5961-00-988-8557 (2N1197)
NSN 5961-00-988-8557 (NIIN 00-988-8557) is a transistor in Federal Supply Class 5961, Semiconductor Devices And Associated Hardware — an active semiconductor device with three or more electrodes. Manufacturer part number 2N1197 (Military Specifications, CAGE 81349); also referenced as 4192800-47 (Raytheon Company); MIL-PRF-19500, MILS19500 (Military Specifications).
Key specs: hermetically sealed case; full characteristics table below. NIIN assigned January 1963; DEMIL Q (Commerce Control List); ESD/EMI-sensitive; export Schedule B 8541.50.0080. Supersedes 5961-00-912-4085 (1969); related NSN 5961-00-058-1655.