Model: NWC78A340

Convex Washer

Special Features:

Spherical radius 0.840 in.

Properties:

Hole Diameter
0.525 inches
Outside Diameter
1.000 inches
Material Thickness
0.150 inches
Surface Finish
32.0 microinches bottom
Part Name Assigned By Controlling Agency
Navy special project
Material
Steel comp 630
Material Specification
Ams 5643, cond h1100 assn standard single material response
Surface Treatment
Passivate
Surface Treatment Specification
Qq-p-35, type 1 federal specification single treatment response
Style Designator
Convex
NSN
5310-01-248-7071
Part Number
NWC78A340
Description
Washer,convex
CAGE
12934

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 raised to form a curved or spherical contour. See also washer (1), concave. Excludes bearing, washer thrust.

Part NWC78A340 NSN 5310-01-248-7071

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
15931
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

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
--
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
E
LVL_B:

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
194160
UFC:
55210
LTL:
50.0
LCL:
--
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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