Model: 520418

Key Washer

Properties:

Hole Diameter
Between 0.510 inches and 0.520 inches
Outside Diameter
0.780 inches
External Prebent Key Length
0.094 inches
External Tapered Key Width
0.340 inches
External Prebent Key Width
Between 0.115 inches and 0.120 inches
Distance From Centerline To Inside Of Prebent Key
0.430 inches
Overall Distance Including Keys
1.026 inches
Split Key Length
0.096 inches
External Key Quantity
3
Material Thickness
Between 0.085 inches and 0.088 inches
Angle Between External Keys
60.0 degrees
External Prebent Key Angle
15.0 degrees
Material
Steel or steel
Material
Steel or steel
Material Specification
Qq-s-636 cd4 federal specification 1st material response or qq-s-636 cd 5 federal specification 2nd material response
Style Designator
Key
NSN
5310-00-741-0167
Part Number
520418
Description
Washer,key
CAGE
02978

A washer of nonresilient material usually having two parallel bearing surfaces. The outside and/or inside edges have one or more protuberances. The ends and/or edges may be prebent at any angle or the protuberances may be prebent at any angle to the bearing surfaces. The keys or lugs may be fitted into keyways in adjacent material or they may be bent over after application to hold or lock one or more items in place. Excludes thrust type washer.

Part 520418 NSN 5310-00-741-0167

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
01869
FIIG:
A022B0
Concept No.:
1
App. Key:
A
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:
A
ESD:
ESD:
MMAC:
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:
B

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
194160
UFC:
55210
LTL:
50.0
LCL:
--
WCC:
573
TCC:
Z
SHC:
9
ACC:
Construction Materials

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Schedule B and Export
  • Schedule B: 7318220000
  • SITC: 69422
  • End Use: Finished metal shapes
  • NAICS: 332722
  • USDA: 1

Freight Class: Washers other than lock washers, iron or steel

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