Model: 187303

Recessed Washer

Properties:

Hole Diameter
Between 0.646 inches and 0.666 inches
Outside Diameter
Between 1.165 inches and 1.175 inches
Overall Height
Between 0.061 inches and 0.064 inches
Recess Depth
Between 0.011 inches and 0.021 inches
Material Thickness
0.046 inches
Material
Steel comp 410 and steel comp 321 and steel comp 410 and steel comp 303
Material Specification
Ams 5504 assn standard 1st material response and ams 5510 assn standard 2nd material response and ams 5613 assn standard 3rd material response and ams 5640 assn standard 4th material response
Surface Treatment
Oxide film
Style Designator
Recessed
NSN
5310-00-098-3595
Part Number
187303
Description
Washer,recessed
CAGE
2A659

A washer of any peripheral shape having a centrally located hole. Both bearing surfaces are parallel and flat, but one or both of the bearing surfaces must be broken by a counterbore, countersink, or similarly shaped recess. The thickness must not exceed 25 per cent of the outside diameter or the largest outside dimension. The maximum limit of the tolerance or range applied to the thickness and/or largest outside dimension must be used to determine compliance. Excludes washer, concave, retainer, packing, and thrust type washers. See also spacer, sleeve; and spacer, stepped.

Part 187303 NSN 5310-00-098-3595

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
15933
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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