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Square Plain Nut NSN 5310-00-312-1050

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 5310-00-312-1050 NSN: 5310-00-312-1050

Features and Characteristics

Thread Class
2b
Thread Direction
Right-hand
Nut Style
Square
Nut Height
Between 0.498 inches and 0.499 inches
Width Across Flats
1.250 inches
Thread Series
Unf
Thready Qty Per Inch (tpi)
16
Hardness Rating
Between 30.0 rockwell c and 35.0 rockwell c
Thread Size
0.750 inches
Bearing Surface Type
Chamfered or washer faced
Bearing Surface Finish
125.0 microinches
Material
Steel comp 4140 or steel
Material Specification
Qq-s-624 federal specification single material response or qq-s-624, com+41l40 federal specification single material response
Surface Treatment
Phosphate
Surface Treatment Specification
Mil-p-16232, ty m, cl1 military specification single treatment response or mil-p-16232, ty z, cl1 military specification single treatment response
FSC
5310 Nuts And Washers
NIIN
003121050
NSN
5310003121050

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
139C6511-2
Cage Code:
05606
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 5310-00-312-1050
What are the manufacturers of nsn 5310003121050?
Does this nsn 5310003121050 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310003121050
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 5310003121050 contain any precious metals?
Precious metal content is unknown.
Does nsn 5310003121050 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310003121050?
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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  •   Certificate of Conformance
  •   Quality Inspected Parts
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