Model: FON20-7518-3

Panel Screw Assembly

Properties:

Fastener Length
Between 24.8 millimeters and 25.3 millimeters
Head Style
Flat countersunk
Head Diameter
Between 6.9 millimeters and 7.4 millimeters
Internal Drive Style
Torx
Material Accommodated Thickness
Between 2.5 millimeters and 3.2 millimeters
Thread Diameter
5.0 millimeters
Features Provided
Flat washer and retaining clip
Thread Pitch In Millimeters
0.8
Countersink Angle
Between 98.0 degrees and 102.0 degrees
Lead Thread Quantity
Two
Material
Iron alloy 660 fastener
Material
Steel comp 316 stand-off
Material
Steel comp 631 spring
Material Specification
Ams5853 assn standard single material response fastener
Material Specification
Ams5853 assn standard single material response stand-off
Material Specification
Qq-s-763 federal specification single material response spring
Surface Treatment
Passivate
Surface Treatment Specification
Qq-p-35 federal specification single treatment response
Thread Series Designator
Mj
NSN
5305-01-509-5483
Part Number
FON20-7518-3
Description
Screw Assembly,panel
CAGE
H1822

A headed, threaded fastening device over which may be assembled; (1) a stand-off; (2) a flanged bushing with washer(s) and/or a shouldered bushing without a flange, or it may have an internally threaded sleeve that is an integral part of the screw; a washer and an externally thread self-locking bushing that is driven by an inserted driver. Attached to panel by threaded bushing or by flaring end of stand-off, or bushing. Used in conjunction with a speed nut, nut plate, or driven into a threaded hole in the item that the panel is fastened to. May be spring loaded.

Part FON20-7518-3 NSN 5305-01-509-5483

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
33044
FIIG:
A003B0
Concept No.:
App. Key:
SU
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: 7318152000
  • SITC: 69421
  • End Use: Iron and steel products, other
  • NAICS: 332722
  • USDA: 1

Freight Class: Bolts and bolts and their nuts or washers exported in the same shipment

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