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5310-00-007-9941

Octagon Plain Nut

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Official Item Classification

Name
Octagon Plain Nut
(NSN) National Stock Number
5310-00-007-9941
(FSG) Federal Supply Group
53 Hardware and Abrasives
(FSC) Federal Supply Classification
5310 Nuts and Washers
(INC) Item Name Code
16979
(FIIG) Federal Item Identification Guide
A021A0
Date
07/09/1972 (54 years ago)

2.750 inches nominal nut counterbore diameter, plain, octagon nut style, 2b thread class, 0.485 inches nominal nut height, right-hand thread direction

Specs & Compatibility

Thread Class

2b

Thread Direction

right-hand

Counterbore Diameter

2.750 inches nominal nut

Nut Style

plain, octagon

Nut Height

0.485 inches nominal

Nut Counterbore Depth

0.093 inches nominal nut

Width Across Flats

3.812 inches nominal

Thread Series

un

Thread Quantity Per Inch

16

Nominal Thread Size

2.500 inches

Bearing Surface Type

chamfered

Special Features

one round protrusion on bearing surface

Material

steel 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.

Pseudo Item Name Code

0016979

Related Hardware Products

Part Number Description
11662296-7 Octagon Plain Nut
1227S877 Octagon Plain Nut
A1227S877 Octagon Plain Nut

Frequently Asked Questions

What is the FSCG of the NSN 5310-00-007-9941?
The FSCG of the NSN 5310-00-007-9941 is 5310
Does the NSN 5310-00-007-9941 have a Schedule B code assigned?
Yes, the Schedule B code is 7318160000
Does NSN 5310-00-007-9941 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 5310-00-007-9941 contain precious materials?
Precious metal content is unknown
Does NSN 5310-00-007-9941 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 5310-00-007-9941 was assigned to the Federal Catalog?
It was assigned 54 years ago, on Sun, Jul 9, 1972