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electrostatic discharge sensitive; dwg name:rapid message processor; nuclear hardened item
hardened
Serves as the gateway between the communications subsystem and the mission control and real time local area network. One interface will be used for transmission and reception of messages traffic between the misson control area network and the message distribution processor. The other interface will be used to relay the digitized voice between the real time local area nework and the commanders tactical terminal voice circuits, the voice order wire and back up voice wire to the aircraft pilots or the single channel ground and airborne radio system radio. The local area network interface is the system fiber distributed data interface standards.
Special requirement. see specific instructions or drawings provided.
Packaging is in accordance with a procedural specification or a special packaging instruction (spi). the appropriate specification number will be shown in the clear in the supplemental data area.
Esd sensitive electronic device requirements of mil-std-129 apply.
OPI: Optional Procedure Indicator Code. A one position alpha code that indicates the allowable deviations from the prescribed requirements.
SPI No.: Special packaging instructions number.
LVL A/B/C: Indicates the type of shipping container required for level A, B, or C maximum packing protection.
SPC Mkg: A two position code that identifies the special markings applied to the container, which is part of the total pack to protect the contained item during preservation, packing, storage, transit and removal from the pack.
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
Item does not contain precious metal.
Represents items with esd sensitivity.
Represents items with no adp components
The item is specifically designed to be or selected as being nuclear hard. in addition the item has other critical features such as tolerance, fit restrictions or application.
HMIC: Hazardous Material Indicator Code. A one position code that identifies a hazardous item.
PMIC: Precious Metal Indicator Code. A one position code which identifies items that have precious metals as part of their content. precious metals are those metals generally considered to be uncommon, highly valuable, and relatively superior in certain properties such as resistance to corrosion and electrical conductivity.
ESD: Electrostatic Discharge. Indicates if an item is susceptible to electrostatic discharge or electromagnetic interference damage. electrostatic discharge damage occurs when an accumulation of static electricity generated by the relative motion or separation of materials is released to another item by direct contact. electromagnetic interference damage occurs when an item comes into proximity with an electrostatic or magnetic field.
ENAC: Enviromental Attribute Code. Identifies items with environmentally preferred characteristics.
CRITL: Criticality Indicator Code. Indicates an item is technically critical by tolerance, fit, application, nuclear hardness properties, or other characteristics.