Model: 310395

Recessed Washer

Special Features:

Outside periphery of counterbore chamfered to depth of 0.020 in. Min, 0.030 in. Max at 8 to 12 deg

Properties:

Hole Diameter
Between 0.465 inches and 0.470 inches
Outside Diameter
Between 0.830 inches and 0.831 inches
Overall Height
Between 0.130 inches and 0.140 inches
Recess Depth
Between 0.060 inches and 0.065 inches
Material Thickness
Between 0.070 inches and 0.076 inches
Hardness Rating
Between 81.2 rockwell a and 85.0 rockwell a
Surface Finish
63.0 microinches all surfaces
Material
Steel comp e52100
Material Specification
66 federal standard single material response or astm a322 assn standard single material response or astm a331 assn standard single material response
Style Designator
Recessed
NSN
5310-00-143-6144
Part Number
310395
Description
Washer,recessed
CAGE
58163

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 310395 NSN 5310-00-143-6144

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

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:
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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