5305-00-781-3800

Find complete technical information, availability, and procurement data for: 5305-00-781-3800
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-781-3800

Item Name Code

06657

Assigment Date

01/01/1960 (66 years ago)

right-hand thread direction, 1.891 inches minimum and 1.938 inches maximum fastener length, 0.376 inches minimum and 0.515 inches maximum thread length, round head style, 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: 0.376 inches minimum and 0.515 inches maximum
Fastener Length: 1.891 inches minimum and 1.938 inches maximum
Head Style: round
Head Diameter: 0.361 inches minimum and 0.385 inches maximum
Head Height: 0.103 inches minimum and 0.118 inches maximum
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.190 inches
Thread Quantity Per Inch: 32
Minimum Tensile Strength: 125000 pounds per square inch
Hardness Rating: 248.0 brinell standard minimum and 321.0 brinell standard maximum
Screw Material: iron alloy 660
Screw Material Document And Classification: ams 5735 assn std single material response
Screw Surface Treatment: passivate
Screw Surface Treatment Document And Classification: mil-s-5002 mil spec single treatment response
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
NAS221C30	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-00-781-3800?

The FSCG of the NSN 5305-00-781-3800 is 5305

Does the NSN 5305-00-781-3800 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-781-3800 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 5305-00-781-3800 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-00-781-3800 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 5305-00-781-3800 was assigned to the Federal Catalog?

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