5305-00-139-8173

Find complete technical information, availability, and procurement data for: 5305-00-139-8173
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-139-8173

Item Name Code

33044

Assigment Date

08/18/1971 (55 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.

0.360 inches minimum and 0.390 inches maximum fastener length, 0.298 inches minimum and 0.327 inches maximum thread length, fillister head style, right-hand thread direction, 3a 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: 3a
Thread Direction: right-hand
Thread Length: 0.298 inches minimum and 0.327 inches maximum
Fastener Length: 0.360 inches minimum and 0.390 inches maximum
Head Style: fillister
Head Diameter: 0.300 inches nominal
Material Accommodated Thickness: 0.053 inches nominal
Nominal Thread Diameter: 0.164 inches
Thread Quantity Per Inch: 32
Material: steel overall
Material Document And Classification: mil-s-7720 300 series mil spec single material response overall
Surface Treatment: passivate overall
Surface Treatment Document And Classification: mil-s-5002 mil spec single treatment response overall
Thread Series Designator: unc

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
536735-1	Panel Screw Assembly
CS5070-1	Panel Screw Assembly
FT1380-1	Panel Screw Assembly

FAQs

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

What is the FSCG of the NSN 5305-00-139-8173?

The FSCG of the NSN 5305-00-139-8173 is 5305

Does the NSN 5305-00-139-8173 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-139-8173 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 5305-00-139-8173 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-00-139-8173 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 5305-00-139-8173 was assigned to the Federal Catalog?

It was assigned 55 years ago, on Wed, Aug 18, 1971