National Stock Number (NSN) 5999-00-471-2563, or NIIN 004712563, (delay line) was assigned August 26, 1970 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 2 manufacturer part numbers 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 07, 2013. There have been 9 contracts issued for this part number, with 7 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 4 different suppliers. The last contract numbers awarded were: SPM7MC13M6764, SPM7MC13M6244, SPM7M913M2101, SPM7M913M0227, SPM7M913M0223. The total value of the awarded contracts has been US$ 14,061.98.
There has been a small amount of 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 May 06, 2020, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) Acquisition of this part is restricted to source(s) specified on "Source Control", "Altered Item" or "Selected Item" drawings/documents. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 06373. [AN ITEM WHICH PROVIDES A PREDETERMINED DELAY TO AN ELECTRICAL PULSE, WHILE MAINTAINING SUBSTANTIALLY THE SAME WAVEFORM. THE DELAY IS OBTAINED BY MEANS OF A REAL OR ARTIFICIAL TRANSMISSION LINE OR EQUIVALENT DEVICE. THE EQUIVALENT DEVICE MAY BE ACOUSTIC, DISTRIBUTIVE, LUMPED CONSTANT, MAGNETIC SOLID STATE, OR SURFACE ACOUSTICAL WAVE TYPE. SEE ALSO ATTENUATOR, (AS MODIFIED); TRANSFORMER, (AS MODIFIED); AND OSCILLATOR, PULSE DELAY.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. 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 5999004712563 contains an unknown precious metal.
This NSN is associated to Schedule B 8543909000: electrical machines and apparatus parts, nesoi. 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.