5305-00-438-2821

Find complete technical information, availability, and procurement data for: 5305-00-438-2821
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-438-2821

Item Name Code

22846

Assigment Date

09/17/1969 (56 years ago)

right-hand thread direction, 3a thread class, flat chamfer head style, 0.750 inches nominal fastener length, 0.375 inches minimum 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: 0.375 inches minimum
Fastener Length: 0.750 inches nominal
Head Style: flat chamfer
Head Diameter: 0.375 inches nominal
Head Height: 0.188 inches nominal
Shoulder Diameter: 0.247 inches minimum and 0.248 inches maximum first shoulder
Shoulder Length: 0.375 inches nominal first shoulder
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.190 inches
Width Across Flats: 0.125 inches nominal
Thread Quantity Per Inch: 24
Hardness Rating: 37.0 rockwell c minimum and 43.0 rockwell c maximum overall
Shoulder Shape: round first shoulder
Special Features: pellet type element in threads locking feature
Material: steel overall
Material Document And Classification: qq-s-624,comp 4037 fed spec single material response overall
Thread Series Designator: unc

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
1788757	Shoulder Screw

FAQs

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

What is the FSCG of the NSN 5305-00-438-2821?

The FSCG of the NSN 5305-00-438-2821 is 5305

Does the NSN 5305-00-438-2821 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-438-2821 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 5305-00-438-2821 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-438-2821 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 5305-00-438-2821 was assigned to the Federal Catalog?

It was assigned 56 years ago, on Wed, Sep 17, 1969