Model: 56997-1

Panel Screw Assembly

Properties:

Fastener Length
2.589 inches
Head Style
Hexagon
Head Height
1.310 inches
Width Between Flats
0.750 inches
Internal Drive Style
Hexagon
End Application
Apache attack helicopter
Width Across Flats
0.500 inches
Material
Steel comp 303 locking feature
Material
Steel comp 303 stand-off
Material
Steel comp 630 fastener
Material
Steel comp 631 spring
NSN
5305-01-470-8303
Part Number
56997-1
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 56997-1 NSN 5305-01-470-8303

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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