>> Search results for: B402977 NSN Search Results National Stock Number (NSN) Description 2840-00-161-7450, 2840001617450 Cancelled -> Replaced by 2840004528590 2840-00-452-8590 , 2840004528590 GUARD CHAIN 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