Model: 81HDS

Tube Coupling Nut

Properties:

Thread Class
2b
Thread Direction
Right-hand
Fabrication Method
Machined
Nut Height
0.625 inches
Width Across Flats
0.875 inches
Length To Shoulder
0.469 inches
Smallest Inside Diameter
0.506 inches
Thread Series
Uns
Thready Qty Per Inch (tpi)
18
Thread Size
0.750 inches
Tube Outside Diameter
0.500 inches
Material
Copper alloy or copper alloy 360
Material Specification
Qq-b-626 comp 11 federal specification 1st material response or qq-b-626 federal specification 2nd material response
NSN
4730-00-350-6974
Part Number
81HDS
Description
Nut,tube Coupling
CAGE
30327

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 81HDS NSN 4730-00-350-6974

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:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
052190
UFC:
30000
LTL:
RATING VARIABLE
LCL:
50.0
WCC:
576
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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