5305-00-638-5031

Find complete technical information, availability, and procurement data for: 5305-00-638-5031
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-638-5031

Item Name Code

01852

Assigment Date

01/01/1963 (63 years ago)

3a thread class, right-hand thread direction, fillister head style, 1.000 inches minimum thread length, 2.200 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: 3a
Thread Direction: right-hand
Thread Length: 1.000 inches minimum
Fastener Length: 2.200 inches nominal
Head Style: fillister
Head Diameter: 0.208 inches minimum and 0.226 inches maximum
Head Height: 0.085 inches minimum and 0.093 inches maximum
First Diameter From Head: 0.113 inches minimum and 0.123 inches maximum
Distance From Largest Bearing Surface Of Head To End Of First Diameter: 1.200 inches nominal
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.138 inches
Thread Quantity Per Inch: 32
Hardness Rating: 20.0 rockwell c minimum and 24.0 rockwell c maximum overall
Externally Relieved Body Diameter Quantity: 1
Material: steel comp 8740 or steel comp 4130 or steel comp 4037 overall
Surface Treatment: cadmium and chromate and chromium overall
Surface Treatment Document And Classification: qq-p-416 type 2,class 2 fed spec 1st treatment response and mil-p-6871 type 2,class a mil spec 2nd treatment response 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Below is a list of NSNs that have been officially superseded by this NSN: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
5305-00-923-5077	No Name Available	02/01/1987

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
E1622M1-1	Externally Relieved Body Screw
EAB1722	Externally Relieved Body Screw

FAQs

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

What is the FSCG of the NSN 5305-00-638-5031?

The FSCG of the NSN 5305-00-638-5031 is 5305

Does the NSN 5305-00-638-5031 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-638-5031 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 5305-00-638-5031 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-00-638-5031 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 5305-00-638-5031 was assigned to the Federal Catalog?

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