Model: HSG7900-3A4

Panel Screw Assembly

Properties:

Thread Direction
Right-hand
Thread Length
0.281 inches
Fastener Length
Between 0.975 inches and 1.005 inches
Head Style
Hexagon
Head Height
Between 0.105 inches and 0.120 inches
Width Between Flats
Between 0.305 inches and 0.312 inches
Internal Drive Style
Slot
End Application
F18e/f
Material Accommodated Thickness
Between 0.031 inches and 0.062 inches
Thread Diameter
0.1900 inches
Thready Qty Per Inch (tpi)
32
Part Name Assigned By Controlling Agency
Screw assembly panel captive spring loaded
Material
Iron alloy 660 fastener
Material
Steel comp 304 stand-off
Material
Stainless steel spring
Material Specification
Ams5737 assn standard single material response fastener
Material Specification
Qq-s-763 federal specification single material response stand-off
Material Specification
Qq-w-423 federal specification single material response spring
Surface Treatment
Passivate fastener
Surface Treatment
Passivate spring
Surface Treatment
Passivate stand-off
Surface Treatment Specification
Qq-p-23 federal specification single treatment response spring
Surface Treatment Specification
Qq-p-35 federal specification single treatment response fastener
Surface Treatment Specification
Qq-p-35 federal specification single treatment response stand-off
Thread Series Designator
Unjf
NSN
5305-01-477-5997
Part Number
HSG7900-3A4
Description
Screw Assembly,panel
CAGE
97928

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 HSG7900-3A4 NSN 5305-01-477-5997

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:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
093486
UFC:
48950
LTL:
RATING VARIABLE
LCL:
RATING VARIABLE
WCC:
573
TCC:
Z
SHC:
9
ACC:
Equipment for Aircraft

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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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