>> Search results for: B56133 NSN Search Results National Stock Number (NSN) Description 6550-00-524-8545, 6550005248545 TEST KIT,BLOOD UREA NITROGEN DET 6550-01-189-3936 , 6550011893936 Cancelled -> Replaced by 6505011561822 5930-99-527-5599, 5930995275599 SWITCH UNIT,MODE CH 1 Related Inventory Search You can use this search box to continue searching. Search parameters can include any combination of characteristics, specifications, description, partial part numbers, NSN or other stocking number. Special characters are not needed and are automatically stripped before searching. Do you sell this part? Become part of our growing pool of certified suppliers. Send Information