Model: 452

Tube Coupling Nut

Properties:

Thread Class
2b
Thread Direction
Right-hand
Fabrication Method
Forged
Nut Style
Tube coupling
Nut Height
0.590 inches
Width Across Flats
0.625 inches
Length To Shoulder
0.440 inches
Smallest Inside Diameter
Between 0.255 inches and 0.260 inches
Thread Series
Unf
Thready Qty Per Inch (tpi)
20
Thread Size
0.438 inches
Tube Outside Diameter
0.250 inches
Seat Angle
45.0 degrees
Material
Copper alloy 377
Material Specification
Qq-b-611 federal specification single material response
Specification Data
81343-j513 professional/industrial association standard
Nondefinitive Specification/std Data
36a figure
NSN
4730-00-189-2737
Part Number
452
Description
Nut,tube Coupling
CAGE
66935

An internally threaded nut which has either an internal seat or shoulder and/or is designed to be used with a ferrule, to mate with the seat of an externally threaded tube fitting to form a leakproof connection. Excludes nut (1), tube coupling, reducing; and nut (1), union.

Part 452 NSN 4730-00-189-2737

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
03859
FIIG:
A021A0
Concept No.:
1
App. Key:
CX
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:
0.5000lbs
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:
093460
UFC:
48930
LTL:
70.0
LCL:
--
WCC:
713
TCC:
Z
SHC:
9
ACC:
Construction Materials

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Schedule B and Export
  • Schedule B: 7415290000
  • SITC: 69432
  • End Use: Finished metal shapes
  • NAICS: 332722
  • USDA: 1

Freight Class: Copper screws, nuts, bolts, rivets, and other fasteners not threaded

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