Model: 423551

Assembled Washer Screw

Properties:

Thread Class
2a
Thread Direction
Right-hand
Thread Length
Between 1.355 inches and 1.438 inches
Fastener Length
Between 1.438 inches and 1.500 inches
Head Style
Hexagon
Head Height
Between 0.105 inches and 0.120 inches
Width Between Flats
Between 0.305 inches and 0.312 inches
Washer Quantity
1
Internal Drive Style
Slot
Thread Diameter
0.190 inches
Thready Qty Per Inch (tpi)
20
Primary Washer Outside Diameter
Between 0.365 inches and 0.381 inches
Primary Washer Style
Flat external teeth
Primary Washer Material Thickness
Between 0.020 inches and 0.025 inches
Material
Steel comp 1010 or steel comp 1020 or steel comp 1050
Material Specification
Sae assn standard all material responses
Surface Treatment
Cadmium or zinc
Surface Treatment Specification
Qq-p-416, type 1, cl 3 federal specification 1st treatment response or qq-z-325, type 1, cl 3 federal specification 2nd treatment response
Thread Series Designator
Unc
NSN
5305-00-042-3551
Part Number
423551
Description
Screw,assembled Washer
CAGE
7X677

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

Part 423551 NSN 5305-00-042-3551

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:
573
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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