Model: 720297-129

Panel Screw Assembly

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
0.312 inches
Fastener Length
1.212 inches
Head Style
Hexagon
Head Height
Between 0.181 inches and 0.187 inches
Width Between Flats
Between 0.367 inches and 0.375 inches
Material Accommodated Thickness
0.562 inches
Thread Diameter
0.250 inches
Thready Qty Per Inch (tpi)
28
Material
Iron alloy 660 fastener
Material
Iron alloy 660 primary washer
Material
Steel comp 301 secondary washer
Material
Steel spring
Thread Series Designator
Unf
NSN
5305-01-185-2849
Part Number
720297-129
Description
Screw Assembly,panel
CAGE
05869

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 720297-129 NSN 5305-01-185-2849

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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