National Stock Number
5365-00-173-3181
National Stock Number (NSN) 5365-00-173-3181, or NIIN 001733181, (spacer,plate) was assigned November 26, 1971 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.
This NSN is unique to one weapons system.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Aug 18, 2007, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. The data needed to produce this item from additional sources is not physically available. Valid AMCs: 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 26979. [A FLAT METAL OR PLASTIC ITEM OF VARIOUS PERIPHERAL SHAPES HAVING A SOLID (NOT LAMINATED) CROSS-SECTION. IT IS DESIGNED TO MAINTAIN A PREDETERMINED DISTANCE BETWEEN TWO SURFACES. FOR ROUND ITEMS WITHOUT A HOLE HAVING A SOLID RECTANGULAR CROSS-SECTION USE DISK, SOLID, PLAIN. FOR ROUND OR HEXAGONAL ITEMS WITH ONLY ONE HOLE CENTRALLY LOCATED AND WITH THE LENGTH (THICKNESS) EXCEEDING 25 PERCENT OF THE OUTSIDE DIAMETER OR DISTANCE ACROSS PERIPHERAL FLATS, SEE SPACER, SLEEVE. THE THICKNESS BETWEEN THE TWO PARALLEL BEARING SURFACES MUST BE 0.006 INCH, (0.152 MM) OR MORE FOR ITEMS LESS THAN 1/4 INCH (6.35 MM) ACROSS THE PERIPHERAL DIAMETER, OR SMALLEST OVERALL OUTSIDE DIMENSION, OR MUST BE 0.016 INCH (0.406 MM) OR MORE FOR ITEMS 1/4 INCH (6.35 MM) OR GREATER ACROSS THE PERIPHERAL DIAMETER OR SMALLEST OVERALL OUTSIDE DIMENSION. FOR ITEMS WITH A THICKNESS LESS THAN THOSE INDICATED ABOVE, SEE SHIM. FOR ITEMS WITH ONE HOLE CENTRALLY LOCATED CONFORMING TO THE ABOVE DIMENSIONAL CRITERIA USE WASHER, FLAT OR SPACER, RING AS APPLICABLE. WHEN THICKNESS AND/OR OUTSIDE_DIAMETER_OR_SMALLEST_OVERALL_OUTSIDE_DIMENSION_IS_DESIGNATED_AS_A_TOLERANCE/DIMENSION_THE_MAXIMUM_DIMENSION_WILL_BE_USED_TO_DETERMINE_COMPLIANCE._EXCLUDES:GASKET;_INSULATOR_(AS_MODIFIED)_AND_MOUNTING_PAD,_ELECTRICAL-ELECTRONIC_COMPONENT.____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________]. 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 5365001733181 does not contain precious metals.
This information was last updated on Jul 01, 2025.