Model: 503-4556027ITEM39

Tube Reducer

Properties:

Thread Class
3a 2nd end
Thread Class
3b 1st end
Reducer Type
Concentric
Connection Style
Flared (tube) 1st end
Connection Style
Flared (tube) 2nd end
Connection Type
Threaded external tube 2nd end
Connection Type
Threaded internal tube 1st end
Thread Size
0.438 inches 2nd end
Thread Size
0.750 inches 1st end
Seat Angle
45.0 degrees all ends
Criticality Code Justification
Zzzy
Outside Diameter Tube Accommodated
0.250 inches 2nd end
Outside Diameter Tube Accommodated
0.500 inches 1st end
Nominallength
1.375 inches
Material
Copper alloy 360
Thread Series Designator
Unf all ends
Specification Data
81343-j513 professional/industrial association standard
Nondefinitive Specification/std Data
22 figure
Reference Number Differentiating Characteristics
Material will be in accordance with ships parts control center activity hx quality control, manufacturing and testing specifications
NSN
4730-01-160-5765
Part Number
503-4556027ITEM39
Description
Reducer,tube
CAGE
43689

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 503-4556027ITEM39 NSN 4730-01-160-5765

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:
ESD:
MMAC:
CRITL:
Y

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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