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5305-01-421-2121

Hexagon Head Cap Screw

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Official Item Classification

Name
Hexagon Head Cap Screw
(NSN) National Stock Number
5305-01-421-2121
(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
11/03/1995 (30 years ago)

0.312 inches nominal thread diameter, 12.7 millimeters nominal width between flats, 18 thread quantity per inch

Specs & Compatibility

Width Between Flats

12.7 millimeters nominal

Nominal Thread Diameter

0.312 inches

Thread Quantity Per Inch

18

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

0018257

Related Hardware Products

Part Number Description
7X0276 Hexagon Head Cap Screw

Frequently Asked Questions

What is the FSCG of the NSN 5305-01-421-2121?
The FSCG of the NSN 5305-01-421-2121 is 5305
Does NSN 5305-01-421-2121 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 5305-01-421-2121 contain precious materials?
Item does not contain precious metal.
Does NSN 5305-01-421-2121 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 5305-01-421-2121 was assigned to the Federal Catalog?
It was assigned 30 years ago, on Fri, Nov 3, 1995