Model: 4-2 HBZ-B-C3

Tube Reducer

Special Features:

Next assembly: 3307374-1; used on 3301271-6101; note: oxygen clean part

Properties:

Thread Class
3a 1st end
Reducer Type
Concentric
End Application
Support eqmt, b-2 bomber
Connection Style
Flareless (tube) all ends
Connection Type
Threaded external tube all ends
Thready Qty Per Inch (tpi)
20 1st end
Thready Qty Per Inch (tpi)
24 2nd end
Thread Size
0.312 inches 2nd end
Thread Size
0.438 inches 1st end
Seat Angle
20.0 degrees all ends
Outside Diameter Tube Accommodated
0.125 inches 2nd end
Outside Diameter Tube Accommodated
0.250 inches 1st end
Nominallength
0.969 inches
Part Name Assigned By Controlling Agency
Nipple, tube
Material
Copper alloy
Thread Series Designator
Unf 1st end
Thread Series Designator
Unf 2nd end
NSN
4730-01-529-0751
Part Number
4-2 HBZ-B-C3
Description
Reducer,tube
CAGE
54938

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 4-2 HBZ-B-C3 NSN 4730-01-529-0751

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:
A
ESD:
A
ESD:
A
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
4.0 X 0.0 X 0.0
Paclk Weight:
--
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: 7412200000
  • SITC: 68272
  • End Use: Finished metal shapes
  • NAICS: 332919
  • USDA: 1

Freight Class: Copper alloy tube or pipe fittings

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