Part Number: 052-05519 (Stop spool)Part Number: 052-33904-549 (Stop spool)Part Number: 052-63252-1 (Stop spool)Part Number: 052-63252-2 (Stop spool)Part Number: 10-26049-02 (Stop spool)Part Number: 2A1476 (Stop spool)Part Number: HP1368112-1 (Stop spool)