NAS222-38

View detailed technical data, stock status, and sourcing information for: NAS222-38
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-515-8720

Item Name Code

06657

Assigment Date

01/01/1963 (63 years ago)

An item designed to fit over and hold a nut or bolt head to prevent it from turning. See also locking plate, nut and bolt.

2.391 inches minimum and 2.438 inches maximum fastener length, round head style, 3a thread class, right-hand thread direction, 0.430 inches minimum and 0.578 inches maximum thread 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: 3a
Thread Direction: right-hand
Thread Length: 0.430 inches minimum and 0.578 inches maximum
Fastener Length: 2.391 inches minimum and 2.438 inches maximum
Head Style: round
Head Diameter: 0.464 inches minimum and 0.493 inches maximum
Head Height: 0.133 inches minimum and 0.150 inches maximum
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.250 inches
Thread Quantity Per Inch: 28
Minimum Tensile Strength: 125000 pounds per square inch
Hardness Rating: 26.0 rockwell c minimum and 32.0 rockwell c maximum
Screw Material: steel comp 8630
Screw Material Document And Classification: mil-s-6050 mil spec single material response or an-s-9 mil std single material response
Screw Surface Treatment: cadmium
Screw Surface Treatment Document And Classification: qq-p-416,ty 1,cl 3 fed spec single treatment response
Thread Series Designator: unf

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5305-00-271-3524	No Name Available	07/16/1996

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
NAS222-38	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-00-515-8720?

The FSCG of the NSN 5305-00-515-8720 is 5305

Does the NSN 5305-00-515-8720 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-515-8720 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 5305-00-515-8720 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-515-8720 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 5305-00-515-8720 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963