Model: AVL398AC4-1

Panel Screw Assembly

Properties:

Thread Direction
Right-hand
Fastener Length
Between 20.9 millimeters and 21.4 millimeters
Head Style
Flat countersunk
Head Diameter
8.7 millimeters
Features Provided
Flat washer and retaining clip
Material
Iron alloy 660 fastener
Material
Steel comp 304 stand-off or steel comp 316 stand-off
Material
Steel comp 631 spring
Material Specification
Ams5853 assn standard single material response fastener
Material Specification
Ams5678 assn standard single material response spring
Material Specification
Astm a240 assn standard 1st material response stand-off or qq-s-763 federal specification 2nd material response stand-off
Surface Treatment
Passivate
Surface Treatment Specification
Qq-p-35 federal specification single treatment response
NSN
5305-01-509-5477
Part Number
AVL398AC4-1
Description
Screw Assembly,panel
CAGE
84256

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 AVL398AC4-1 NSN 5305-01-509-5477

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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