| GENERAL CHARACTERISTICS ITEM DESCRIPTION | PLATE MATERIAL ALUMINUM ALLOY,42 FASTENER HOLES,0.250 IN. NOM HOLE DIA. EACH HOLE,8 ATTACHMENT HOLES,0.218 IN. NOM THRU 0.400 IN. NOM DIA. X 100 DEG COUNTERSUNK EACH HOLE,2 RAIL ASSEMBLIES SPACED 7.375 IN. NOM APART,12 HOLES 0.630 IN. NOM DIA. TO ACCOMADATE 12 RETAINING RINGS AND STUD SEATS,ASSEMBLY IS PART OF 3 MAN SEAT,MEDEVAC SYSTEM |