Model: 3257639-4

Thermal Release Heater

Properties:

Overall Length
1.750 inches
Overall Height
1.125 inches
Overall Width
1.000 inches
Mounting Hole Diameter
0.218 inches
Mounting Facility Type And Quantity
2 unthreaded hole
Current Rating For Which Designed
Between 24.20 amperes and 26.10 amperes
NSN
5999-00-504-9894
Part Number
3257639-4
Description
Heater,thermal Release
CAGE
53711

A resistive element which dissipates sufficient heat to melt the fusible material or distort the bimetallic element of an overload protective device when the temperature, as a result of an overload in an electrical circuit, reaches a predetermined value. Excludes coil (as modified); heating element, electrical; resistance element; resistor, thermal; thermal release, circuit breaker; and items with integral bimetallic element, contacts, or fusible material.

Part 3257639-4 NSN 5999-00-504-9894

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
60584
FIIG:
A503S0
Concept No.:
App. Key:
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:
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:
Q
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
061300
UFC:
34410
LTL:
77.5
LCL:
--
WCC:
658
TCC:
Z
SHC:
9
ACC:
Instruments/Radio

End Items End applications NSN 5999-00-504-9894 is a component of

  • Cargo/weapons Elevators
  • Main Feed Pumps
  • Jp-5 Aviation Fuels Systems
  • Aircraft Elevators
  • 1200 Psi Boilers
  • 02n2 Systems
  • Sturgeon Class Ssn (637)
  • Spruance Class Dd (963)
  • Forrestal Class Cv

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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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