Model: 56153-1-4-9

Union Nut

Properties:

Thread Direction
Right-hand
Shoulder Width
0.250 inches
Nut Style
Hexagon
Nut Height
1.312 inches
Width Across Flats
Between 1.575 inches and 1.625 inches
Smallest Inside Diameter
0.872 inches
Thread Series
Unef
Shoulder Step Width
0.375 inches
Thready Qty Per Inch (tpi)
18
Thread Size
1.250 inches
Material
Steel comp 1018
Material Specification
Qq-s-634 federal specification single material response
Surface Treatment
Silver
Surface Treatment Specification
Ams 2412 assn standard single treatment response
NSN
4730-01-006-1730
Part Number
56153-1-4-9
Description
Nut,union
CAGE
00624

An internally threaded nut which has an internal seat or shoulder designed to engage the nut retaining flange of a union tailpiece. The threaded portion is used to engage the thread piece of a union, union elbor or the like. Excludes nut (1), tube coupling.

Part 56153-1-4-9 NSN 4730-01-006-1730

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
19964
FIIG:
A021A0
Concept No.:
1
App. Key:
DB
Cond. Code:
2
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
S
ESD:
ESD:
MMAC:
CRITL:
X

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Schedule B and Export
  • Schedule B: 7318160000
  • SITC: 69421
  • End Use: Finished metal shapes
  • NAICS: 332722
  • USDA: 1

Freight Class: Nuts of iron or steel

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