Model: NAS780-4U4

Close Toleran Screw

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
0.370 inches
Fastener Length
0.620 inches
Head Style
Pan
Head Diameter
Between 0.473 inches and 0.492 inches
Head Height
Between 0.162 inches and 0.175 inches
Grip Diameter
Between 0.2490 inches and 0.2495 inches
Internal Drive Style
Cruciform ribbed
End Application
C-5m aircraft
Thread Diameter
0.2500 inches
Grip Length
0.250 inches
Thready Qty Per Inch (tpi)
28
Material
Iron alloy 660
Surface Treatment
Passivate
Thread Series Designator
Unjf
NSN
5305-01-613-6731
Part Number
NAS780-4U4
Description
Screw,close Toleran
CAGE
80205

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:
SY
CRITL:

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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