Model: B81-3-61

Tube Reducer

Special Features:

Seat surface of both ends 63 microinch rms finish

Properties:

Thread Class
2a 1st end
Thread Class
2a 2nd end
Reducer Type
Concentric
Connection Style
Inverted flare (tube) 1st end
Connection Style
Inverted flare (tube) 2nd end
Connection Type
Threaded external tube 1st end
Connection Type
Threaded external tube 2nd end
Thread Size
0.500 inches 2nd end
Thread Size
0.750 inches 1st end
Seat Angle
45.0 degrees 1st end
Seat Angle
45.0 degrees 2nd end
Outside Diameter Tube Accommodated
0.312 inches 2nd end
Outside Diameter Tube Accommodated
0.500 inches 1st end
Nominallength
1.500 inches
Material
Copper alloy 360
Material Specification
Qq-b-626, comp 22 federal specification single material response
Thread Series Designator
Unc 2nd end
Thread Series Designator
Unf 1st end
NSN
4730-00-516-4444
Part Number
B81-3-61
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 B81-3-61 NSN 4730-00-516-4444

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

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:
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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