Model: 637503

Expansion Plug

Properties:

Radius
0.031 inches
Outside Diameter
Between 0.6255 inches and 0.6265 inches
Material Thickness
Between 0.027 inches and 0.035 inches
Smallest Diameter
Between 0.6155 inches and 0.6255 inches
Height
0.719 inches
Material
Steel
Style Designator
Trapped cup
NSN
5340-00-360-8143
Part Number
637503
Description
Plug,expansion
CAGE
34623

A relatively thin metallic item, having a concave or cupped contour, designed to effect its own seal by compression against the circumference of a hole. It is used as a blowout plug in boilers, engines, and the like to relieve the pressure created by the expansion of fluids caused by heat or freezing.

Part 637503 NSN 5340-00-360-8143

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
03797
FIIG:
A538V0
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

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
093750
UFC:
49080
LTL:
RATING VARIABLE
LCL:
RATING VARIABLE
WCC:
713
TCC:
Z
SHC:
9
ACC:
Construction Materials

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Schedule B and Export
  • Schedule B: 8402900090
  • SITC: 71191
  • End Use: Industrial machines, other
  • NAICS: 332410
  • USDA: 1

Freight Class: Parts for steam or other vapor generating boilers and super-heated water boilers, except heat exchangers

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