National Stock Number
5996-00-899-6989
National Stock Number (NSN) 5996-00-899-6989, or NIIN 008996989, (amplifier,parametric) was assigned February 3, 1967 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There is only one manufacturer part number associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by one supplier. Today, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, only one supplier is deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over 5 years.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Apr 02, 2006, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. The design of this part is unstable. Engineering, manufacturing, or performance characteristics indicate that the required design objectives have not been achieved. Major changes are contemplated because the part has a low process yield or has demonstrated marginal performance during tests or service use. These changes will render the present part obsolete and unusable in its present configuration. Limited acquisition from the present source is anticipated pending configuration changes. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 60050. [AN ITEM, THE OUTPUT CHARACTERISTICS OF WHICH ARE UNIFORMLY RELATED TO THE INPUT SIGNAL, BUT OF GREATER AMPLITUDE WITH RESPECT TO CURRENT AND/OR VOLTAGE. IT CONSISTS BASICALLY OF AN INPUT SIGNAL INDUCTANCE, AN OUTPUT SIGNAL INDUCTANCE, AND A SEMICONDUCTOR DIODE DEVICE. AN EXTERNAL SOURCE OF RADIO FREQUENCY POWER, COMMONLY REFERRED TO AS THE "PUMP FREQUENCY" IS INJECTED ACROSS THE DIODE AT A FREQUENCY FUNDAMENTALLY OR HARMONICALLY RELATED TO THE INPUT SIGNAL FREQUENCY. THE DIODE, OPERATING AS A TYPE OF FREQUENCY-CONTROLLED CAPACITOR, INCREASES THE AMPLITUDE OF THE INPUT SIGNAL BY AN APPRECIABLE VALUE, AT AN ALMOST ZERO NOISE LEVEL. THE CHARACTERISTIC OF EXTREMELY LOW NOISE LEVEL AT VERY HIGH OPERATING FREQUENCIES, MAKES THE AMPLIFIER SUITABLE FOR USE WITH RADAR RECEIVERS, MISSILE DETECTION AND TRACKING EQUIPMENTS, RADIO ASTRONOMY RESEARCH, AND THE LIKE. EXCLUDES:AMPLIFIER, RADIO FREQUENCY.]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 5996008996989 does not contain precious metals.
This NSN is associated to Schedule B 8543709610: amplifiers. The Schedule B End Use is listed as electric apparatus. NAICS classification category 335999: all other miscellaneous electrical equipment and component manufacturing.
This information was last updated on Aug 01, 2025.