5305-01-439-9191

Find complete technical information, availability, and procurement data for: 5305-01-439-9191
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-439-9191

Item Name Code

06657

Assigment Date

12/24/1996 (29 years ago)

A washer, usually round, with a centrally-located hole. Its edges and two bearing surfaces are designed in such a way that applied pressure brings into play the spring tension and/or frictional locking principle that materially resists any tendency toward turning. It may be made of one or two pieces.

0.595 inches minimum and 0.625 inches maximum thread length, right-hand thread direction, 0.595 inches minimum and 0.625 inches maximum fastener length, undercut pan no. 2 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: 0.595 inches minimum and 0.625 inches maximum
Fastener Length: 0.595 inches minimum and 0.625 inches maximum
Head Style: undercut pan no. 2
Head Diameter: 0.357 inches minimum and 0.373 inches maximum
Head Height: 0.122 inches minimum and 0.133 inches maximum
Spline Major Diameter: 0.178 inches nominal
Internal Drive Style: torx
Nominal Thread Diameter: 0.190 inches
Thread Quantity Per Inch: 32
Screw Material: steel
Screw Surface Treatment: cadmium and chromate
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
212-0713-00	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-01-439-9191?

The FSCG of the NSN 5305-01-439-9191 is 5305

Does the NSN 5305-01-439-9191 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-439-9191 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 5305-01-439-9191 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-439-9191 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 5305-01-439-9191 was assigned to the Federal Catalog?

It was assigned 29 years ago, on Tue, Dec 24, 1996