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Turnlock Fastener Stud Assembly

Model / MPN: 537644-3 | NSN: 5325-00-351-7020
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
5325-00-351-7020
Sold in multiples of
1 EA
DEMIL
NO
Diameter
0.580 inches
Stud Assembly Style
Stud assembly
Distance From Engaging Member To Largest Bearing Surface Of Head
Between 0.602 inches and 0.617 inches
Eyelet Outside Diameter
Between 0.244 inches and 0.250 inches
Eyelet Length
0.322 inches
Material Accommodated Thickness
Between 0.090 inches and 0.119 inches
Stud Head Height
0.550 inches
Material
Steel comp 1018 head
Material
Steel ejector spring
Material
Steel eyelet
Material
Steel pin
Material Specification
Astm a108 assn standard single material response head
Material Specification
Astm a682 assn standard single material response eyelet
Material Specification
Qq-w-470 federal specification single material response ejector spring
Material Specification
Qq-w-470 federal specification single material response pin
Surface Treatment
Chromium head
Surface Treatment
Chromium eyelet
Surface Treatment
Cadmium ejector spring and chromate ejector spring
Surface Treatment
Cadmium pin and chromate pin
Surface Treatment
Cadmium and chromate ejector spring
Surface Treatment
Cadmium and chromate pin
Surface Treatment Specification
Qq-c-320, cl 1, type 1 federal specification single treatment response head
Surface Treatment Specification
Qq-c-320, cl 1, type 1 federal specification single treatment response eyelet
Surface Treatment Specification
Qq-p-416, cl 2, type 2 federal specification single treatment response ejector spring
Surface Treatment Specification
Qq-p-416, cl 2, type 2 federal specification single treatment response pin
537644 Series Parts

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537644-3 Cross Reference
  • 26S34-3
  • 1939106
  • 26S34-3
  • GS521M3