Model: AS3121-57

Expansion Plug

Special Features:

Manufacturer's name-plug, expansion-aluminum, 2024-t4, long; standard and .010 oversize diameters

Properties:

Criticality Code Justification

Supp

Supplementary Features

Item is not csi but has critical features such as heat treatment, surface finish, or material type and special insp. Req.S such as magnetic particle insp. Or fluorescent penetrant inspection

NSN

5340-01-507-8486

Part Number

AS3121-57

Description

Plug,expansion

CAGE

06848

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 AS3121-57 NSN 5340-01-507-8486

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:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

095190

UFC:

49790

LTL:

RATING VARIABLE

LCL:

WCC:

713

TCC:

SHC:

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