Model: 74-43905-0003

Lock Washer

Properties:

Hole Diameter
Between 0.141 inches and 0.151 inches
Outside Diameter
0.239 inches
Material Thickness
Between 0.025 inches and 0.031 inches
Hardness Rating
Between 45.0 rockwell c and 53.0 rockwell c
Material
Steel comp 302 or steel comp 420
Material Specification
66, uns s30200 federal standard 1st material response or 66, uns s42000 federal standard 2nd material response
Surface Treatment
Passivate
Surface Treatment Specification
Qq-p-35 federal specification single treatment response
Style Designator
Split helical-right hand
Specification Data
81348-ff-w-84 government specification and 24617-431754 manufacturers standard and 96906-ms35337/canceled/ government standard
Nondefinitive Specification/std Data
B class and 1 style
NSN
5310-00-043-1754
Part Number
74-43905-0003
Description
Washer,lock
CAGE
89944

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 74-43905-0003 NSN 5310-00-043-1754

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:
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: 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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