5305-00-556-7421

Find complete technical information, availability, and procurement data for: 5305-00-556-7421
DODParts.com distributes related products varnishes dopes paints, aircraft parts and consumables, electrical parts, fittings and other components for the aerospace and defense industries. Submit the short price quote form for NSN 5305-00-556-7421 to receive an up to date pricing and availability quote by email.

Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-556-7421

Item Name Code

06657

Assigment Date

11/08/1974 (51 years ago)

0.428 inches minimum and 0.448 inches maximum fastener length, 3a thread class, double hexagon w/ hole head style, right-hand thread direction, 0.366 inches minimum and 0.448 inches maximum 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: 0.366 inches minimum and 0.448 inches maximum
Fastener Length: 0.428 inches minimum and 0.448 inches maximum
Head Style: double hexagon w/ hole
Head Height: 0.240 inches minimum and 0.260 inches maximum
Width Between Flats: 0.212 inches minimum and 0.220 inches maximum
Extended Washer Diameter: 0.312 inches nominal
Extended Washer Thickness: 0.030 inches minimum and 0.040 inches maximum
Nominal Thread Diameter: 0.164 inches
Thread Quantity Per Inch: 32
Hardness Rating: 24.0 rockwell c minimum and 35.0 rockwell c maximum
Screw Material: iron alloy 660
Screw Material Document And Classification: ams 5735 assn std single material response
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
S9093-82-05A	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-00-556-7421?

The FSCG of the NSN 5305-00-556-7421 is 5305

Does the NSN 5305-00-556-7421 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-556-7421 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 5305-00-556-7421 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-556-7421 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 5305-00-556-7421 was assigned to the Federal Catalog?

It was assigned 51 years ago, on Fri, Nov 8, 1974