Model: MIL-F-18866

Pipe To Boss Straight Adapter

Properties:

Thread Class
2a 2nd end
Maximum Operating Temp
121.0 degrees fahrenheit single response
Connection Style
Flared w/ gasket seal (boss) 2nd end
Connection Style
Plain (pipe) 1st end
Connection Type
Threaded external boss 2nd end
Connection Type
Threaded internal pipe 1st end
Thready Qty Per Inch (tpi)
12 2nd end
Maximum Operating Pressure
3000.0 pounds per square inch single response
Thread Size
0.750 inches 1st end
Thread Size
1.062 inches 2nd end
Nominallength
0.260 inches
Material
Stainless steel
Material Specification
Mil-f-18866 military specification single material response
Media For Which Designed
Hydraulic fluid single response
Surface Treatment
Passivate inside
Surface Treatment Specification
Qq-p-35, type 2 federal specification single treatment response inside
Thread Series Designator
Nptf 1st end
Thread Series Designator
Un 2nd end
Specification Data
81349-mil-f-18866 government specification and 96906-ms51503 government standard
Nondefinitive Specification/std Data
1 class and 1 type and 2 style
NSN
4730-00-628-0670
Part Number
MIL-F-18866
Description
Adapter,straight,pipe To Boss
CAGE
81349

An adapter having standard pipe threads on one end or an unthreaded end designed to accommodate a pipe. 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 pipe or pipe fitting to a boss or boss fitting in a straight line on items such as tanks, housing, valve fittings, or the like. See also adapter bushing and coupling, pipe.

Part MIL-F-18866 NSN 4730-00-628-0670

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
22674
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

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Schedule B and Export
  • Schedule B: 7307290000
  • SITC: 67956
  • End Use: Iron and steel products, other
  • NAICS: 332919
  • USDA: 1

Freight Class: Stainless steel tube or pipe fittings nesoi

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