Model: 666381

Assembled Washer Screw

Properties:

Thread Class
2a
Thread Direction
Right-hand
Fastener Length
Between 0.297 inches and 0.327 inches
Head Style
Fillister
Head Diameter
Between 0.250 inches and 0.270 inches
Head Height
Between 0.126 inches and 0.156 inches
Washer Quantity
1
Internal Drive Style
Slot
Thread Diameter
0.164 inches
Thready Qty Per Inch (tpi)
32
Primary Washer Outside Diameter
0.257 inches
Primary Washer Style
Split helical ring
Primary Washer Material Thickness
Between 0.031 inches and 0.041 inches
Material
Steel comp 1008 primary washer or steel comp 1018 primary washer
Material
Steel comp 1008 fastener or steel comp 1018 fastener
Material Specification
66 federal standard all material responses fastener
Material Specification
66 federal standard all material responses primary washer
Surface Treatment
Zinc
Thread Series Designator
Unc
NSN
5305-00-145-0230
Part Number
666381
Description
Screw,assembled Washer
CAGE
58275

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

Part 666381 NSN 5305-00-145-0230

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:
SX
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
--
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
E
LVL_B:
Q

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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