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Turnlock Fastener Stud Assembly

Model / MPN: 40S51A040-3A | NSN: 5325-00-611-6727
ITAR Registered seal

A stud, turnlock fastener over which may be assembled an eyelet, turnlock fastener. Stu (s) without cam slots or cam lead threads are provided with a crosspin or eared nut for locking with the mating receptacle, turnlock fastener. May be spring loaded. For like items having a threaded fastener, see screw assembly, panel or screw, panel fastener.

Product Details
NATO Stock Number
5325-00-611-6727
Sold in multiples of
1 EA
DEMIL
NO
Diameter
Between 0.377 inches and 0.384 inches
Securing Device Type
Washer
Turnlock Stud Head Style
Stud head
Stud Assembly Style
Stud assembly
Distance From Engaging Member To Largest Bearing Surface Of Head
Between 0.575 inches and 0.585 inches
Eyelet Outside Diameter
Between 0.365 inches and 0.373 inches
Eyelet Length
Between 0.145 inches and 0.156 inches
Material Accommodated Thickness
Between 0.443 inches and 0.453 inches
Drive Type
Slotted
Stud Head Height
0.092 inches
Material
Steel comp 302 washer
Material
Steel comp 4130 grommet
Material
Steel comp 4130 stud
Material
Steel comp 305 eyelet
Material
Steel ejector spring
Material
Steel pin
Material Specification
Astm a331 assn standard single material response grommet
Material Specification
Astm a331 assn standard single material response stud
Material Specification
Qq-w-470 federal specification single material response ejector spring
Material Specification
Qq-w-470 federal specification single material response pin
Material Specification
Qq-s-766 federal specification single material response eyelet
Material Specification
Qq-s-766 federal specification single material response washer
Surface Treatment
Cadmium stud and chromate stud
Surface Treatment
Cadmium ejector spring and chromate ejector spring
Surface Treatment
Cadmium eyelet and chromate eyelet
Surface Treatment
Cadmium pin and chromate pin
Surface Treatment
Passivate grommet
Surface Treatment
Passivate washer
Surface Treatment Specification
Qq-p-35 federal specification single treatment response grommet
Surface Treatment Specification
Qq-p-35 federal specification single treatment response washer
Surface Treatment Specification
Qq-p-416, type 2, cl 2 federal specification single treatment response ejector spring
Surface Treatment Specification
Qq-p-416, type 2, cl 2 federal specification single treatment response eyelet
Surface Treatment Specification
Qq-p-416, type 2, cl 2 federal specification single treatment response pin
Surface Treatment Specification
Qq-p-416, type 2, cl 2 federal specification single treatment response stud
40S51A040 Series Parts

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40S51A040-3A Cross Reference
  • 40551A040-3A