Model: MIL-F-5509

Boss Elbow

Properties:

Thread Class
3b all ends
Maximum Operating Temp
225.0 degrees fahrenheit single response
End Application
Used on sikorsky cargo transport helicopter, ch-54a and ch-54b
Connection Style
Gasket seal (boss) all ends
Leg Length
1.062 inches 2nd end
Leg Length
1.000 inches 1st end
Connection Type
Threaded internal boss all ends
Maximum Operating Pressure
3000.0 pounds per square inch single response
Thread Size
0.750 inches all ends
Flow Angle
90.0 degrees
Material
Steel comp 1137 or steel comp 1141
Surface Treatment
Cadmium and chromate or oxide
Thread Series Designator
Unf all ends
Specification Data
88044-an939 government standard and 81343-as4875 professional/industrial association standard
NSN
4730-00-640-0618
Part Number
MIL-F-5509
Description
Elbow,boss
CAGE
81349

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 MIL-F-5509 NSN 4730-00-640-0618

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:
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:
M
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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