Model: 229-004321

Concave Washer

Properties:

Hole Diameter
Between 0.255 inches and 0.262 inches
Radius
Between 2.710 inches and 2.720 inches
Outside Diameter
Between 0.710 inches and 0.730 inches
Recess Depth
0.040 inches
Material Thickness
0.120 inches
Surface Finish
32.0 microinches top
Part Name Assigned By Controlling Agency
Navy special project
Material
Stainless steel
Material Specification
Mil-s-18732 military specification single material response
Surface Treatment
Oxide film
Surface Treatment Specification
Mil-c-13924, class 2 military specification single treatment response
Style Designator
Concave
NSN
5310-01-052-0039
Part Number
229-004321
Description
Washer,concave
CAGE
33827

A washer which is round with a centrally located hole. One bearing surface is smooth, flat, and unbroken, the other bearing surface is smooth, unbroken, and is recessed to form a curved or spherical contour. See also washer (1), convex. Excludes washer (1), recessed and bearing, washer, thrust.

Part 229-004321 NSN 5310-01-052-0039

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
15930
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:
093486
UFC:
48950
LTL:
RATING VARIABLE
LCL:
--
WCC:
576
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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