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FFB571TYPEA3 Hexagon Plain Nut

5310-00-208-3765

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Official Item Classification

Name
Hexagon Plain Nut
Part Number
FFB571TYPEA3
(NSN) National Stock Number
5310-00-208-3765
(FSG) Federal Supply Group
53 Hardware and Abrasives
(FSC) Federal Supply Classification
5310 Nuts and Washers
(INC) Item Name Code
01857
(FIIG) Federal Item Identification Guide
A021A0
Date
01/01/1963 (63 years ago)

0.625 inches nominal width across flats, 2b thread class, hexagon nut style, 0.328 inches nominal nut height, right-hand thread direction

Specs & Compatibility

Thread Class

2b

Thread Direction

right-hand

Nut Style

hexagon

Nut Height

0.328 inches nominal

Width Across Flats

0.625 inches nominal

Thread Series

unf

Thread Quantity Per Inch

24

Nominal Thread Size

0.375 inches

Bearing Surface Type

washer faced

Material

steel overall

Surface Treatment

chromate zinc overall

Nondefinitive Spec/Std Data

a3 type

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.

Pseudo Item Name Code

0001857

Related Hardware Products

Part Number Description
FFB571TYPEA3 Hexagon Plain Nut

Frequently Asked Questions

What is the FSCG of the NSN 5310-00-208-3765?
The FSCG of the NSN 5310-00-208-3765 is 5310
Does the NSN 5310-00-208-3765 have a Schedule B code assigned?
Yes, the Schedule B code is 7318160000
Does NSN 5310-00-208-3765 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 5310-00-208-3765 contain precious materials?
Precious metal content is unknown
Does NSN 5310-00-208-3765 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 5310-00-208-3765 was assigned to the Federal Catalog?
It was assigned 63 years ago, on Tue, Jan 1, 1963