Model: 20590-174

Key Washer

Properties:

Hole Diameter
Between 0.472 inches and 0.474 inches
Outside Diameter
0.719 inches
External Prebent Key Length
Between 0.050 inches and 0.055 inches
External Prebent Key Width
0.109 inches
Internal Straight Key Width
Between 0.057 inches and 0.060 inches
Distance From Centerline To Top Of Internal Key
Between 0.200 inches and 0.202 inches
Distance From Centerline To Inside Of Prebent Key
0.360 inches
Overall Distance Including Keys
0.750 inches
Material Thickness
Between 0.030 inches and 0.033 inches
Material
Copper alloy
Style Designator
Key
NSN
5310-00-859-3818
Part Number
20590-174
Description
Washer,key
CAGE
04009

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 20590-174 NSN 5310-00-859-3818

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:
U
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:

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
093486
UFC:
48950
LTL:
RATING VARIABLE
LCL:
--
WCC:
573
TCC:
Z
SHC:
9
ACC:
Construction Materials

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Schedule B and Export
  • Schedule B: 7415210000
  • SITC: 69432
  • End Use: Finished metal shapes
  • NAICS: 332722
  • USDA: 1

Freight Class: Copper washers including spring washers not threaded

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