Model: 1989653-1

Key Washer

Properties:

Hole Diameter
0.320 inches
Outside Diameter
0.551 inches
External Prebent Key Length
0.210 inches
External Prebent Key Width
0.350 inches
Overall Distance Including Keys
0.761 inches
Material Thickness
0.040 inches
Material
Aluminum alloy
Material Specification
Ams4008, 3003 h14, 6507 assn standard single material response
Surface Treatment
Anodize
Surface Treatment Specification
Mil-a-8625, type ii, class 2, gray military specification single treatment response
Style Designator
Key
NSN
5310-01-231-4004
Part Number
1989653-1
Description
Washer,key
CAGE
94580

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 1989653-1 NSN 5310-01-231-4004

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

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Schedule B and Export
  • Schedule B: 7616108000
  • SITC: 69440
  • End Use: Finished metal shapes
  • NAICS: 332722
  • USDA: 1

Freight Class: Cotters, cotter-pins, washers and similar articles, of aluminum

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