National Stock Number (NSN) 6685-01-369-6549, or NIIN 013696549, (indicator,temperature-humidity,e) was assigned December 31, 1992 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 4 manufacturer part numbers associated with this NSN. 3 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 5 suppliers. Today, 5 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 3 suppliers are deemed design controlled or valid supply parts. ISO Group has several sources of supply for this NSN.
This part number has been procured by the US Government within the last year, but shows no recent (last 90 days) procurement activity. There have been 22 contracts issued for this part number, with 23 awards given. There is moderate competition for this NSN. The US Government has awarded contracts to 10 different suppliers. The last contract numbers awarded were: SPE4A625F8002, SPE4A624F208H, SPE4A623F129F, SPE4A622PR218, SPE4A621F330C. The total value of the awarded contracts has been US$ 509,540.96.
This NSN is fairly common among different weapons systems, belonging to 15 different platforms.
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 Sep 21, 2019, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) This part requires engineering source approval by the design control activity in order to maintain the quality of the part. An alternate source must qualify in accordance with the design control activity's procedures, as approved by the cognizant Government engineering activity. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 60647. [AN INDICATOR WHICH INDICATES TEMPERATURE AND HUMIDITY BY MEANS OF MEASURING THE ELECTRICAL RESISTANCE OF REMOTELY LOCATED TEMPERATURE AND HUMIDITY ELEMENTS. THE RESISTANCE OF THE ELEMENTS VARIES WITH CHANGES IN TEMPERATURE AND HUMIDITY RESPECTIVELY. DOES NOT INCLUDE RESISTANCE HUMIDITY OR TEMPERATURE ELEMENTS.]. 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 6685013696549 does not contain precious metals.
This NSN is associated to Schedule B 9025900000: parts and accessories for hydrometers and similar floating instruments, therometers, pyrometers, barometers, hygrometers and psychrometers. The Schedule B End Use is listed as medicinal equipment. NAICS classification category 334519: other measuring and controlling device manufacturing.
This information was last updated on Jul 01, 2025.