5305-01-348-2686

Find complete technical information, availability, and procurement data for: 5305-01-348-2686
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-348-2686

Item Name Code

29294

Assigment Date

11/07/1991 (34 years ago)

A headed, threaded fastening device over which may be assembled; (1) a stand-off; (2) a flanged bushing with washer(s) and/or a shouldered bushing without a flange, or it may have an internally threaded sleeve that is an integral part of the screw; a washer and an externally thread self-locking bushing that is driven by an inserted driver. Attached to panel by threaded bushing or by flaring end of stand-off, or bushing. Used in conjunction with a speed nut, nut plate, or driven into a threaded hole in the item that the panel is fastened to. May be spring loaded.

3a thread class, right-hand thread direction, 2.078 inches minimum and 2.124 inches maximum fastener length, hexagon head style, 0.781 inches nominal thread 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: 3a
Thread Direction: right-hand
Thread Length: 0.781 inches nominal
Fastener Length: 2.078 inches minimum and 2.124 inches maximum
Head Style: hexagon
Head Height: 0.265 inches minimum and 0.297 inches maximum
Width Between Flats: 0.740 inches minimum and 0.752 inches maximum
Grip Diameter: 0.4986 inches minimum and 0.4991 inches maximum
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.500 inches
Grip Length: 1.952 inches minimum and 1.982 inches maximum
Thread Quantity Per Inch: 20
Minimum Tensile Strength: 125000 pounds per square inch
Hardness Rating: 26.0 rockwell c minimum and 32.0 rockwell c maximum overall
Surface Finish: 32.0 microinches bearing surface of head32.0 microinches grip
Material: steel comp 431 overall
Material Document And Classification: mil-s-18732 mil spec single material response overall
Surface Treatment: passivate 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
AN178C20A	Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-01-348-2686?

The FSCG of the NSN 5305-01-348-2686 is 5305

Does the NSN 5305-01-348-2686 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-348-2686 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 5305-01-348-2686 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-348-2686 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 5305-01-348-2686 was assigned to the Federal Catalog?

It was assigned 34 years ago, on Thu, Nov 7, 1991