National Stock Number
5996-01-177-1178
National Stock Number (NSN) 5996-01-177-1178, or NIIN 011771178, (amplifier,audio frequency) was assigned April 19, 1984 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, with the most recent procurement date of May 09, 2012. There has been one contract issued for this part number, with one award given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPM7M112V6651. The total value of the awarded contracts has been US$ 3,438.12.
This NSN is somewhat common among different platforms, belonging to 3 different weapons systems.
There has been very little demand for this national stock number. The demand for this NSN originated from less than 5 countries. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Jan 08, 2014, this NSN's acquisition method was noted as: Acquire only from the prime contractor although the engineering data identifies the Commercial and Government Entity Code (CAGE) and part number of a source other than the prime contractor. The annual buy value of this part falls below the screening threshold of $10,000 but it has been screened for known source(s). (NOTE: This code shall not be used when screening parts entering the inventory. It shall not be assigned in preference to or supersede any other AMSC.) Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 00511. [AN ELECTRONIC DEVICE WHOSE AUDIO FREQUENCY INPUT SIGNALS CONTROL POWER FROM A SOURCE INDEPENDANT OF THE INPUT SIGNAL AND DELIVERS AUDIO FREQUENCY OUTPUT SIGNALS OF GREATER AMPLITUDE WITH RESPECT TO CURRENT AND/OR VOLTAGE. THE OUTPUT SIGNALS CHARACTERISTICS ARE UNIFORMLY RELATED TO THE INPUT SIGNALS. IT OPERATES AT FREQUENCIES OF 20 KILOHERTZS AND BELOW. IT MAY OR MAY NOT HAVE SIGNAL SWITCHING CAPABILITIES.]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 5996011771178 does not contain precious metals.
This NSN is associated to Schedule B 8518402000: audio frequency electric amplifiers, nesoi. The Schedule B End Use is listed as telecommunications equipment. NAICS classification category 334310: audio and video equipment manufacturing.
This information was last updated on Aug 01, 2025.