Model: NAS720-4-7

Assembled Washer Screw

Properties:

Thread Class
2a
Thread Direction
Right-hand
Thread Length
0.357 inches
Fastener Length
0.438 inches
Head Style
Pan
Head Diameter
Between 0.205 inches and 0.219 inches
Head Height
Between 0.058 inches and 0.068 inches
Washer Quantity
2
Internal Drive Style
Slot
Thread Diameter
0.112 inches
Thready Qty Per Inch (tpi)
40
Secondary Washer Relationship To Primary Washer
Not identical
Secondary Washer Style
Flat
Primary Washer Outside Diameter
0.212 inches
Secondary Washer Outside Diameter
0.223 inches
Primary Washer Style
Split helical ring
Primary Washer Material Thickness
0.025 inches
Secondary Washer Material Thickness
0.019 inches
Material
Steel comp 1010 fastener
Material
Steel primary washer
Surface Treatment
Cadmium
Thread Series Designator
Unc
NSN
5305-00-728-1496
Part Number
NAS720-4-7
Description
Screw,assembled Washer
CAGE
80205

A screw, (as modified) to which has been assembled one or more nonremovable washer(s).

Part NAS720-4-7 NSN 5305-00-728-1496

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
06660
FIIG:
A003B0
Concept No.:
App. Key:
SA
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

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
093486
UFC:
48950
LTL:
RATING VARIABLE
LCL:
50.0
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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