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5310-01-256-8093

Hexagon Self-Locking Nut

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Official Item Classification

Name
Hexagon Self-Locking Nut
(NSN) National Stock Number
5310-01-256-8093
(FSG) Federal Supply Group
53 Hardware and Abrasives
(FSC) Federal Supply Classification
5310 Nuts and Washers
(INC) Item Name Code
05277
(FIIG) Federal Item Identification Guide
A021A0
Date
06/09/1987 (39 years ago)

0.821 inches nominal nut height, 3b thread class, 1.973 inches minimum and 2.008 inches maximum width across flats, right-hand thread direction, unjf thread series

Specs & Compatibility

Thread Class

3b

Thread Direction

right-hand

Nut Height

0.821 inches nominal

Width Across Flats

1.973 inches minimum and 2.008 inches maximum

Thread Series

unjf

Thread Quantity Per Inch

12

Hardness Rating

36.0 rockwell c minimum and 40.0 rockwell c maximum

Nominal Thread Size

1.375 inches

Special Features

distorted threads

Material

steel comp 4140 or steel comp 4340 overall

Regulatory Compliance

Precious Metals Indicator
A

Item does not contain precious metal.

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

0005277

Related Hardware Products

Part Number Description
206-011-119-005 Hexagon Self-Locking Nut
206-011-119-3 Hexagon Self-Locking Nut
75368-2212 Hexagon Self-Locking Nut

Frequently Asked Questions

What is the FSCG of the NSN 5310-01-256-8093?
The FSCG of the NSN 5310-01-256-8093 is 5310
Does the NSN 5310-01-256-8093 have a Schedule B code assigned?
Yes, the Schedule B code is 7318160000
Does NSN 5310-01-256-8093 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 5310-01-256-8093 contain precious materials?
Item does not contain precious metal.
Does NSN 5310-01-256-8093 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 5310-01-256-8093 was assigned to the Federal Catalog?
It was assigned 39 years ago, on Tue, Jun 9, 1987