A cylindrically-shaped headed item, having circular or longitudinal groove(s).
NSN 5905-00-817-7232
NSN 5935-01-213-9112
NSN 2925-01-324-3533
NSN 5960-01-031-0347
NSN 5999-00-067-6168
NSN 4140-00-318-7427
NSN 2925-01-282-3206
NSN 5945-00-642-5755
NSN 6150-01-282-0610
NSN 5915-01-628-6422
NSN 5960-00-264-5233
NSN 5930-01-520-4572