5305-00-421-7920

Find complete technical information, availability, and procurement data for: 5305-00-421-7920
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-421-7920

Item Name Code

16282

Assigment Date

12/21/1970 (55 years ago)

0.345 inches minimum and 0.375 inches maximum fastener length, flat chamfer head style, 0.295 inches minimum and 0.375 inches maximum thread length, 3a thread class, 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: 0.295 inches minimum and 0.375 inches maximum
Fastener Length: 0.345 inches minimum and 0.375 inches maximum
Head Style: flat chamfer
Head Diameter: 0.176 inches minimum and 0.183 inches maximum
Head Height: 0.108 inches minimum and 0.112 inches maximum
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.112 inches
Width Across Flats: 0.094 inches minimum and 0.095 inches maximum
Thread Quantity Per Inch: 40
Minimum Tensile Strength: 80000 pounds per square inch
Hardness Rating: 80.0 rockwell b minimum overall
Minimum Yield Strength: 30000 pounds per square inch
Material: steel comp 302 or steel comp 303 or steel comp 304 or steel comp 305 or steel comp 316 overall
Material Document And Classification: 66 fed std all material responses overall
Surface Treatment: oxide overall
Surface Treatment Document And Classification: mil-c-13924,ty 4 mil spec single treatment response overall
Thread Series Designator: unc
Nondefinitive Spec/Std Data: 6 type

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5305-00-914-5903	No Name Available	08/25/1971
5305-01-490-0741	No Name Available	01/01/2007

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
10079877	Socket Head Cap Screw
13213E4697-2	Socket Head Cap Screw
MS16995-10B	Socket Head Cap Screw
SCC614416-2	Socket Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-00-421-7920?

The FSCG of the NSN 5305-00-421-7920 is 5305

Does the NSN 5305-00-421-7920 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-421-7920 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 5305-00-421-7920 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-421-7920 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 5305-00-421-7920 was assigned to the Federal Catalog?

It was assigned 55 years ago, on Mon, Dec 21, 1970