5305-00-285-5178

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Hexagon Head Cap Screw

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Official Item Classification

Name: Hexagon Head Cap Screw
(NSN) National Stock Number: 5305-00-285-5178
(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: 01/01/1963 (63 years ago)

1.219 inches minimum and 1.281 inches maximum fastener length, hexagon head style, 1.156 inches minimum and 1.281 inches maximum thread length, 2a thread class, right-hand thread direction

Specs & Compatibility

Thread Class

Thread Direction

right-hand

Thread Length

1.156 inches minimum and 1.281 inches maximum

Fastener Length

1.219 inches minimum and 1.281 inches maximum

Head Style

hexagon

Head Height

0.456 inches minimum and 0.481 inches maximum

Width Between Flats

0.860 inches minimum and 0.875 inches maximum

Nominal Thread Diameter

0.625 inches

Thread Quantity Per Inch

Minimum Yield Strength

85000 pounds per square inch

Material

steel overall

Thread Series Designator

unc

Regulatory Compliance

Precious Metals Indicator

Precious metal content is unknown

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.

Source of Supply Code

S9I

Pseudo Item Name Code

0018257

Related Hardware Products

Part Number	Description
179925	Hexagon Head Cap Screw
5897	Hexagon Head Cap Screw

Frequently Asked Questions

What is the FSCG of the NSN 5305-00-285-5178?

The FSCG of the NSN 5305-00-285-5178 is 5305

Does the NSN 5305-00-285-5178 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-285-5178 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 5305-00-285-5178 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-285-5178 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 5305-00-285-5178 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963