Model: 1770-222

Expansion Plug

Properties:

Outside Diameter
Between 2.440 inches and 2.441 inches
Material Thickness
Between 0.078 inches and 0.083 inches
Material
Steel comp 1010
Material Specification
66 federal standard single material response
Style Designator
A4 concave
Style Designator
Concave
NSN
5340-00-311-8741
Part Number
1770-222
Description
Plug,expansion
CAGE

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 1770-222 NSN 5340-00-311-8741

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

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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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