Model: 12B9

Expansion Plug

Special Features:

Material is steel, federal standard no. 66; steel no.S 1008 to 1022

Properties:

Radius

Between 1.609 inches and 1.640 inches

Outside Diameter

Between 1.247 inches and 1.253 inches

Material Thickness

Between 0.078 inches and 0.088 inches

Material

Steel

Style Designator

A4 concave

NSN

5340-00-836-0647

Part Number

12B9

Description

Plug,expansion

CAGE

77237

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 12B9 NSN 5340-00-836-0647

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:

Packaging & Shipping

Est. Pack Size

Est. Pack Weight

Est. Item Weight

Est. Item Dim.

Pack Size:

Paclk Weight:

Item Weight:

Item Dim:

OPI

SPI No.

SPI Rev.

SPC Mkg.

LVL A

LVL B

OPI:

SPI No.:

SPI Rev.:

SPC Mkg:

LVL_A:

LVL_B:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

095190

UFC:

49790

LTL:

70.0

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