National Stock Number
6620-00-557-7008
National Stock Number (NSN) 6620-00-557-7008, or NIIN 005577008, (indicator,ratio,engine pressure) was assigned February 27, 1981 in the Federal Logistics Information System (FLIS). NIIN 005577008 was cancelled on December 16, 2017, with a cancelled status of "Item is Cancelled - Inactive." There is no known replacement specified for this stock number. This NSN does not replace any other NSNs.
There are no manufacturer part numbers associated to this NSN.
This part number has not been procured by the US Government in over 5 years.
This NSN is assigned to Item Name Code (INC) 32992. [AN INSTRUMENT DESIGNED TO REFLECT ONE OF THE TESTING PARAMETERS FOR CONDUCTING ENGINE PERFORMANCE AND FUNCTIONAL TESTING IN AN OPERATING ENGINE SYSTEM. ITS DIAL IS GRADUATED IN UNITS OF PRESSURE RATIO, AND IS USED TO INDICATE THE PERCENT OF DIFFERENTIAL PRESSURE RATIO OF EXHAUST GAS PRESSURE TO INTAKE (ENGINE INLET) PRESSURE FOR GAS TURBINE OR JET PROPULSION ENGINES.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 6620005577008 does not contain precious metals.
This information was last updated on Aug 01, 2025.