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5310-00-596-5531

Nut,plain,castellated,hexagon

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Official Item Classification

Name
Nut,plain,castellated,hexagon
(NSN) National Stock Number
5310-00-596-5531
(FSG) Federal Supply Group
53 Hardware and Abrasives
(FSC) Federal Supply Classification
5310 Nuts and Washers
(INC) Item Name Code
01854
(FIIG) Federal Item Identification Guide
A021A0
Date
01/01/1963 (63 years ago)

3b thread class, 0.428 inches minimum and 0.440 inches maximum width across flats, 0.266 inches minimum and 0.297 inches maximum nut height, castellated, hexagon nut style, right-hand thread direction

Specs & Compatibility

Thread Class

3b

Thread Direction

right-hand

Nut Style

castellated, hexagon

Nut Height

0.266 inches minimum and 0.297 inches maximum

Width Across Flats

0.428 inches minimum and 0.440 inches maximum

Thread Series

unf

Thread Quantity Per Inch

28

Nominal Thread Size

0.250 inches

Countersink Angle

109.0 degrees minimum and 111.0 degrees maximum nut

Bearing Surface Type

washer faced

Bearing Surface Finish

125.0 microinches

Material

nickel alloy x-750 overall

Material Document And Classification

ams 5667 assn std single material response overall

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

0001854

Related Hardware Products

Part Number Description
1N8-4 Nut,plain,castellated,hexagon

Frequently Asked Questions

What is the FSCG of the NSN 5310-00-596-5531?
The FSCG of the NSN 5310-00-596-5531 is 5310
Does the NSN 5310-00-596-5531 have a Schedule B code assigned?
Yes, the Schedule B code is 7508900000
Does NSN 5310-00-596-5531 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 5310-00-596-5531 contain precious materials?
Precious metal content is unknown
Does NSN 5310-00-596-5531 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 5310-00-596-5531 was assigned to the Federal Catalog?
It was assigned 63 years ago, on Tue, Jan 1, 1963