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Hexagon Plain Nut NSN 5310-00-031-0257

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 5310-00-031-0257 NSN: 5310-00-031-0257

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Features and Characteristics

Thread Class
2b
Thread Direction
Right-hand
Nut Style
Hexagon
Nut Height
Between 1.245 inches and 1.317 inches
Width Across Flats
Between 2.175 inches and 2.250 inches
Thread Series
Unc
Thready Qty Per Inch (tpi)
6
Thread Size
1.500 inches
Bearing Surface Type
Chamfered or washer faced
Material
Nickel alloy
Special Test Features
Special quality control testing
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.).
Nondefinitive Specification/std Data
2 type and 4 style
Departure From Cited Designator
As modified by material which must conform to ships parts control center special quality control provisions
FSC
5310 Nuts And Washers
NIIN
000310257
NSN
5310000310257

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
FFN836
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: 7508900000
  • NAICS: 332999
  • SITC: 69975
  • Description: Other articles of nickel, nesoi (excluding cloth, grill & netting of nickel wire)
  • End Use (Code 12300):
    Finished metal shapes

Q & A

Frequently asked questions for NSN 5310-00-031-0257
What are the manufacturers of nsn 5310000310257?
Does this nsn 5310000310257 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310000310257
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 5310000310257 contain any precious metals?
Precious metal content is unknown.
Does nsn 5310000310257 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310000310257?
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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