Maker

Item #

Size

Description

In Stock

Price

Buy

Rockford

JA550

18/S

18s Mainspring Factory # 450/1235
width in mm 2.9, strength in mm 0.22
length inches 22, end T

Yes

$39.00

Rockford

JA552

12/S

12s Mainspring Factory # 932
width in mm 2, strength in mm 0.172
length inches 18-3/4, end T

Yes

$39.00