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Square Plain Nut NSN 5310-01-203-0242

Item Description

A nut, flat on top and bottom, having 4 flat sides. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)

NSN 5310-01-203-0242 NSN: 5310-01-203-0242

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Features and Characteristics

Thread Class
2b
Thread Direction
Right-hand
Nut Style
Square
Nut Height
0.312 inches
Width Across Flats
0.250 inches
Thread Series
Unc
Thready Qty Per Inch (tpi)
32
Thread Size
0.138 inches
Criticality Code Justification
Zzzy
Bearing Surface Type
Flat
Material
Steel comp 303
Material Specification
Astm a581 assn standard single material response
Surface Treatment
Passivate
Special Test Features
Special quality control testing
Surface Treatment Specification
Qq-p-35 federal specification single treatment response
Test Data Document
81349-mil-p-23199 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).
Reference Number Differentiating Characteristics
As differentiated by material which must conform to ships parts control center special quality control provisions and certified free from mercury contamination
FSC
5310 Nuts And Washers
NIIN
012030242
NSN
5310012030242

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
KEL224A
Cage Code:
02750
Status:
A
MSDS:
Part Number:
8272-SS-0632-7
Cage Code:
1YGB8
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 7318160000
  • NAICS: 332722
  • SITC: 69421
  • Description: Nuts of iron or steel
  • End Use (Code 12300):
    Finished metal shapes

Q & A

Frequently asked questions for NSN 5310-01-203-0242
What are the manufacturers of nsn 5310012030242?
Does this nsn 5310012030242 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310012030242
A nut, flat on top and bottom, having 4 flat sides. for items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)
Does nsn 5310012030242 contain any precious metals?
No precious metal content.
Does nsn 5310012030242 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310012030242?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
01858
FIIG:
A021A0
App. Key:
AG
Cond. Code:
1
Status:
A

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