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Hexagon Plain Nut NSN 5310-01-250-0643

Item Description

A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. 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 5310-01-250-0643 NSN: 5310-01-250-0643

Features and Characteristics

Thread Class
2b
Thread Direction
Right-hand
Nut Style
Hexagon
Nut Height
0.187 inches
Drilled Hole Diameter
Between 0.088 inches and 0.093 inches
Hole Type And Quantity
4 drilled
Width Across Flats
Between 0.613 inches and 0.625 inches
Thread Series
Uns
Thready Qty Per Inch (tpi)
64
Thread Size
0.375 inches
Hole Configuration Style
Configuration b
Bearing Surface Type
Chamfered
Part Name Assigned By Controlling Agency
Navy special project
Special Features
Two c'bore holes drilled through face of nut
Material
Steel comp 630
Material Specification
Ams 5643 assn standard single material response
Surface Treatment
Passivate
Surface Treatment Specification
Qq-p-35, type 1 federal specification single treatment response
FSC
5310 Nuts And Washers
NIIN
012500643
NSN
5310012500643

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
NWC78A342
Cage Code:
12934
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 5310-01-250-0643
What are the manufacturers of nsn 5310012500643?
Does this nsn 5310012500643 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310012500643
A nut, flat on top and bottom having 6 flat sides. for items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. see also locknut, tube fitting. 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 5310012500643 contain any precious metals?
No precious metal content.
Does nsn 5310012500643 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310012500643?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
01857
FIIG:
A021A0
App. Key:
AG
Cond. Code:
1
Status:
A

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