Model: AN939-12

Boss Elbow

Special Features:

Weapon system essential

Properties:

Thread Class
3b all ends
Maximum Operating Temp
-65.0 degrees fahrenheit 2nd response
Maximum Operating Temp
225.0 degrees fahrenheit 1st response
End Application
F/a-18 hornet aircraft
Connection Style
Gasket seal (boss) all ends
Leg Length
1.359 inches all ends
Connection Type
Threaded internal boss all ends
Thready Qty Per Inch (tpi)
12 all ends
Thread Size
1.062 inches all ends
Flow Angle
90.0 degrees
Criticality Code Justification
Feat
Material
Steel comp 1137 or steel comp 4140 or steel comp 4130 or steel comp 1141
Material Specification
66 federal standard single material response
Surface Treatment
Cadmium
Surface Treatment Specification
Qq-p-416, type 2, cl 2 federal specification single treatment response
Thread Series Designator
Un all ends
Specification Data
88044-an939 government standard
NSN
4730-00-277-1916
Part Number
AN939-12
Description
Elbow,boss
CAGE
00624

A fitting that forms an angle of less than 180 degrees (3.141 radians) from the straight flow. The boss connections have external and/or internal machine threads (straight threads other than pipe or hose series), and are 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 join two bosses or boss fittings on items such as tanks, housings, valve fittings, and the like. Excludes elbow, tube.

Part AN939-12 NSN 4730-00-277-1916

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
22676
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:
SX
CRITL:
Y

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.6000lbs
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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