18988JP Hex Nut Part Number: 18988JP OEM Part Number(s): 18988 ATA Chapter: 32 Click on photo to enlarge. Eligibility / Aircraft SA-366G1 Assemblies 18785-SERIES, 18786-SERIES Log in to view pricing, ordering, and additional information. Associated Parts - NHA: 18785-SERIES Part Number OEM PN Description Solution Type In Stock 24079-000JP-00 24079-000-00 Spacer PMA 24079-000JP-00R3 24079-000-00R3 Spacer, Oversize PMA 24079-000JP-00Spacer 24079-000JP-00R3Spacer, Oversize Associated Parts - NHA: 18786-SERIES Part Number OEM PN Description Solution Type In Stock 24079-000JP-00 24079-000-00 Spacer PMA 24079-000JP-00R3 24079-000-00R3 Spacer, Oversize PMA 24079-000JP-00Spacer 24079-000JP-00R3Spacer, Oversize Submit a PMA Development Request