Model: 12839M

Key Washer

Properties:

Hole Diameter
Between 2.185 inches and 2.195 inches
Outside Diameter
Between 3.060 inches and 3.070 inches
External Straight Key Width
Between 0.250 inches and 0.255 inches
Internal Straight Key Width
Between 0.348 inches and 0.349 inches
Distance From Centerline To Top Of Internal Key
Between 0.988 inches and 0.991 inches
Overall Distance Including Keys
Between 3.370 inches and 3.380 inches
External Key Quantity
20
Internal Key Quantity
10
Material Thickness
Between 0.321 inches and 0.323 inches
Hardness Rating
Between 80.0 rockwell c and 83.0 rockwell c
Material
Steel comp 4620
Material Specification
Sae assn standard single material response
Style Designator
Key
NSN
5310-00-350-6753
Part Number
12839M
Description
Washer,key
CAGE
56442

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 12839M NSN 5310-00-350-6753

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:
713
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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