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Alaska-ceder or port-orford-ceder may be substituted for mahogany planking and @decking, see nsns5510-220-4702, 5510-220-4706, 5510-220-4711 and 5510-220-4716 for possible substitutes
MRC:
Indicates the maxmium slope of grain in relation to the length of the item.CQHF
Maximum Grain Slope:
Any acceptable
MRC:
A measurement taken at right angles to the length of an item,in distinction from thickness.CQKJ
Random Width:
6 in. And wider, requiring 60 pct 10 in. And wider
MRC:
An indication of the species and grade of the item,and the grading association.CQWY
Species-grade And Grading Association:
Mahogany ship decking unrecognized
MRC:
The moisture content retained in the item after seasoning,expressed in percent.CRCL
Moisture Content Retention Percentage:
15.0
MRC:
A measurement of the longest dimension of an item,in distinction from width.CRJD
Random Length:
8 feet and longer, requiring 60 pct 16 feet and longer
MRC:
A measurement taken at right angles to the length of an item,in distinction from thickness,its location on the item,and the measuring method used.CRPW
Width-location And Measuring Method:
6.000 inches tapered end random
MRC:
The means used and the measurement of the longest dimension of an item.CRXX
Measuring Method And Length:
12.000 feet random
MRC:
The extent of surface dressing or roughness of the item.CRYQ
Surface Condition Degree:
Rough-unsanded full length
MRC:
A measurement of the smallest dimension of an item,in distinction from length or width,its location on the item,and the measuring method used.CSHP
Thickness-location And Measuring Method:
1.250 inches specified
MRC:
The required purpose or application of the typical wood products for which the item is intended.CSTS
Typical Wood Products Use:
Decking and planking for ships
MRC:
Characteristics or qualities of an item,not covered in any other requirement,which are considered essential information for one or more functions excluding nsn assignment.SUPP
Supplementary Features:
Btypical use--for boat and ship contruction, replacement of bright work where appearance governs and for structural applications where hull plans specify /mahogany only/, unit @of issue--board foot
MRC:
The number,letter,or symbol that indicates the type,style,grade,class,and the like,of an item in a nonidentifying specification or standard.ZZZT
Specification Or Standard:
Pd class
