Model: MIL-DTL-18866

Tube To Boss Elbow

Properties:

Thread Class
2a all ends
Maximum Operating Temp
121.0 degrees celsius single response
Connection Style
Double threaded section w/ gasket and locknut sealing (boss) 2nd end
Connection Style
Flareless (tube) 1st end
Leg Length
1.580 inches 1st end
Leg Length
1.940 inches 2nd end
Connection Type
Threaded external boss 2nd end
Connection Type
Threaded external tube 1st end
Thready Qty Per Inch (tpi)
12 all ends
Thread Size
1.062 inches all ends
Seat Angle
12.0 degrees 1st end
Flow Angle
90.0 degrees
Outside Diameter Tube Accommodated
0.750 inches 1st end
Material
Steel
Material Specification
66 federal standard all material responses
Media For Which Designed
Air 2nd response
Media For Which Designed
Hydraulic fluid 1st response
Surface Treatment
Phosphate
Surface Treatment Specification
Mil-c-16232, type m, class 1 military specification single treatment response
Thread Series Designator
Un all ends
Furnished Items And Quantity
1 tube coupling nut w/sleeve and 1 preformed packing
Specification Data
96906-ms51839 government standard and 81343-j514 professional/industrial association standard
Nondefinitive Specification/std Data
27a figure
NSN
4730-00-727-9789
Part Number
MIL-DTL-18866
Description
Elbow,tube To Boss
CAGE
81349

A fitting that forms an angle of less that 180 degrees (3.141 radians) from a straight flow. One connecting end has machine threads (straight threads other than pipe or hose series) designed to accommodate a tube or is unthreaded and 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 may have side or heel inlet(s). It is designed to connect a tube or tube fitting to a boss or boss fitting on items such as tanks, housings, valve fittings, or the like.

Part MIL-DTL-18866 NSN 4730-00-727-9789

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
22679
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:
SX
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.3000lbs
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: 7307929000
  • SITC: 67959
  • End Use: Iron and steel products, other
  • NAICS: 332919
  • USDA: 1

Freight Class: Threaded elbows and bends of iron or steel (other than cast iron or stainless steel) for pipes and tubes

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