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M109 howitzer family
steel 65-35; enamel white; 126 deg of arc; 2.375 internal radius; 3.000external radius; 0.375 major groove depth x 45 deg major groove arc; 0.375 minor groove depth x 45 deg arc; minor groove od 2.000; 0.625 bore dia; 1.094thk at bore; 1.312 o/a thk; minor grooe 0.687 thk; major groove 0.687 thk; 0.625 C-TO-C between groove centerlines; 0.250 dia hole axially through web of major groove 2.412 from bore c/l
A cylindrical item with an essentially crowned face used for guiding or changing direction of ropes, cables, wires, bands or like items. The item may form part of a fairlead, roller or fairlead, roller and sheave or may be used as a separate item excludes pulley, flat; pulley, groove and pulley, cone.
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 no adp components
The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction 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.