Model: 520399

Tube To Boss Elbow

Properties:

Thread Class
3a 2nd end bulkhead
Thread Class
3a all ends
Connection Style
Double threaded section w/ gasket and locknut sealing (boss) 2nd end
Connection Style
Flared (tube) 1st end
Leg Length
1.234 inches 2nd end and 1.270 inches 2nd end
Leg Length
0.850 inches 1st end and 0.870 inches 1st end
Connection Type
Threaded external boss 2nd end bulkhead
Connection Type
Threaded external tube 1st end
Thread Size
0.438 inches 2nd end bulkhead
Thread Size
0.562 inches 1st end
Seat Angle
37.0 degrees 1st end
Flow Angle
90.0 degrees
Outside Diameter Tube Accommodated
0.375 inches 1st end
Material
Stainless steel
Media For Which Designed
Aeronautical fluid 2nd response
Media For Which Designed
Hydraulic fluid 1st response
Surface Treatment
Passivate
Thread Series Designator
Unf 2nd end bulkhead
Thread Series Designator
Unf all ends
NSN
4730-00-904-3373
Part Number
520399
Description
Elbow,tube To Boss
CAGE
77445

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 520399 NSN 4730-00-904-3373

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:
U
ESD:
ESD:
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.1000lbs
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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Phone: +1 470-231-0824
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Schedule B and Export
  • Schedule B: 7307225000
  • SITC: 67954
  • End Use: Iron and steel products, other
  • NAICS: 332919
  • USDA: 1

Freight Class: Stainless steel pipe elbows and bends

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