4438 Shoulder Screw

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5305-00-005-3621

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Official Item Classification

Name: Shoulder Screw
Part Number: 4438
(NSN) National Stock Number: 5305-00-005-3621
(FSG) Federal Supply Group: 53 Hardware and Abrasives
(FSC) Federal Supply Classification: 5305 Screws
(INC) Item Name Code: 22846
(FIIG) Federal Item Identification Guide: A003B0
Date: 06/07/1972 (54 years ago)

thread length: 0.438", steel material, Thread Diameter: 0.25"

Specs & Compatibility

Head Diameter

0.5 inches

Shoulder Shape

Round first shoulder

Thread Quantity Per Inch

Width Across Flats

0.156 inches

Material Document and Classification

Astm 582 assn std single material response

Nominal Thread Diameter

0.25 inches

Internal Drive Style

Hexagon

Shoulder Length

0.313 inches minimum first shoulder and 0.315 inches maximum first shoulder

Shoulder Diameter

0.311 inches minimum first shoulder and 0.312 inches maximum first shoulder

Head Height

0.219 inches

Head Style

Flat chamfer

Thread Class

Thread Direction

Right-hand

Thread Length

0.438 inches

Fastener Length

0.751 inches minimum and 0.753 inches maximum

Material

Steel comp 303

Thread Series Designator

Unc

Regulatory Compliance

Precious Metals Indicator

Item does not contain precious metal.

Criticality Code

The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Hazardous Metals Indicator

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

Pseudo Item Name Code

0022846

Related Hardware Products

Part Number	Description
104-44-29	Shoulder Screw
4438	Shoulder Screw

Frequently Asked Questions

What is the FSCG of the NSN 5305-00-005-3621?

The FSCG of the NSN 5305-00-005-3621 is 5305

Does the NSN 5305-00-005-3621 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-005-3621 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 5305-00-005-3621 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-00-005-3621 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 5305-00-005-3621 was assigned to the Federal Catalog?

It was assigned 54 years ago, on Wed, Jun 7, 1972