MBEU145866

View detailed technical data, stock status, and sourcing information for: MBEU145866
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-395-2831

Item Name Code

18257

Assigment Date

08/25/1994 (31 years ago)

An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. The threaded and unthreaded portions are both of one nominal diameter of 0.190 inch (5 mm) or larger. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. For items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, bolt, shear. See also screw, cap, hexagon head and screw, machine.

5.763 inches minimum and 5.793 inches maximum fastener length, 0.513 inches minimum and 0.543 inches maximum thread length, right-hand thread direction, hexagon head style, 2a thread class

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: 0.513 inches minimum and 0.543 inches maximum
Fastener Length: 5.763 inches minimum and 5.793 inches maximum
Head Style: hexagon
Head Height: 0.250 inches minimum and 0.265 inches maximum
Width Between Flats: 0.741 inches minimum and 0.752 inches maximum
Nominal Thread Diameter: 0.500 inches
Features Provided: dry film lubricant
Thread Quantity Per Inch: 20
Surface Finish: 32.0 microinches grip
Material: steel comp xm-12 overall
Material Document And Classification: ams5659 assn std single material response overall
Surface Treatment: lubricant overall
Surface Treatment Document And Classification: mil-l-8937 mil spec single treatment 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
MBEU145866	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-395-2831?

The FSCG of the NSN 5305-01-395-2831 is 5305

Does the NSN 5305-01-395-2831 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-395-2831 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 5305-01-395-2831 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-395-2831 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 5305-01-395-2831 was assigned to the Federal Catalog?

It was assigned 31 years ago, on Thu, Aug 25, 1994