NATO Stock Number
5305-00-083-6645
Sold in multiples of
100 EA
DEMIL
NO
Thread Class
2a
Thread Direction
Right-hand
Thread Length
Between 0.348 inches and 0.360 inches
Fastener Length
Between 0.468 inches and 0.500 inches
Head Style
Pan
Head Diameter
Between 0.357 inches and 0.373 inches
Head Height
Between 0.122 inches and 0.132 inches
Washer Quantity
2
Internal Drive Style
Cross recess type 1
Thread Diameter
0.190 inches
Thready Qty Per Inch (tpi)
32
Secondary Washer Relationship To Primary Washer
Not identical
Secondary Washer Style
Flat
Primary Washer Outside Diameter
0.337 inches
Secondary Washer Outside Diameter
Between 0.338 inches and 0.348 inches
Primary Washer Style
Split helical ring
Primary Washer Material Thickness
0.047 inches
Secondary Washer Material Thickness
Between 0.029 inches and 0.035 inches
Material
Steel comp 301 primary washer or steel comp 302 primary washer or steel comp 304 primary washer or steel comp 316 primary washer or steel comp 347 primary washer or steel comp 348 primary washer
Material
Steel comp 301 secondary washer or steel comp 302 secondary washer or steel comp 304 secondary washer or steel comp 316 secondary washer or steel comp 347 secondary washer or steel comp 348 secondary washer
Material
Steel comp 303 fastener or steel comp 303se fastener
Material Specification
Mil-s-7720 military specification 1st material response fastener or astm a582 assn standard 2nd material response fastener
Surface Treatment
Passivate fastener
Surface Treatment
Passivate primary washer
Surface Treatment
Passivate secondary washer
Thread Series Designator
Unf
Specification Data
80205-nas1301 professional/industrial association standard
