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

93568

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:

Status:

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators

HMIC

PMIC

ESD/EMI

ENAC

MMAC

CRITL

HMIC:

PMIC:

ESD:

MMAC:

CRITL:

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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