 0.500" (12.70mm) | 1.510" (38.35mm) | 0.600" (15.24mm) | 8.000" (203.20mm) | Boot | |
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Black | Adhesive Coating, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resistant | 0.512" (13.00mm) | 0.760" (19.30mm) | 0.449" (11.40mm) | Polyolefin (PO), Semi-Rigid, Irradiated | 21 | 0.083" (2.11mm) | 0.250" (6.35mm) | 0.858" (21.79mm) | 1.752" (44.50mm) | Boot - 90° | |
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Black | - | 0.240" (6.10mm) | 0.510" (12.95mm) | 0.870" (22.10mm) | Elastomer, Fluid Resistant | 12 | 0.130" (3.30mm) | 0.350" (8.89mm) | 0.750" (19.05mm) | - | Boot, Transition - Breakout, 2:1 (Y) | |
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Black | - | 0.740" (18.80mm) | 0.870" (22.10mm) | 1.100" (27.94mm) | Polyolefin (PO), Flexible | 44 | 0.100" (2.54mm) | 0.440" (11.18mm) | 0.620" (15.75mm) | 2.100" (53.34mm) | Boot | |
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Black | - | 1.660" (42.16mm) | 1.660" (42.16mm) | - | Polyolefin (PO), Semi-Flexible, Halogen Free | 32 | 0.290" (7.37mm) | 0.550" (13.97mm) | - | - | Boot, Rectangular - Right Angle, 90° | |
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Black | Abrasion Resistant, Adhesive Coating, Chemical Resistant, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resist | 1.343" (34.11mm) | 1.717" (43.61mm) | 1.031" (26.19mm) | Elastomer, Semi-Rigid, Irradiated | 63 | 0.142" (3.61mm) | 0.500" (12.70mm) | 2.272" (57.71mm) | 3.921" (99.59mm) | Boot | |
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Black | Abrasion Resistant, Adhesive Coating, Chemical Resistant, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resist | 1.343" (34.11mm) | 1.730" (43.94mm) | 0.472" (11.99mm) | Elastomer, Semi-Rigid, Irradiated | 63 | 0.142" (3.61mm) | 0.430" (10.92mm) | 0.790" (20.07mm) | 2.440" (61.98mm) | Boot | |
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Black | - | 1.272" (32.31mm) | 1.780" (45.21mm) | 1.079" (27.41mm) | EPB | 63 | 0.500" (12.70mm) | 1.512" (38.40mm) | 6.661" (169.19mm) | 8.409" (213.59mm) | Boot - 90° | |
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Black | - | 0.880" (22.35mm) | 1.420" (36.07mm) | 1.630" (41.40mm) | Elastomer, Fluid Resistant | 53 | 0.330" (8.38mm) | 1.420" (36.07mm) | - | 3.150" (80.01mm) | Boot | |
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- | - | 0.906" (23.01mm) | 0.965" (24.51mm) | 1.299" (32.99mm) | Elastomer, Semi-Rigid | - | 0.315" (8.00mm) | 0.787" (19.99mm) | 0.709" (18.01mm) | 2.165" (54.99mm) | Boot - 90° | |
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Black | - | 2.270" (57.66mm) | 3.220" (81.79mm) | 3.750" (95.25mm) | Elastomer, Fluid Resistant | 96 | 1.000" (25.40mm) | 3.220" (81.79mm) | - | 7.000" (177.80mm) | Boot | |
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Black | Abrasion Resistant, Adhesive Coating, Chemical Resistant, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resist | 0.752" (19.10mm) | 1.030" (26.16mm) | 0.800" (20.32mm) | Elastomer, Semi-Rigid, Irradiated | 32 | 0.102" (2.59mm) | 0.500" (12.70mm) | 1.770" (44.96mm) | 2.921" (74.19mm) | Boot | |
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Black | - | 0.791" (20.10mm) | 2.370" (60.20mm) | 3.461" (87.91mm) | Polyolefin (PO), Flexible | 13 | 0.791" (20.10mm) | 1.579" (40.11mm) | 3.461" (87.91mm) | 6.921" (175.79mm) | Boot, Transition - Breakout, 2:1 (T) | |
