National Stock Number
6610-99-251-2702
National Stock Number (NSN) 6610-99-251-2702, or NIIN 992512702, (altimeter,servo controlled,automatic pressure stan) has an unknown assigned date. NIIN 992512702 was cancelled on January 2, 2013, with a cancelled status of "Item is Cancelled WITHOUT Replacement." There is no known replacement specified for this stock number. 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, there are no suppliers that are deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over 5 years.
This NSN is assigned to Item Name Code (INC) 60046. [A SERVO CONTROLLED INSTRUMENT WHICH MEASURES ALTITUDE BY DIAL INDICATION TRANSMITTED BY SYNCHRO FROM A REMOTE SOURCE. THE TRANSMITTED ALTITUDE MAY BE PRESSURE ALTITUDE AS DERIVED FROM AN AIR DATA COMPUTER OR OTHER SUITABLE TRANSMITTER. IT EMPLOYS A ZERO SETTING SYSTEM TO PERMIT THE ALTIMETER TO BE SET AT ZERO ALTITUDE AT AN EXISTING GROUND LEVEL. THE ITEM INCORPORATES AN AUTOMATIC STANDBY FEATURE WHICH WILL REVERT TO DIRECT STATIC PRESSURE ACTUATION, INDICATED BY A WARNING SIGNAL IN THE EVENT OF ELECTRICAL MALFUNCTIONS OR AT THE PILOT'S OPTION. THE ITEM IS DESIGNED FOR USE IN AIRCRAFT WHERE ACCURACY IS REQUIRED TO MEET ALTITUDE SEPARATION REQUIREMENTS. SEE ALSO INFORMATION POSITIONING SET.].
This information was last updated on Aug 18, 2025.