Model: 2670-57 ITEM 13

Tube To Boss Straight Adapter

Special Features:

For navy nuclear propulsion plant products only

Properties:

Thread Class
2a 2nd end
Connection Type
Threaded external boss 2nd end
Connection Type
Unthreaded internal tube 1st end
Thready Qty Per Inch (tpi)
20 2nd end
Maximum Operating Pressure
700.0 pounds per square inch single response
Thread Size
1.594 inches 2nd end
Criticality Code Justification
Zzzy
Outside Diameter Tube Accommodated
1.125 inches 1st end
Nominallength
1.330 inches
Material
Copper alloy
Thread Series Designator
Uns 2nd end
Reference Number Differentiating Characteristics
As differentiated by free from mercury contamination
NSN
4730-01-175-5443
Part Number
2670-57 ITEM 13
Description
Adapter,straight,tube To Boss
CAGE
43689

An adapter having machine threads (straight threads other than pipe or hose series) designed to accommodate a tube on one end or an unthreaded end 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 is designed to join a tube or tube fitting to a boss or boss fitting in a straight line on items such as tanks, housings, valve fittings, and the like. See also coupling, tube and nipple, tube.

Part 2670-57 ITEM 13 NSN 4730-01-175-5443

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
22675
FIIG:
A080B0
Concept No.:
1
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:
CRITL:
C

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
3.0 X 3.0 X 3.0
Paclk Weight:
0.4000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
M
SPI No.:
SPI Rev.:
SPC Mkg:
99
LVL_A:
E
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
052185
UFC:
29950
LTL:
RATING VARIABLE
LCL:
--
WCC:
576
TCC:
Z
SHC:
9
ACC:
Construction Materials

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Schedule B and Export
  • Schedule B: 7412200000
  • SITC: 68272
  • End Use: Finished metal shapes
  • NAICS: 332919
  • USDA: 1

Freight Class: Copper alloy tube or pipe fittings

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