5305-01-643-1098

Find complete technical information, availability, and procurement data for: 5305-01-643-1098
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-643-1098

Item Name Code

33044

Assigment Date

03/20/2015 (11 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes:items with bevel (conical) heads. See bolt, internal wrenching. Excludes:screw, shoulder; and screw, machine.

0.1775 inches minimum and 0.1975 inches maximum thread length, button head style, 3a thread class, 0.437 inches nominal fastener length, right-hand thread direction

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: 0.1775 inches minimum and 0.1975 inches maximum
Fastener Length: 0.437 inches nominal
Head Style: button
Head Diameter: 0.250 inches minimum and 0.262 inches maximum
Head Height: 0.063 inches minimum and 0.073 inches maximum
Internal Drive Style: hexagon
Material Accommodated Thickness: 0.09375 inches nominal
Nominal Thread Diameter: 0.1380 inches
Width Across Flats: 0.078 inches nominal
Features Provided: lock washer
Thread Quantity Per Inch: 32
Part Name Assigned By Controlling Agency: hex head socket button head captive panel assembly
Material: steel property class 18.8 overall
Surface Treatment: passivate overall
Surface Treatment Document And Classification: type2 mfr ref 1st 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
116066-.437-C-SS-12ABW	Panel Screw Assembly
X65838	Panel Screw Assembly

FAQs

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

What is the FSCG of the NSN 5305-01-643-1098?

The FSCG of the NSN 5305-01-643-1098 is 5305

Does the NSN 5305-01-643-1098 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-643-1098 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 5305-01-643-1098 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-643-1098 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 5305-01-643-1098 was assigned to the Federal Catalog?

It was assigned 11 years ago, on Fri, Mar 20, 2015