Model: 579856

Shouldered Washer

Properties:

Hole Diameter
Between 0.276 inches and 0.286 inches
Shoulder Diameter
Between 0.394 inches and 0.396 inches
Outside Diameter
Between 0.610 inches and 0.630 inches
Shoulder Height
Between 0.075 inches and 0.080 inches
Material Thickness
Between 0.030 inches and 0.034 inches
Hardness Rating
Between 32.0 rockwell c and 38.0 rockwell c
Surface Finish
63.0 microinches bottom
Surface Finish
63.0 microinches top
Surface Finish
63.0 microinches shoulder face
Surface Finish
90.0 microinches counterbore wall
Surface Finish
90.0 microinches inner
Surface Finish
90.0 microinches outer
Material
Steel comp 8740
Material Specification
Ams 6322 mfr ref single material response
Style Designator
Shouldered
NSN
5310-00-164-1100
Part Number
579856
Description
Washer,shouldered
CAGE
97139

A washer, round in shape, and having a centrally located hole. One bearing surface is flat and unbroken, the other surface is in the form of a raised shoulder (boss) having a flat bearing surface. The thickness of the shoulder (boss) must not exceed 25 percent of the shoulder (boss) diameter. For items having a shoulder (boss) of greater thickness, use bearing, sleeve; bushing sleeve; or spacer, sleeve. Excludes insulator, washer and thrust type washers.

Part 579856 NSN 5310-00-164-1100

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
15934
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:
SX
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.1000lbs
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:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
194160
UFC:
55210
LTL:
50.0
LCL:
--
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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