A nut having wings designed for manual turning without driver or wrench.
NSN 6240-01-592-3176
NSN 5895-01-530-5580
NSN 5915-01-385-1044
NSN 5965-01-068-2714
NSN 5895-01-064-8528
NSN 5920-00-917-6824
NSN 6645-01-086-7668
NSN 5905-01-350-3275
NSN 5950-00-203-1291
NSN 6150-00-050-0910
NSN 6220-01-522-6935
NSN 5910-01-223-3421