Model: NAS1443-20

Lock Washer

Properties:

Hole Diameter
3.730 inches
Outside Diameter
4.219 inches
Material Thickness
0.125 inches
End Application
Aircraft; c-5 a, b, c
Hardness Rating
36.0 rockwell c
Part Name Assigned By Controlling Agency
Lockwasher bearing retainer
Color
Black
Material
Steel comp 1050
Material Specification
Ams 5085 assn standard single material response
Surface Treatment
Oxide
Surface Treatment Specification
Mil-c-13924 class 1 grade c military specification single treatment response
Style Designator
Flat external teeth
NSN
5310-01-586-0273
Part Number
NAS1443-20
Description
Washer,lock
CAGE
80205

A washer which is usually round with a centrally located hole. Its edges and two bearing surfaces are so designed that applied pressure brings into play the spring tension and/or frictional locking principle which materially resists any tendency toward turning. It may be made of one or two pieces

Part NAS1443-20 NSN 5310-01-586-0273

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
14218
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:
A
ESD:
A
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:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
093486
UFC:
48950
LTL:
RATING VARIABLE
LCL:
NO RATING
WCC:
573
TCC:
Z
SHC:
9
ACC:
Construction Materials

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Schedule B and Export
  • Schedule B: 7318210000
  • SITC: 69422
  • End Use: Finished metal shapes
  • NAICS: 332722
  • USDA: 1

Freight Class: Spring washers and other lock washers, iron or steel

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