Model: 51-17-21

Pipe To Tube Elbow

Properties:

Thread Class
3a 1st end
Connection Style
Flareless (tube) 1st end
Connection Style
Plain (pipe) 2nd end
Leg Length
0.750 inches all ends
Connection Type
Threaded external tube 1st end
Connection Type
Threaded internal pipe 2nd end
Thread Size
0.125 inches 2nd end
Thread Size
0.438 inches 1st end
Seat Angle
20.0 degrees 1st end
Flow Angle
90.0 degrees
Outside Diameter Tube Accommodated
0.250 inches 1st end
Material
Steel comp 316
Surface Treatment
Passivate
Thread Series Designator
Npt 2nd end
Thread Series Designator
Unf 1st end
Furnished Items And Quantity
1 tube coupling nut w/sleeve
NSN
4730-00-793-2696
Part Number
51-17-21
Description
Elbow,pipe To Tube
CAGE
31949

A fitting that forms an angle of less than 180 degrees (3.142 radians) from the straight flow. One connecting end has standard pipe threads, or is unthreaded and designed to accommodate a pipe. The other 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. It may have side or heel inlet(s). See also elbow, pipe; elbow, tube; and connector, multiple, fluid pressure line.

Part 51-17-21 NSN 4730-00-793-2696

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
03770
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:
0.1000lbs
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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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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