5305-01-155-9788

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Hexagon Head Cap Screw

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Official Item Classification

Name: Hexagon Head Cap Screw
(NSN) National Stock Number: 5305-01-155-9788
(FSG) Federal Supply Group: 53 Hardware and Abrasives
(FSC) Federal Supply Classification: 5305 Screws
(INC) Item Name Code: 18257
(FIIG) Federal Item Identification Guide: A003B0
Date: 06/17/1983 (43 years ago)

hexagon head style, 2a thread class, 7.960 inches minimum and 8.040 inches maximum fastener length, 1.830 inches minimum and 1.950 inches maximum thread length, right-hand thread direction

Specs & Compatibility

Thread Class

Thread Direction

right-hand

Thread Length

1.830 inches minimum and 1.950 inches maximum

Fastener Length

7.960 inches minimum and 8.040 inches maximum

Head Style

hexagon

Head Height

0.690 inches nominal

Width Between Flats

1.500 inches nominal

Nominal Thread Diameter

1.000 inches

Thread Quantity Per Inch

Surface Finish

62.0 microinches grip

Special Features

undercut between shank and threads 0.380 in. wide 0.800 in. dia

Material

nickel alloy k-500 overall

Material Document And Classification

qq-n-286 cl a fed spec single material response overall

Thread Series Designator

unc

Regulatory Compliance

Precious Metals Indicator

Item does not contain precious metal.

Criticality Code

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

Hazardous Metals Indicator

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

0018257

Related Hardware Products

Part Number	Description
518-4674802 ITEM 10	Hexagon Head Cap Screw

Frequently Asked Questions

What is the FSCG of the NSN 5305-01-155-9788?

The FSCG of the NSN 5305-01-155-9788 is 5305

Does the NSN 5305-01-155-9788 have a Schedule B code assigned?

Yes, the Schedule B code is 7508900000

Does NSN 5305-01-155-9788 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 5305-01-155-9788 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-155-9788 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 5305-01-155-9788 was assigned to the Federal Catalog?

It was assigned 43 years ago, on Fri, Jun 17, 1983