Model: 5431F

Assembled Washer Screw

Properties:

Thread Class
2a
Thread Direction
Right-hand
Thread Length
0.250 inches
Fastener Length
0.312 inches
Head Style
Pan no. 2
Head Diameter
Between 0.256 inches and 0.270 inches
Head Height
Between 0.072 inches and 0.082 inches
Washer Quantity
1
Internal Drive Style
Slot
Thread Diameter
0.138 inches
Thready Qty Per Inch (tpi)
32
Primary Washer Outside Diameter
0.256 inches
Primary Washer Style
Split helical ring
Primary Washer Material Thickness
0.022 inches
Material
Steel
Surface Treatment
Zinc and cadmium
Thread Series Designator
Unc
NSN
5305-00-281-8309
Part Number
5431F
Description
Screw,assembled Washer
CAGE
79575

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

Part 5431F NSN 5305-00-281-8309

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:
--
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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