Model: 549299

Recessed Washer

Properties:

Hole Diameter
Between 0.671 inches and 0.675 inches
Outside Diameter
Between 0.830 inches and 0.850 inches
Recess Diameter
Between 0.733 inches and 0.737 inches
Recess Depth
0.031 inches
Material Thickness
Between 0.049 inches and 0.051 inches
Recess Angle
45.0 degrees
Surface Finish
32.0 microinches bottom
Surface Finish
32.0 microinches top
Material
Steel comp 4130
Material Specification
Mil-s-6758 military specification single material response
Style Designator
15 recessed
NSN
5310-00-844-2895
Part Number
549299
Description
Washer,recessed
CAGE
70210

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 549299 NSN 5310-00-844-2895

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:
A
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:
596
TCC:
Z
SHC:
Z
ACC:
Equipment for Aircraft

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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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