4140 steel with parkerized matte finish, 0.685 inches high from top of base to inside bottom of ring, includes 1.0 inch ring inserts.
No other part numbers with same form, fit, and function found.
An item specifically designed to position and/or restrain the movement of one or more parts in their normal mounting position on a gun or associated equipment.
Classification: Part and accessories of articles of headings 9301 to 9304, nesoi
NSN 6620-01-349-4469
NSN 4140-01-447-0025
NSN 6685-01-294-9118
NSN 5998-01-487-8962
NSN 5960-00-246-4623
NSN 5975-00-141-8513
NSN 6645-00-222-2785
NSN 5905-00-161-4880
NSN 5935-01-502-6935
NSN 6110-01-462-1698
NSN 5945-01-542-9117
NSN 5950-01-390-5708