Model: ST7M257-550H312

Tube Coupling

Properties:

Maximum Operating Temp
-65.0 degrees fahrenheit 1st response
Maximum Operating Temp
500.0 degrees fahrenheit 2nd response
Connection Style
Plain (tube) all ends
Connection Type
Unthreaded internal tube all ends
Maximum Operating Pressure
45.0 pounds per square inch single response
Outside Diameter Tube Accommodated
5.590 inches all ends
Tubing Wall Thickness For Which Designed
0.035 inches all ends
Nominallength
3.120 inches
Material
Stainless steel
Material Specification
Mil-s-6721, type 321 military specification single material response or mil-t-8808 military specification single material response
Media For Which Designed
Aeronautical fluid single response
Surface Treatment
Passivate
Surface Treatment Specification
Mil-s-5002 military specification single treatment response
Style Designator
Plain w/tapered ends
NSN
4730-01-070-3393
Part Number
ST7M257-550H312
Description
Coupling,tube
CAGE
76301

A straight fitting 12 inches (304 mm) long or under having the same or different type of connection of the same size on both ends. It is designed to join a tube or tube fitting to another tube or tube fitting. Excludes fittings with threaded external connections on both ends. Excludes nipple, pipe.

Part ST7M257-550H312 NSN 4730-01-070-3393

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
06078
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:
0.9000lbs
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: 7307290000
  • SITC: 67956
  • End Use: Iron and steel products, other
  • NAICS: 332919
  • USDA: 1

Freight Class: Stainless steel tube or pipe fittings nesoi

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