624821-215

View detailed technical data, stock status, and sourcing information for: 624821-215
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-423-3254

Item Name Code

18257

Assigment Date

12/21/1995 (30 years ago)

A metallic or nonmetallic item which is rigid, flat and generally smooth. Its thickness is small in comparison to its length and width. It is designed for mounting one or more items and may have drilled or threaded holes or other facilities for mounting to a supporting object or surface. See support,as modified. Do not use if a more specific name applies.

2a thread class, hexagon head style, 1.750 inches minimum thread length, right-hand thread direction, 4.906 inches minimum and 5.000 inches maximum fastener length

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Class: 2a
Thread Direction: right-hand
Thread Length: 1.750 inches minimum
Fastener Length: 4.906 inches minimum and 5.000 inches maximum
Head Style: hexagon
Head Height: 0.302 inches minimum and 0.323 inches maximum
Width Between Flats: 0.736 inches minimum and 0.750 inches maximum
Nominal Thread Diameter: 0.500 inches
Thread Quantity Per Inch: 20
Minimum Tensile Strength: 130000 pounds per square inch
Hardness Rating: 24.0 rockwell c minimum and 35.0 rockwell c maximum overall
Material: nickel alloy k-500 overall
Material Document And Classification: qq-n-286 cl a fed spec single material response overall
Thread Series Designator: unf

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number	Name
624821-215	Hexagon Head Cap Screw

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 5305-01-423-3254?

The FSCG of the NSN 5305-01-423-3254 is 5305

Does the NSN 5305-01-423-3254 have a Schedule B code assigned?

Yes, the Schedule B code is 7508900000

Does NSN 5305-01-423-3254 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 5305-01-423-3254 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-423-3254 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 5305-01-423-3254 was assigned to the Federal Catalog?

It was assigned 30 years ago, on Thu, Dec 21, 1995