Serving our customers with quality and safety first.
2b
RIGHT-Hand
hexagon
0.519in. and 0.575in. ⁓37/64"
1.450in. and 1.500in. ⁓1-1/2"
unf
12
80.0 rockwell b and 32.0 rockwell c
1.000in. ⁓1/64"
chamfered or washer faced
B18.2.2 table 3 1-12UNF-2B hex nut astm A563 grade a steel cadmium or zinc plated
steel
astm A563, grade a assn std single material response or sae J995; grade 2, uns K05802 assn std single material response
cadmium and chromate or zinc
QQ-P-416, type 2, class 3 fed spec 1st treatment response or QQ-Z-325, type 2, class 3 fed spec 2nd treatment response
81348-FF-N-836 government specification and 80204-ansi B18.2.2 professional/industrial association standard and 96906-MS35691/canceled/ government standard
2 type and 5 style and 1.000-12UNF-2B size and a grade and 3 table
FF-N-836, paragraph 3.6.1 cadmium or paragraph 3.6.2 zinc finihes
as differentiated by extra long reference number
A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)
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.