Model: K641246-11

Thrust Washer Bearing

Properties:

Cross Sectional Shape
Shouldered
Flange Thickness
Between 0.1550 inches and 0.1570 inches
Outside Diameter
3.7500 inches
Center Hole Shape
Round
Diameter
3.3440 inches
Overall Thickness
0.5000 inches
Shank Outside Diameter
Between 3.5022 inches and 3.5030 inches
Corner Shape
Square first inside corner
Corner Shape
Square first outside corner
Corner Shape
Square fourth outside corner
Corner Shape
Square second inside corner
Corner Shape
Square second outside corner
Corner Shape
Square third outside corner
Hardness Rating
90.0 rockwell b
Surface Finish
32.0 microinches left side
Material
Copper alloy 630
Material Specification
Ams 4640 assn standard single material response
Surface Treatment
Cadmium and chromate
Surface Treatment Specification
Qq-p-416, type 2, cl 3 federal specification all treatment responses
Style Designator
Round
Test Data Document
84955-ckps212 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).
NSN
3120-00-159-8596
Part Number
K641246-11
Description
Bearing,washer,thrust
CAGE

An item of any peripheral shape usually having one flat or spherical surface and a centrally located hole. It is designed for applications involving moving (kinetic) loads. Except for items fabricated from bearing quality synthetic (plastic) or composed of multilayer material, one bearing surface must either have a specific surface finish designation of 32 microinch (0.8 micrometre) or less, arithmetical average (aa) (arithmetic mean deviation) or one of the following conditions: be lapped or ground; have visible or detectable means of lubrication; grooves, indentations; or self-lubrication. The thickness must not exceed 25 percent of the outside diameter of the shortest distance between peripheral flats (when thickness and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance). Excludes straight, tubular (without flange) items having a bearing surface(s) parallel to the axis of the bore only. See also washer, flat and spacer, sleeve.

Part K641246-11 NSN 3120-00-159-8596

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
13211
FIIG:
A045A0
Concept No.:
App. Key:
L
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:
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:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
114870
UFC:
58890
LTL:
77.5
LCL:
--
WCC:
742
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

End Items End applications NSN 3120-00-159-8596 is a component of

  • Seasprite H-2 Helicopter

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Schedule B and Export
  • Schedule B: 8482105008
  • SITC: 74610
  • End Use: Industrial machines, other
  • NAICS: 332991
  • USDA: 1

Freight Class: Thrust ball bearings

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