Model: B81-6-305

Tube Reducer

Properties:

Thread Class
2a 2nd end
Thread Class
2b 1st end
Reducer Type
Concentric
Connection Style
Flared (tube) 1st end
Connection Style
Inverted flare (tube) 2nd end
Connection Type
Threaded external tube 2nd end
Connection Type
Threaded internal tube 1st end
Thread Size
0.562 inches 2nd end
Thread Size
0.625 inches 1st end
Seat Angle
30.0 degrees 2nd end
Seat Angle
45.0 degrees 1st end
Outside Diameter Tube Accommodated
0.375 inches 1st end
Outside Diameter Tube Accommodated
0.438 inches 2nd end
Nominallength
1.188 inches
Material
Copper alloy 360
Material Specification
Qq-b-626, comp 22 federal specification single material response
Thread Series Designator
Unf 1st end
Thread Series Designator
Unf 2nd end
NSN
4730-00-540-0206
Part Number
B81-6-305
Description
Reducer,tube
CAGE
81361

A straight tube fitting having a different size connection on each end. It is designed to join two tubes of different sizes. Excludes bushing (as modified).

Part B81-6-305 NSN 4730-00-540-0206

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
08506
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:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
052185
UFC:
29950
LTL:
RATING VARIABLE
LCL:
--
WCC:
576
TCC:
Z
SHC:
9
ACC:
Construction Materials

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Schedule B and Export
  • Schedule B: 7412200000
  • SITC: 68272
  • End Use: Finished metal shapes
  • NAICS: 332919
  • USDA: 1

Freight Class: Copper alloy tube or pipe fittings

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