2590-00-314-0517 (2A10510)
NSN 2590-00-314-0517 (NIIN 00-314-0517) is a bevel gear winch nut in Federal Supply Class 2590, Miscellaneous Vehicular Components. Manufacturer part number 2A10510 (Paccar Government Group Co Yarrow, CAGE 45320); also referenced as 8720627 (U S Army Tank Automotive Command).
NIIN assigned January 1963; DEMIL B (USML, demil required).