5310-01-034-3199 (31452F-PC46-7)
NSN 5310-01-034-3199 (NIIN 01-034-3199) is a hexagon plain nut in Federal Supply Class 5310, Nuts And Washers — a nut, flat on top and bottom having 6 flat sides. Manufacturer part number 31452F-PC46-7 (Babcock & Wilcox Companies, The, CAGE 92439); also referenced as 566D357PC2 (Bechtel Technical Services Inc).
NIIN assigned January 1977; unit of issue EA (each), $134.00 gov standard price; export Schedule B 7318.16.0000; ships at 1.6 lb / 0.0104 cu ft.