Model: 4406

Lock Washer
Description:

0.168 inches hole diameter, 0.280 inches outside diameter, 0.031 inches material thickness, 45.0 rockwell c hardness rating, steel comp 1060 or steel comp 1080 material.

Properties:

Hole Diameter
Between 0.168 inches and 0.178 inches
Outside Diameter
0.280 inches
Material Thickness
Between 0.031 inches and 0.037 inches
Hardness Rating
Between 45.0 rockwell c and 53.0 rockwell c
Material
Steel comp 1060 or steel comp 1080
Material Specification
66, uns g10600 through uns g10800 federal standard all material responses
Surface Treatment
Cadmium and chromate or zinc and chromate
Surface Treatment Specification
Qq-p-416, type 2, class 3 federal specification 1st treatment response or qq-z-325, type 2, class 3 federal specification 2nd treatment response
Style Designator
Split helical-right hand
Specification Data
81348-ff-w-84 government specification and 96906-ms35337/canceled/ government standard and 24617-131182 manufacturers standard
Departure From Cited Document
Ff-w-84, paragraph 3.3.1 cadmium plating or paragraph 3.3.2 zinc coating
NSN
5310-00-013-1182
Part Number
4406
Description
Washer,lock
CAGE
27319

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 4406 NSN 5310-00-013-1182

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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