Model: 78178R91

Tube Reducer

Properties:

Thread Class
2a 1st end
Thread Class
3a 2nd end
Reducer Type
Concentric
Connection Style
Flareless (tube) 2nd end
Connection Style
Inverted flare (tube) 1st end
Connection Type
Threaded external tube 2nd end
Connection Type
Threaded internal tube 1st end
Thready Qty Per Inch (tpi)
20 1st end
Thready Qty Per Inch (tpi)
24 2nd end
Thread Size
0.438 inches 2nd end
Thread Size
0.500 inches 1st end
Seat Angle
42.0 degrees 1st end
Outside Diameter Tube Accommodated
0.312 inches all ends
Nominallength
1.000 inches
Material
Copper alloy
Media For Which Designed
Hydraulic fluid single response
Thread Series Designator
Uns all ends
NSN
4730-00-317-3877
Part Number
78178R91
Description
Reducer,tube
CAGE
89346

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 78178R91 NSN 4730-00-317-3877

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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