Model: 74121S

Expansion Plug

Properties:

Radius
1.625 inches
Outside Diameter
1.250 inches
Material Thickness
0.081 inches
Material
Copper alloy
Style Designator
A4 concave
Style Designator
Concave
NSN
5340-00-282-7383
Part Number
74121S
Description
Plug,expansion
CAGE
57526

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 74121S NSN 5340-00-282-7383

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:
SX
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.1000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
E
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
095190
UFC:
49790
LTL:
RATING VARIABLE
LCL:
--
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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