National Item Identification Number
National Stock Number
Federal Supply Class
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Referenced on: http://aviationandaccessories.tpub.com//TM-55-4920-414-13P/css/TM-55-4920-414-13P_97.htm
A fluid line fitting having a pipe, tube or hose connection or a through hole to accommodate a BOLT, FLUID PASSAGE on one end. The other end must have an external or internal thread for connecting a mating part to form a self-sealing coupling assembly. The fitting has either a self-sealing feature for the purpose of automatically shutting off the flow of fluid when disconnected from its mating half, or, if it has no self-sealing feature, is specifically designed to mate with a fitting with a self-sealing feature. For self-sealing fittings with a quick disconnect end, see COUPLING HALF, QUICK DISCONNECT. For fluid line fittings without a self-sealing feature, see COUPLING (as modified).
Commercial and Government Entity Code (Supplier Data)
Reference Numbers (Part Numbers)