Bulk 2:1 Polyolefin Heat Shrink Tubing Rolls

Bulk 2:1 Polyolefin Heat Shrink Tubing Spools

BuyHeatShrink® 2:1 Polyolefin Heat Shrink Tubing is our most popular and versatile electrical insulation solution. Designed for cable protection, strain relief, and identification, this tubing shrinks to half its original diameter when heated with a heat gun or oven. Ideal for industrial, electrical, automotive, and hobby applications.

Features & Specifications

  • 2:1 Shrink Ratio: Shrinks to 50% of its original diameter
  • Meets Standards: SAE AMS-DTL-23053/5 (formerly MIL-I-23053/5, MIL-DTL-23053/5), Classes 1, 2 (Clear), and 3
  • Certifications: UL 224 VW-1 (except Clear) and CSA OFT recognized; 600V/mil dielectric rating
  • Operating Temperatures: -55°C to +135°C
  • Shrink Temperature: 120°C
  • Continuous Use Temperature: 135°C maximum
  • Dielectric Strength: 600 V/mil (e.g., 1/4" tubing = approx. 15.6KV)
  • Available Colors: Black, Clear
  • Cross References: Sumitomo B2, Raychem RNF-100, Alpha FIT-221, 3M FP301, Canusa CPX-100, LG GSHS-1635F
  • Compliance: RoHS and RoHS2 compliant
Bulk Pricing (per spool) - Click to Expand
Bulk pricing applies across all HS2BU colors. Prices shown are per spool.
Diameter Length Single 10 25 50+
3/64" 500 FT $56.22 $45 $42 $37
1/16" 500 FT $56.30 $45.5 $42.5 $37
3/32" 500 FT $56.67 $46 $42.5 $37
1/8" 500 FT $63.45 $51 $47.5 $42
3/16" 250 FT $45 $36 $33.75 $29.25
1/4" 250 FT $48.11 $39 $36 $31.5
5/16" 250 FT $52 $42 $39 $35
3/8" 250 FT $67 $53.6 $50.25 $43.55
1/2" 250 FT $85 $68 $63.75 $55–59.5
1" 200 FT $125 $100 $93.75 $87.5
1.25" 100 FT $80 $64 $60 $56
1.5" 100 FT $115 $97.75 $92 $86.25
2" 100 FT $165 $140.25 $132 $123.75
  • Save ~20% when buying 10 spools
  • Save ~25% at 25 spools
  • Save up to 35% per spool at 50–100 spools
  • Pricing applies to select colors
  • Ideal for contractors, installers, OEMs, and resellers
Diameter Mil Specification #Manufacturer Part #ID Before Shrink ID After ShrinkWall After Shrink Flat Width Buy
3/64" AMS-DTL- 23053/5-101HS2BU-00470.046"0.023"0.018"1/16"
500 FT/SPOOL $56.22
1/16" AMS-DTL- 23053/5-102HS2BU-00630.063"0.031"0.018"1/8"
500 FT/SPOOL $56.30
3/32" AMS-DTL- 23053/5-103HS2BU-00940.093"0.046"0.019"1/8"
500 FT/SPOOL $56.67
1/8" AMS-DTL- 23053/5-104HS2BU-01250.125"0.062"0.019"3/16"
500 FT/SPOOL $63.45
3/16" AMS-DTL- 23053/5-105HS2BU-01880.187"0.093"0.019"5/16"
250 FT/SPOOL $45.00
1/4" AMS-DTL- 23053/5-106HS2BU-0250.25"0.125"0.026"3/8"
250 FT/SPOOL $48.11
5/16" AMS-DTL- 23053/5-5/16HS2BU-03130.322"0.157"0.020"1/2"
250 FT/SPOOL $52.00
3/8" AMS-DTL- 23053/5-107HS2BU-03750.375"0.187"0.026"9/16"
250 FT/SPOOL $67.00
1/2" AMS-DTL- 23053/5-108HS2BU-0500.5"0.25"0.029"13/16"
250 FT/SPOOL $68.00
1" AMS-DTL- 23053/5-110HS2BU-1001"0.5"0.039"1-9/16"
200 FT/SPOOL $125.00
1-1/4" N/AHS2BU-1251.26"0.63"0.039"1-15/16"
100 FT/SPOOL $80.00
1-1/2" AMS-DTL- 23053/5-111HS2BU-1501.5"0.75"0.039"2-3/8"
100 FT/SPOOL $115.00
2" AMS-DTL- 23053/5-112HS2BU-2002"1"0.045"3-1/8"
100 FT/SPOOL $165.00