Model: HSG7900-4C4

Panel Screw Assembly

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
0.281 inches
Fastener Length
0.915 inches
Head Style
Hexagon
Head Height
Between 0.172 inches and 0.190 inches
Width Between Flats
0.375 inches
Material Accommodated Thickness
Between 0.126 inches and 0.187 inches
Thread Diameter
0.250 inches
Thready Qty Per Inch (tpi)
28
Material
Steel comp 302 fastener or steel comp 304 fastener or steel comp 305 fastener or steel comp 316 fastener or steel comp 321 fastener or steel comp 347 fastener or steel comp 384 fastener or steel comp 385 fastener
Material
Steel comp 302 spring or steel comp 304 spring or steel comp 305 spring or steel comp 310 spring or steel comp 316 spring or steel comp 321 spring or steel comp 347 spring
Material
Steel comp 304 stand-off
Material Specification
Astm a493 assn standard all material responses fastener
Material Specification
Qq-s-763 federal specification single material response stand-off
Material Specification
Qq-w-423 federal specification all material responses spring
Surface Treatment
Passivate
Surface Treatment Specification
Qq-p-35 federal specification single treatment response
Thread Series Designator
Unf
NSN
5305-01-115-9686
Part Number
HSG7900-4C4
Description
Screw Assembly,panel
CAGE
0HDW7

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 HSG7900-4C4 NSN 5305-01-115-9686

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

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
--
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
E
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
093486
UFC:
48950
LTL:
RATING VARIABLE
LCL:
--
WCC:
713
TCC:
Z
SHC:
9
ACC:
Construction Materials

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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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