5305-00-889-3186

Find complete technical information, availability, and procurement data for: 5305-00-889-3186
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-889-3186

Item Name Code

06657

Assigment Date

01/01/1960 (66 years ago)

flat countersunk head style, 0.525 inches minimum thread length, right-hand thread direction, 2a thread class, 0.625 inches nominal fastener 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: 2a
Thread Direction: right-hand
Thread Length: 0.525 inches minimum
Fastener Length: 0.625 inches nominal
Head Style: flat countersunk
Head Diameter: 0.477 inches minimum and 0.507 inches maximum
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.250 inches
Thread Quantity Per Inch: 20
Countersink Angle: 80.0 degrees minimum and 82.0 degrees maximum
Screw Material: aluminum alloy 2024
Screw Surface Treatment: anodize
Thread Series Designator: unc

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5305-00-271-7673	No Name Available	11/21/2003

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
MS35202-70	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-00-889-3186?

The FSCG of the NSN 5305-00-889-3186 is 5305

Does the NSN 5305-00-889-3186 have a Schedule B code assigned?

Yes, the Schedule B code is 7616106000

Does NSN 5305-00-889-3186 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 5305-00-889-3186 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-889-3186 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 5305-00-889-3186 was assigned to the Federal Catalog?

It was assigned 66 years ago, on Fri, Jan 1, 1960