This manual was very clear and complete, the prices can't be beat, great to have older manuals available!
Text excerpt from page 2 (click to view)
S-A380
PARTS LIST
NOTES: Parts marked by "NSP" are generally unavailable because they are not in our Master Spare Parts List. The mark found on some component parts indicates the importance of the safety factor of the part. Therefore, when replacing, be sure to use parts of identical designation.