640 S190 Coil Balance Spring

Product Code: S190-640

640 S190 Coil Balance Spring
Quantity Price
1-9 $9.74
10-24 $9.05
25-49 $8.42
50-99 $7.83
100+ $7.29
Product Description
This is a Series 190 stainless steel spring for tilt-in windows. It moderates the operation of your window sash using a specifically calibrated coil spring that allows the window to stay open when raised and remain shut when closed.
  • Individually, this coil balance can hold 6 pounds. This is added together with the other coils to support the whole weight of the sash.
  • This coil is stamped with number 6 or 640.
  • Measures 1/2" thick.
  • Designed to work with the 15-180, Pivot Shoe (sold separately).
  • This coil balance spring is sold individually, not in sets.
  • Can work for either the left or right side of the window interchangeably.
  • Coil balances are also known as constant force window balances.
Good Idea!
Balances are sold individually, however, it is a good idea to replace both window balances at the same time. Pairing a new balance with an old one would cause the new balance to wear out faster.
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Customer Questions & Answers
Discussion # Of Replies Last Post Date
Broken window coil balanceThis discussion includes image(s). 2 Oct 9, 2022
Coil Balance ReplacementThis discussion includes image(s). 2 Oct 5, 2022
WIndows do not stay openThis discussion includes image(s). 4 Aug 12, 2022
Balances needed for two different windows This discussion includes image(s). 3 Jul 13, 2022
vinyl window ballanceThis discussion includes image(s). 11 May 20, 2022
window balance - possibly a constant force balance system partThis discussion includes image(s). 2 Feb 21, 2022
window balancesThis discussion includes image(s). 2 Jun 25, 2021
Number 640 marked on the coil springThis discussion includes image(s). 3 Jun 16, 2021
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