5305-00-638-1623

Find complete technical information, availability, and procurement data for: 5305-00-638-1623
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-638-1623

Item Name Code

01852

Assigment Date

01/01/1963 (63 years ago)

0.750 inches nominal fastener length, 2a thread class, right-hand thread direction, 0.312 inches minimum thread length, pan head style

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: 0.312 inches minimum
Fastener Length: 0.750 inches nominal
Head Style: pan
Head Diameter: 0.275 inches minimum and 0.290 inches maximum
Head Height: 0.071 inches minimum and 0.080 inches maximum
First Diameter From Head: 0.132 inches minimum and 0.138 inches maximum
Second Diameter From Head: 0.095 inches minimum and 0.100 inches maximum
Distance From Largest Bearing Surface Of Head To End Of First Diameter: 0.032 inches nominal
Distance From Largest Bearing Surface Of Head To End Of Second Diameter: 0.406 inches nominal
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.138 inches
Thread Quantity Per Inch: 32
Externally Relieved Body Diameter Quantity: 2
Material: steel overall
Surface Treatment: cadmium and enamel overall
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Below is a list of NSNs that have been officially superseded by this NSN: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
5305-00-313-5205	No Name Available	01/01/1963
5305-00-637-8858	No Name Available	02/24/1967

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
504-7414-001	Externally Relieved Body Screw

FAQs

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

What is the FSCG of the NSN 5305-00-638-1623?

The FSCG of the NSN 5305-00-638-1623 is 5305

Does the NSN 5305-00-638-1623 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-638-1623 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 5305-00-638-1623 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-638-1623 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 5305-00-638-1623 was assigned to the Federal Catalog?

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