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5310-00-208-3041

Square Plain Nut

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Official Item Classification

Name
Square Plain Nut
(NSN) National Stock Number
5310-00-208-3041
(FSG) Federal Supply Group
53 Hardware and Abrasives
(FSC) Federal Supply Classification
5310 Nuts and Washers
(INC) Item Name Code
01858
(FIIG) Federal Item Identification Guide
A021A0
Date
01/01/1963 (63 years ago)

square nut style, right-hand thread direction, 0.203 inches minimum and 0.235 inches maximum nut height, 2b thread class, 0.425 inches minimum and 0.4375 inches maximum width across flats

Specs & Compatibility

Thread Class

2b

Thread Direction

right-hand

Nut Style

square

Nut Height

0.203 inches minimum and 0.235 inches maximum

Width Across Flats

0.425 inches minimum and 0.4375 inches maximum

Thread Series

unc

Thread Quantity Per Inch

20

Nominal Thread Size

0.250 inches

Bearing Surface Type

washer faced

Material

steel overall

Nondefinitive Spec/Std Data

b-2 type and c class

Regulatory Compliance

Precious Metals Indicator
U

Precious metal content is unknown

Criticality Code
X

The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Hazardous Metals Indicator
N

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

Source of Supply Code

S9I

Pseudo Item Name Code

0001858

Related Hardware Products

Part Number Description
FFB571TYPEB2CLASSC Square Plain Nut

Frequently Asked Questions

What is the FSCG of the NSN 5310-00-208-3041?
The FSCG of the NSN 5310-00-208-3041 is 5310
Does the NSN 5310-00-208-3041 have a Schedule B code assigned?
Yes, the Schedule B code is 7318160000
Does NSN 5310-00-208-3041 require demilitarization?
Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.
Does NSN 5310-00-208-3041 contain precious materials?
Precious metal content is unknown
Does NSN 5310-00-208-3041 contain hazardous materials?
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
When the NSN 5310-00-208-3041 was assigned to the Federal Catalog?
It was assigned 63 years ago, on Tue, Jan 1, 1963