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Hexagon Plain Nut NSN 5310-00-721-5940

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 5310-00-721-5940 NSN: 5310-00-721-5940

Features and Characteristics

Thread Class
2b
Thread Direction
Right-hand
Nut Style
Hexagon
Nut Height
Between 0.365 inches and 0.385 inches
Width Across Flats
Between 0.6750 inches and 0.6875 inches
Thread Series
Unf
Thready Qty Per Inch (tpi)
20
Hardness Rating
121.0 brinell standard
Thread Size
0.438 inches
Bearing Surface Type
Chamfered or washer faced
Material
Steel
Surface Treatment
Cadmium or zinc
Surface Treatment Specification
Qq-p-416, type 2 cl 3 federal specification 1st treatment response or qq-z-325, ty2 cl 3 federal specification 2nd treatment response
FSC
5310 Nuts And Washers
NIIN
007215940
NSN
5310007215940

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
MS35690-725
Cage Code:
96906
Status:
A
MSDS:
Part Number:
FFN836GR0UPBTYPE1STYLE1GRADEB
Cage Code:
81348
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 5310-00-721-5940
What are the manufacturers of nsn 5310007215940?
Does this nsn 5310007215940 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310007215940
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 5310007215940 contain any precious metals?
Precious metal content is unknown.
Does nsn 5310007215940 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310007215940?
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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  •   Certificate of Conformance
  •   Quality Inspected Parts
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