5845-00-013-2105 (100-2797-016)
NSN 5845-00-013-2105 (NIIN 00-013-2105) is a sonobuoy in Federal Supply Class 5845, Underwater Sound Equipment — a water buoyant item designed to intercept underwater sound waves for the specific purpose of retransmitting the received sounds in space via electromagnetic. Manufacturer part number 100-2797-016 (Sparton Corporation, CAGE 82268); also referenced as ANSSQ41 (Joint Electronics Type Designation); 708965-16801, 709123-16801, 709296-16801 (Raytheon Company); 100-4441-016 (Sparton Corporation).
Key specs: 7 V nominal first operating power rqmt DC voltage; 173.50 MHz nominal electromagnetic wave transmitting frequency; full characteristics table below. NIIN assigned January 1961; export Schedule B 9014.80.6000.