5305-00-638-7970

Find complete technical information, availability, and procurement data for: 5305-00-638-7970
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-638-7970

Item Name Code

06657

Assigment Date

01/01/1963 (63 years ago)

0.344 inches minimum and 0.375 inches maximum thread length, flat chamfer head style, right-hand thread direction, 0.344 inches minimum and 0.375 inches maximum fastener length, 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: 0.344 inches minimum and 0.375 inches maximum
Fastener Length: 0.344 inches minimum and 0.375 inches maximum
Head Style: flat chamfer
Head Diameter: 0.292 inches minimum and 0.313 inches maximum
Head Height: 0.123 inches minimum and 0.130 inches maximum
Internal Drive Style: slot
Nominal Thread Diameter: 0.190 inches
Hole Quantity: 2
Thread Quantity Per Inch: 24
Screw Material: steel corrosion resisting
Screw Surface Treatment: passivate
Thread Series Designator: unc
Nondefinitive Spec/Std Data: 1 type and 5s style

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5305-00-271-5046	No Name Available	01/01/1960

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
AC500C10-6	Machine Screw
AN500C10-6	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-00-638-7970?

The FSCG of the NSN 5305-00-638-7970 is 5305

Does the NSN 5305-00-638-7970 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-638-7970 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 5305-00-638-7970 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-638-7970 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 5305-00-638-7970 was assigned to the Federal Catalog?

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