Model: 45421

Panel Screw Assembly

Properties:

Thread Direction
Right-hand
Thread Length
1.012 inches
Fastener Length
1.082 inches
Head Style
Hexagon
Head Height
0.520 inches
Width Between Flats
0.451 inches
Internal Drive Style
Hexagon
Material Accommodated Thickness
0.512 inches
Thread Diameter
5.0 millimeters
Width Across Flats
0.156 inches
Min. Tensile Strength (psi)
160000 pounds per square inch
Thread Pitch In Millimeters
0.8
External Thread Tolerance Class
4h6h
Material
Aluminum alloy 6061 stand-off
Material
Steel comp 301 primary washer
Material
Steel comp 304 fastener
Material
Steel comp 302 spring
Material Specification
Astm-a-493 assn standard single material response fastener
Material Specification
Mil-s-5059a military specification single material response primary washer
Material Specification
Qq-a-225/8 federal specification single material response stand-off
Material Specification
Qq-w-423 federal specification single material response spring
Surface Treatment
Anodize stand-off
Surface Treatment
Passivate fastener
Surface Treatment
Passivate primary washer
Surface Treatment
Passivate spring
Surface Treatment Specification
Mil-a-8625 type 1 cl 1 military specification single treatment response stand-off
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 spring
Thread Series Designator
Iso m
NSN
5305-01-259-1200
Part Number
45421
Description
Screw Assembly,panel
CAGE
F2181

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 45421 NSN 5305-01-259-1200

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:
U
ESD:
ESD:
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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