Model: WWP521

Pipe Coupling

Properties:

Pipe Size Accommodated
0.250 inches all ends
Maximum Operating Temp
148.0 degrees fahrenheit 1st response
Maximum Operating Temp
500.0 degrees fahrenheit 2nd response
Connection Style
Plain (pipe) all ends
Connection Type
Threaded internal pipe all ends
Maximum Operating Pressure
150.0 pounds per square inch 1st response
Maximum Operating Pressure
300.0 pounds per square inch 2nd response
Thread Size
0.250 inches 1st end
Nominallength
1.060 inches
Material
Iron or iron alloy
Material Specification
Astm a197 assn standard single material response
Media For Which Designed
Steam 2nd response
Media For Which Designed
Water-oil-gas 1st response
Style Designator
Plain
Thread Series Designator
Npt all ends
Specification Data
81348-ww+521 government specification
Nondefinitive Specification/std Data
1 type
NSN
4730-00-639-9167
Part Number
WWP521
Description
Coupling,pipe
CAGE
81348

A straight fitting 12 inches (304 mm) long or under having the same or different type pipe connection of the same size on both ends. It is designed to join a pipe or pipe fitting to another pipe or pipe fitting. Excludes fittings with threaded external connections on both ends. See also nipple, pipe.

Part WWP521 NSN 4730-00-639-9167

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
06076
FIIG:
A080B0
Concept No.:
App. Key:
A
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:
N
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:
Q
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
052190
UFC:
30000
LTL:
RATING VARIABLE
LCL:
--
WCC:
576
TCC:
Z
SHC:
9
ACC:
Construction Materials

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Schedule B and Export
  • Schedule B: 7307992000
  • SITC: 67959
  • End Use: Iron and steel products, other
  • NAICS: 332919
  • USDA: 1

Freight Class: Other fittings nesoi of iron or nonalloy steel

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