National Stock Number
6625-01-643-7254
National Stock Number (NSN) 6625-01-643-7254, or NIIN 016437254, (generator,digital clock pulse) was assigned April 10, 2015 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 11, 2015, this NSN's acquisition method was noted as: Not established. Not established.
This NSN is assigned to Item Name Code (INC) 60543. [AN ITEM CONSISTING OF AN OSCILLATOR, AMPLIFIERS, WAVEFORM CLIPPERS, FREQUENCY DIVIDERS, AND THE LIKE. IT PROVIDES A SERIES OF PULSES, OR PULSE REFERENCE FRAMES OF INFORMATION RELATING TO PRECISE TIME DATA, THAT IS APPLIED TO OTHER COMPONENTS FOR PURPOSES OF SYNCHRONIZATION AND CONTROL. IT MAY DERIVE SIGNALS FROM INTERNAL CIRCUITRY, AUXILIARY EXTERNAL CIRCUITRY, OR FROM SOURCES SUCH AS THE NATIONAL BUREAU OF STANDARDS RADIO STATION WWV. THE ITEM MAY INCLUDE AN INTEGRAL REGISTER FOR CIRCUIT MONITORING AND ADJUSTMENT PURPOSES ONLY. FOR ITEMS THAT ARE NOT COMPARED TO A STANDARD TIME SIGNAL SOURCE, BUT ARE USED AS TIME BASES FOR SYSTEM TRIGGERS, SYNCHRONIZING SOURCES AND THE LIKE, SEE GENERATOR,REFERENCE SIGNAL; GENERATOR,ELECTRONIC COMMAND SIGNALS AND GENERATOR,PULSE.]. The item is a non-aviation Critical Safety Item (CSI) whose failure will result in serious damage to equipment or serious injury or death to personnel. There is no information in the HMIRS; however, the NSN is in an FSC in Table II of Federal Standard 313 and an MSDS may be required by the user. The requirement for an MSDS is dependent on a hazard determination of the supplier or the intended end use of the product. NSN 6625016437254 does not contain precious metals.
This NSN is associated to Schedule B 9030908030: parts and accessories of articles of schedule b subheading 9030.39. The Schedule B End Use is listed as measuring, testing, control instruments. NAICS classification category 334515: instrument manufacturing for measuring and testing electricity and electrical signals.
This information was last updated on Jul 01, 2025.