Model: 4903

Electrical-electronic Heat Sink

Properties:

Overall Length
4.000 inches
Overall Height
0.062 inches
Overall Width
4.000 inches
Unthreaded Mounting Hole Diameter
0.266 inches first mounting facility
Unthreaded Mounting Hole Diameter
0.375 inches second mounting facility
Unthreaded Mounting Hole Diameter
0.500 inches third mounting facility
Mounting Facility Type And Quantity
1 unthreaded hole second mounting facility
Mounting Facility Type And Quantity
3 unthreaded hole third mounting facility
Mounting Facility Type And Quantity
4 unthreaded hole first mounting facility
Material
Copper alloy
Surface Treatment
Nickel
NSN
5999-01-189-5263
Part Number
4903
Description
Heat Sink,electrical-electronic
CAGE
10741

An item which is specifically designed to absorb, conduct or dissipate heat generated by an electrical and/or electronic component or an external source in order to prevent damage to the component. Do not use if a more specific name applies.

Part 4903 NSN 5999-01-189-5263

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
61433
FIIG:
A03600
Concept No.:
App. Key:
B
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:
P
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:
Q
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
063085
UFC:
05380
LTL:
85.0
LCL:
--
WCC:
72D
TCC:
Z
SHC:
9
ACC:
Instruments/Radio

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Schedule B and Export
  • Schedule B: 8543909000
  • SITC: 77879
  • End Use: Electric apparatus
  • NAICS: 335999
  • USDA: 1

Freight Class: Electrical machines and apparatus parts, nesoi

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