Model: R544-8

Tube To Boss Straight Adapter

Properties:

Thread Class
2a 1st end
Thread Class
3a 2nd end
Connection Style
External seat for gasket seal (boss) 2nd end
Connection Style
Inverted flare (tube) 1st end
Connection Type
Threaded external boss 2nd end
Connection Type
Threaded external tube 1st end
Thready Qty Per Inch (tpi)
18 1st end
Thread Size
0.750 inches 2nd end
Thread Size
0.875 inches 1st end
Seat Angle
30.0 degrees 1st end
Outside Diameter Tube Accommodated
0.675 inches 1st end
Nominallength
1.281 inches
Material
Steel
Surface Treatment
Cadmium
Thread Series Designator
Unf 2nd end
Thread Series Designator
Uns 1st end
Furnished Items And Quantity
1 preformed packing and 1 tube coupling nut
NSN
4730-00-198-6780
Part Number
R544-8
Description
Adapter,straight,tube To Boss
CAGE
70026

An adapter having machine threads (straight threads other than pipe or hose series) designed to accommodate a tube on one end or an unthreaded end designed to accommodate a tube. The other end has external or internal machine threads (straight threads other than pipe or hose series) and is designed to facilitate a gasket, preformed packing, washer, or the like to form a seal at the boss. It is designed to join a tube or tube fitting to a boss or boss fitting in a straight line on items such as tanks, housings, valve fittings, and the like. See also coupling, tube and nipple, tube.

Part R544-8 NSN 4730-00-198-6780

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
22675
FIIG:
A080B0
Concept No.:
1
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:
051420
UFC:
29090
LTL:
RATING VARIABLE
LCL:
--
WCC:
576
TCC:
Z
SHC:
9
ACC:
Construction Materials

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Schedule B and Export
  • Schedule B: 7307992000
  • SITC: 67959
  • End Use: Iron and steel products, other
  • NAICS: 332919
  • USDA: 1

Freight Class: Other fittings nesoi of iron or nonalloy steel

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