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2a
RIGHT-Hand
not casehardened
0.250in. ⁓1/4"
0.104in.
2-3/4 in.-32
2.310in.
0.125in.
straight
uns or ns
drilled face
2 holes
180.0
2.500in.
not included
not included
not included
end opposite to drive end counterbored to 2.50 in. plus 0.010 in. dia by 0.03 in. plus 0.010 in. deep and periphery of end opposite to drive end machined to 2.610 in. minus 0.010 in. dia by 0.030 in. plus 0.010 in. deep
steel, QQ-S-637, comp B1112
steel comp 1212
oxide
black oxide
A cylindrically shaped item with a concentric bore and a peripheral thread over its entire length or over a portion thereof. One face is drilled, slotted, knurled, or has projecting lugs for installation and/or removal purposes. Excludes retainer, optical element.
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
Precious metal content is unknown
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.