5305-00-351-4521

Find complete technical information, availability, and procurement data for: 5305-00-351-4521
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-351-4521

Item Name Code

29294

Assigment Date

03/25/1970 (56 years ago)

1.124 inches minimum and 1.144 inches maximum fastener length, 0.421 inches minimum and 0.453 inches maximum thread length, 3a thread class, flat countersunk head style, right-hand thread direction

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: 0.421 inches minimum and 0.453 inches maximum
Fastener Length: 1.124 inches minimum and 1.144 inches maximum
Head Style: flat countersunk
Head Diameter: 0.568 inches minimum and 0.635 inches maximum
Grip Diameter: 0.2480 inches minimum and 0.2492 inches maximum
Internal Drive Style: offset cruciform (torque set)
Nominal Thread Diameter: 0.250 inches
Grip Length: 0.584 inches minimum and 0.604 inches maximum
Thread Quantity Per Inch: 28
Countersink Angle: 100.0 degrees minimum
Special Features: retaining element in shank
Material: iron alloy 660 or steel comp 303 or steel comp 303se or steel comp 303 plus x overall
Surface Treatment: passivate overall
Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response overall
Thread Series Designator: unf

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
CA2720-4-0594	Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-00-351-4521?

The FSCG of the NSN 5305-00-351-4521 is 5305

Does the NSN 5305-00-351-4521 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-351-4521 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 5305-00-351-4521 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-351-4521 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 5305-00-351-4521 was assigned to the Federal Catalog?

It was assigned 56 years ago, on Wed, Mar 25, 1970