Mk13, mod o, screw, sight base
No other part numbers with same form, fit, and function found.
An item specifically designed as a foundation or part upon which associated parts, such as cross blade, sight leaf, or aperture, for a gunsight are mounted. it is attached to the receiver or gun barrel and essential to a carbine, machine gun, pistol, rifle or the like when aiming.
Classification: Part and accessories of articles of headings 9301 to 9304, nesoi
NSN 5925-01-407-2542
NSN 6105-01-604-3435
NSN 7035-01-364-8454
NSN 6220-01-472-2949
NSN 5998-00-100-0162
NSN 5930-01-158-4865
NSN 5996-01-561-2413
NSN 6645-01-562-1351
NSN 4140-01-487-4394
NSN 6320-00-500-4172
NSN 5910-01-229-0142
NSN 5996-01-455-4729