Model: 1688-52

Key Washer

Properties:

Hole Diameter
Between 1.440 inches and 1.450 inches
Outside Diameter
2.320 inches
External Straight Key Width
0.400 inches
Internal Straight Key Width
0.160 inches
Distance From Centerline To Top Of Internal Key
Between 0.630 inches and 0.640 inches
Overall Distance Including Keys
2.800 inches
External Key Quantity
1
Internal Key Quantity
1
Material Thickness
0.120 inches
Material
Steel comp 4130
Surface Treatment
Cadmium
Style Designator
Key
NSN
5310-00-066-1958
Part Number
1688-52
Description
Washer,key
CAGE
13002

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 1688-52 NSN 5310-00-066-1958

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

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
194160
UFC:
55210
LTL:
50.0
LCL:
50.0
WCC:
596
TCC:
Z
SHC:
Z
ACC:
Trailers/Vehicles

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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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