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Hexagon Plain Nut NSN 5310-01-389-1721

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 5310-01-389-1721 NSN: 5310-01-389-1721

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Features and Characteristics

Thread Class
2b
Thread Direction
Right-hand
Nut Style
Hexagon
Nut Height
Between 0.210 inches and 0.227 inches
Width Across Flats
Between 0.551 inches and 0.562 inches
Thread Series
Unf
Thready Qty Per Inch (tpi)
24
Thread Size
0.375 inches
Bearing Surface Type
Chamfered
Material
Steel
Surface Treatment
Zinc and chromate
Surface Treatment Specification
Astm b633 ty2 assn standard single treatment response
Nondefinitive Specification/std Data
2 type and 4 style
FSC
5310 Nuts And Washers
NIIN
013891721
NSN
5310013891721

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
FF-N-836
Cage Code:
81348
Status:
A
MSDS:
Part Number:
12387303-21
Cage Code:
19207
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 5310-01-389-1721
What are the manufacturers of nsn 5310013891721?
Does this nsn 5310013891721 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310013891721
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 5310013891721 contain any precious metals?
No precious metal content.
Does nsn 5310013891721 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310013891721?
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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