Specific material name is "delrin; " diameter unit of measure is for o.D.
No other part numbers with same form, fit, and function found.
A cap of various shapes, sizes and materials, specially designed to fit over a nut or bolt head to provide protection from corrison, impairments, sticking paint, motar and the like.
NSN 6220-00-246-7245
NSN 5835-01-485-0210
NSN 6145-00-088-5884
NSN 5965-01-347-7328
NSN 5935-01-543-9914
NSN 6645-01-500-0827
NSN 5975-01-141-5942
NSN 5920-00-926-7560
NSN 5930-00-707-8907
NSN 6320-00-809-5744
NSN 5915-01-375-3373
NSN 5915-00-474-8255