Mfr name for this item is "fuse spring"
A rectangular or irregular shaped device with one or more holes for attaching to a hook or the like. Constructed of such material that will fuse (melt) at a known temperature. It is used in conjunction with autoomatic closing devices for door, window, automatic appliances and the like. Excludes fuse, link, thermal.
NSN 5996-01-492-5408
NSN 5975-00-297-3940
NSN 5950-00-082-0286
NSN 6650-01-551-4124
NSN 5950-00-580-2925
NSN 5930-00-153-0230
NSN 5910-01-082-4452
NSN 6240-01-200-6864
NSN 6620-00-469-1179
NSN 5975-01-195-8078
NSN 5990-01-586-2475
NSN 5965-01-158-1522