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Black | - | 1.110" (28.19mm) | 1.530" (38.86mm) | 0.550" (13.97mm) | Polyolefin (PO), Flexible | 53 | 0.430" (10.92mm) | 1.240" (31.50mm) | 2.850" (72.39mm) | 4.250" (107.95mm) | Boot | |
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Black | Adhesive Coating, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resistant | 1.340" (34.04mm) | 1.720" (43.69mm) | 1.079" (27.41mm) | Polyolefin (PO), Semi-Rigid, Irradiated | 63 | 0.480" (12.19mm) | 1.720" (43.69mm) | 6.661" (169.19mm) | 8.409" (213.59mm) | Boot - 90° | |
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Black | Adhesive Coating, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resistant | 1.340" (34.04mm) | 1.720" (43.69mm) | 1.079" (27.41mm) | Polyolefin (PO), Semi-Rigid, Irradiated | 63 | 0.480" (12.19mm) | 1.720" (43.69mm) | 6.661" (169.19mm) | 8.409" (213.59mm) | Boot - 90° | |
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Black | Adhesive Coating | 0.449" (11.40mm) | 1.000" (25.40mm) | 2.480" (62.99mm) | Polyolefin (PO), Flexible | 32 | 0.295" (7.49mm) | 0.598" (15.19mm) | 2.480" (62.99mm) | - | Boot, Transition - Breakout, 2:1 (Y) | |
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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 | - | 0.740" (18.80mm) | 0.870" (22.10mm) | 1.100" (27.94mm) | Polyolefin (PO), Flexible | 46 | 0.310" (7.87mm) | 0.810" (20.57mm) | 0.550" (13.97mm) | 2.100" (53.34mm) | Boot | |
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- | Adhesive Coating, Fluid Resistant | 0.510" (12.95mm) | 1.339" (34.01mm) | 1.252" (31.80mm) | Elastomer | - | 0.319" (8.10mm) | 1.339" (34.01mm) | - | 5.000" (127.00mm) | Boot - 90° | |
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Black | - | 0.382" (9.70mm) | 0.760" (19.30mm) | 1.421" (36.09mm) | Polyolefin (PO), Semi-Rigid | 22 | 0.209" (5.31mm) | 0.370" (9.40mm) | 1.260" (32.00mm) | - | Boot, Transition - Breakout, 4:1 | |
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Black | - | 0.382" (9.70mm) | 0.760" (19.30mm) | 1.421" (36.09mm) | Polyolefin (PO), Flexible | 22 | 0.209" (5.31mm) | 0.370" (9.40mm) | 1.260" (32.00mm) | - | Boot, Transition - Breakout, 4:1 | |
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Black | - | 0.382" (9.70mm) | 0.760" (19.30mm) | 1.421" (36.09mm) | Polyolefin (PO), Flexible | 22 | 0.209" (5.31mm) | 0.370" (9.40mm) | 1.260" (32.00mm) | - | Boot, Transition - Breakout, 4:1 | |
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Black | - | 0.490" (12.45mm) | 1.060" (26.92mm) | 1.500" (38.10mm) | Elastomer, Fluid Resistant | 23 | 0.240" (6.10mm) | 0.520" (13.21mm) | 1.700" (43.18mm) | - | Boot, Transition - Breakout, 2:1 (Y) | |
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Black | Adhesive Coating, Lip | 0.882" (22.40mm) | 1.420" (36.07mm) | 0.870" (22.10mm) | Polyolefin (PO), Semi-Flexible, Halogen Free | 53 | 0.331" (8.41mm) | 1.420" (36.07mm) | 0.768" (19.51mm) | 2.362" (59.99mm) | Boot | |
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Black | - | 1.690" (42.93mm) | 2.469" (62.71mm) | 1.311" (33.30mm) | Polyolefin (PO), Flexible | 85 | 0.690" (17.53mm) | 1.858" (47.19mm) | 6.618" (168.10mm) | 8.949" (227.30mm) | Boot - 90° | |
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Black | - | 0.413" (10.49mm) | 0.917" (23.29mm) | 0.831" (21.11mm) | Fluoroelastomer (FKM), Flexible | 21 | 0.220" (5.59mm) | 0.488" (12.40mm) | - | 1.500" (38.10mm) | Boot | |
