NATO Stock Number
5305-01-514-1391
Sold in multiples of
1 EA
DEMIL
NO
Thread Class
2a
Thread Direction
Right-hand
Thread Length
0.141 inches
Fastener Length
Between 0.218 inches and 0.282 inches
Head Style
Pan
Head Diameter
Between 0.306 inches and 0.322 inches
Head Height
Between 0.105 inches and 0.115 inches
Washer Quantity
2
Internal Drive Style
Cross recess type 1
End Application
Wing aircraft
Thread Diameter
0.164 inches
Thready Qty Per Inch (tpi)
32
Secondary Washer Relationship To Primary Washer
Not identical
Secondary Washer Style
Flat
Primary Washer Outside Diameter
0.293 inches
Secondary Washer Outside Diameter
Between 0.307 inches and 0.317 inches
Primary Washer Style
Split helical ring
Primary Washer Material Thickness
0.040 inches
Secondary Washer Material Thickness
Between 0.013 inches and 0.019 inches
Material
Steel
Material Specification
Mil-s-5059 military specification all material responses secondary washer
Material Specification
Qq-s-763 federal specification all material responses fastener
Surface Treatment
Passivate fastener
Surface Treatment
Passivate primary washer
Surface Treatment Specification
Qq-p-35 federal specification single treatment response fastener
Surface Treatment Specification
Qq-p-35 federal specification single treatment response primary washer
Surface Treatment Specification
Qq-p-35 federal specification single treatment response secondary washer
Thread Series Designator
Unc
Specification Data
80205-nas1301 professional/industrial association standard
