Model: 2637507PC4

Recessed Washer

Properties:

Hole Diameter
Between 0.317 inches and 0.322 inches
Outside Diameter
Between 0.740 inches and 0.760 inches
Material Thickness
Between 0.065 inches and 0.075 inches
Hardness Rating
Between 36.0 rockwell c and 42.0 rockwell c
Top Recess Diameter
Between 0.357 inches and 0.362 inches
Bottom Recess Angle
45.0 degrees
Top Recess Angle
45.0 degrees
Bottom Recess Diameter
Between 0.357 inches and 0.362 inches
Surface Finish
63.0 microinches bottom
Surface Finish
63.0 microinches top
Heat Treatment
Annealed
Material
Steel comp 630
Style Designator
Recessed both sides
NSN
5310-00-499-3458
Part Number
2637507PC4
Description
Washer,recessed
CAGE
10001

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 2637507PC4 NSN 5310-00-499-3458

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:
0.1000lbs
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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