National Stock Number
5945-00-477-8181
National Stock Number (NSN) 5945-00-477-8181, or NIIN 004778181, (relay,reed) was assigned June 12, 1974 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 5945011347912.
There are 6 manufacturer part numbers associated with this NSN. 5 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 8 suppliers. Today, 4 suppliers are listed as Active suppliers 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 unique to one weapons system.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Nov 02, 2005, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The Government physically does not have in its possession sufficient, accurate, or legible data to purchase this part from other than current source(s). (NOTE: This code is applicable only to parts under immediate buy requirements and only as long as the deficiency is under review for resolution and appropriate recoding.) Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 30544. [A RELAY CONSISTING OF AN ENERGIZING COIL AND A METALLIC REED SWITCH MECHANISM. THE REEDS SERVE AS BOTH CORE AND CONTACTS, WHICH ARE NOT HINGED OR PIVOTED AND WHICH MOVE BY FLEXURE WHEN ACTED UPON BY A MAGNETIC FIELD INDUCED BY ENERGIZATION OF THE COIL. IT MAY ALSO INCLUDE A BIASING MAGNET. THE BIASING MAGNET, EITHER AIDS OR OPPOSES THE MOVEMENT OF THE REEDS AND THE OPENING OR CLOSING OF THE CONTACTS. FOR ITEMS IN WHICH ACTUATION IS DEPENDENT ON THE RESONANT FREQUENCY OF THE REEDS SEE RELAY, RESONANT REED. EXCLUDES:RELAY, ELECTROMAGNETIC.]. 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 5945004778181 does not contain precious metals.
This NSN is associated to Schedule B 8536410020: relays, electromechanical, with contacts rated less than 10 a, for a voltage not exceeding 60 v. The Schedule B End Use is listed as electric apparatus. NAICS classification category 335314: relay and industrial control manufacturing.
This information was last updated on Jul 01, 2025.