A fixed block in the mechanism of a breech loading gun into which the breechblock fits to seal the breech opening during firing.
Classification: Part and accessories of articles of headings 9301 to 9304, nesoi
NSN 5835-01-364-6830
NSN 5985-00-644-7996
NSN 5910-01-018-2723
NSN 5925-01-281-7511
NSN 5999-01-625-1177
NSN 5975-01-496-4233
NSN 6320-01-439-5264
NSN 5915-00-391-5735
NSN 6220-01-604-8283
NSN 5999-01-158-4109
NSN 6110-00-509-9704
NSN 5990-01-542-4212