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Black | - | 0.410" (10.41mm) | 0.920" (23.37mm) | 0.830" (21.08mm) | Fluoroelastomer (FKM), Flexible | 21 | 0.220" (5.59mm) | 0.490" (12.45mm) | 0.400" (10.16mm) | 1.500" (38.10mm) | Boot | |
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Black | Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Potting (Injection) Port, Vent Port | 1.622" (41.20mm) | 1.970" (50.04mm) | 0.780" (19.81mm) | Polyolefin (PO), Flexible, Irradiated | 74 | 0.563" (14.30mm) | 1.970" (50.04mm) | - | 4.650" (118.11mm) | Boot | |
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Black | - | 1.220" (30.99mm) | 1.220" (30.99mm) | 4.440" (112.78mm) | NBCCS, Flexible | 32 | 0.350" (8.89mm) | 0.960" (24.38mm) | 0.480" (12.19mm) | 5.460" (138.68mm) | Boot | |
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Black | Adhesive Coating, Flame Retardant | 1.720" (43.69mm) | 2.598" (65.99mm) | 3.551" (90.20mm) | Polyolefin (PO), Flexible | 85 | 0.772" (19.61mm) | 2.598" (65.99mm) | 2.150" (54.61mm) | 6.350" (161.29mm) | Boot | |
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Black | - | 1.100" (27.94mm) | 2.120" (53.85mm) | - | EPB, Flexible | 53 | 0.880" (22.35mm) | 1.800" (45.72mm) | 1.120" (28.45mm) | 6.750" (171.45mm) | Boot | |
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Black | - | 0.560" (14.22mm) | 1.120" (28.45mm) | 1.090" (27.69mm) | Polyolefin (PO), Semi-Flexible, Halogen Free | 32 | 0.260" (6.60mm) | 0.580" (14.73mm) | - | 2.160" (54.86mm) | Boot | |
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Black | Adhesive Coating, Flame Retardant, Fluid Resistant, Heat Resistant, Lip, Strain Resistant | 0.902" (22.91mm) | 1.340" (34.04mm) | 0.701" (17.81mm) | Polyolefin (PO), Semi-Rigid, Irradiated | 42 | 0.382" (9.70mm) | 1.340" (34.04mm) | - | 4.000" (101.60mm) | Boot - 90° | |
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Black | Adhesive Coating, Eyelet and Clip, Fluid Resistant, Lip | 1.752" (44.50mm) | 2.600" (66.04mm) | 3.540" (89.92mm) | Elastomer, Semi-Rigid | 85 | 0.661" (16.79mm) | 2.600" (66.04mm) | 2.780" (70.61mm) | 6.690" (169.93mm) | Boot | |
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Black | Flame Retardant, Lip | 1.752" (44.50mm) | 2.600" (66.04mm) | 1.970" (50.04mm) | Polyolefin (PO), Flexible | 85 | 0.661" (16.79mm) | 2.600" (66.04mm) | 2.028" (51.51mm) | 5.120" (130.05mm) | Boot | |
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Black | Fluid Resistant, Lip | 1.752" (44.50mm) | 2.600" (66.04mm) | 1.970" (50.04mm) | Elastomer, Semi-Rigid | 85 | 0.661" (16.79mm) | 2.600" (66.04mm) | 2.760" (70.10mm) | 5.120" (130.05mm) | Boot | |
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Black | Fluid Resistant, Lip | 1.752" (44.50mm) | 2.600" (66.04mm) | 1.970" (50.04mm) | Elastomer, Semi-Rigid | 85 | 0.661" (16.79mm) | 2.600" (66.04mm) | 2.028" (51.51mm) | 5.120" (130.05mm) | Boot | |
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Black | Adhesive Coating, Flame Retardant, Lip | 1.382" (35.10mm) | 2.362" (59.99mm) | 2.830" (71.88mm) | Polyolefin (PO), Semi-Rigid | 74 | 0.618" (15.70mm) | 2.362" (59.99mm) | 1.970" (50.04mm) | 5.120" (130.05mm) | Boot | |
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Black | - | 0.700" (17.78mm) | 1.220" (30.99mm) | 1.390" (35.31mm) | Polyolefin (PO), Semi-Flexible, Halogen Free | 42 | 0.280" (7.11mm) | 0.630" (16.00mm) | - | 2.630" (66.80mm) | Boot |
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