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Special requirements for nuclear propulsion plant equipment contained in individual repair parts ordering data instrumentation control no. Ac0412a, line no. 0009
MRC:
The length of a straight line which passes through the center of a mounting hole,and terminates at the circumference.AAMA
Mounting Hole Diameter:
0.169 inches
MRC:
The style designation indicating the configuration that most nearly corresponds to the appearance of the body.AAQL
Body Style:
Circular
MRC:
The structural characteristic(s) of the board.ABCX
Board Construction:
Solid construction
Board Height Excluding Terminals:
0.380 inches
MRC:
Indicates the type and number of facilities by which the item is mounted.AXHR
Mounting Facility Type And Quantity:
2 unthreaded hole
MRC:
The master requirement codes of those requirements which are technically critical by reason of tolerance,fit,performance,or other characteristics which affect identification of the item.CRTL
Criticality Code Justification:
Zzzy
MRC:
The number of nonfeedthru terminals furnished with the item.CSCS
Nonfeedthru Terminal Quantity:
6 single
MRC:
The arrangement of terminal positions on the item.CWLG
Terminal Pattern Arrangement:
Random
Major Diameter:
2.450 inches
MRC:
The chemical compound or mechanical mixture properties of which the item is fabricated.MATT
Material:
Copper alloy terminals
MRC:
The chemical compound or mechanical mixture properties of which the item is fabricated.MATT
Material:
Glass board and resin silicone board
MRC:
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.MDCL
Material Specification:
Mil-p-997 military specification single material response board
MRC:
An indication of the precious material and its location in the item.PMLC
Precious Material And Location:
Terminals external surfaces silver
MRC:
An indication of the precious material contained in the item,and the amount per a measurement scale.PMWT
Precious Material And Weight:
0.040 silver grains, troy
MRC:
Identification of the precious material contained in the item.PRMT
Precious Material:
Silver
MRC:
The metallic,nonmetallic,and/or chemical properties with which the item is plated,dipped,and/or coated.the treatment is designed to protect the surface(s) and cannot be wiped off.SFTT
Surface Treatment:
Nickel terminals and silver terminals
MRC:
A feature of the item of supply which must be specifically recorded when the reference number covers a range of items.ZZZY
Reference Number Differentiating Characteristics:
Material will be in accordance with ships parts control center activity hx quality control, manufacturing and testing specifications