Model: EF603-4

Turnlock Fastener Stud Assembly

Properties:

Diameter
Between 0.258 inches and 0.308 inches
Securing Device Type
Spring
End Application
Merlin eh101 helicopter
Turnlock Stud Head Style
Flat fillister
Stud Assembly Style
Stud assembly
Distance From Engaging Member To Largest Bearing Surface Of Head
Between 0.601 inches and 0.616 inches
Eyelet Outside Diameter
Between 0.244 inches and 0.250 inches
Eyelet Length
0.322 inches
Material Accommodated Thickness
Between 0.120 inches and 0.149 inches
Drive Type
Cross recess
Stud Head Height
Between 0.088 inches and 0.098 inches
Part Name Assigned By Controlling Agency
Assembly - airloc 1/4 turn, steelrecess
Material
Steel comp 4037 stud
Material Specification
Astm-a-547 assn standard single material response stud
Surface Treatment
Cadmium
Surface Treatment Specification
Qq-p-416, type 2 federal specification single treatment response
NSN
5325-01-475-8788
Part Number
EF603-4
Description
Stud Assembly,turnlock Fastener
CAGE
U7941

A stud, turnlock fastener over which may be assembled an eyelet, turnlock fastener. Stud(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.

Part EF603-4 NSN 5325-01-475-8788

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
18484
FIIG:
A05400
Concept No.:
App. Key:
HJ
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
A
ESD:
A
ESD:
A
MMAC:
CRITL:
X

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Schedule B and Export
  • Schedule B: 9607190000
  • SITC: 89985
  • End Use: Finished textile supplies
  • NAICS: 339993
  • USDA: 1

Freight Class: Slide fasteners, nesoi

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