No other part numbers with same form, fit, and function found.
A square nut having a concave face and a concave or slotted top.
NSN 6145-01-470-3933
NSN 5925-01-029-3315
NSN 5945-00-089-9130
NSN 6135-01-562-3056
NSN 5915-01-376-2994
NSN 5895-01-539-1693
NSN 5975-01-067-9134
NSN 5895-01-065-1659
NSN 6685-01-135-4357
NSN 5950-00-226-9320
NSN 6145-00-589-1250
NSN 5960-01-567-1096