5305-01-178-5666

Find complete technical information, availability, and procurement data for: 5305-01-178-5666
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-178-5666

Item Name Code

06657

Assigment Date

05/07/1984 (42 years ago)

2b thread class, right-hand thread direction, 0.880 inches nominal fastener length, 0.500 inches nominal thread length, pan head style

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Class: 2b
Thread Direction: right-hand
Thread Length: 0.500 inches nominal
Fastener Length: 0.880 inches nominal
Head Style: pan
Head Diameter: 0.256 inches minimum and 0.270 inches maximum
Head Height: 0.057 inches minimum and 0.097 inches maximum
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.138 inches
Thread Quantity Per Inch: 32
Screw Material: steel corrosion resisting
Screw Material Document And Classification: qq-s-761 fed spec single material response
Screw Surface Treatment: passivate
Screw Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response
Special Features: to be made from ms51957-12
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
2846057-2	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-01-178-5666?

The FSCG of the NSN 5305-01-178-5666 is 5305

Does the NSN 5305-01-178-5666 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-178-5666 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 5305-01-178-5666 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-178-5666 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 5305-01-178-5666 was assigned to the Federal Catalog?

It was assigned 42 years ago, on Mon, May 7, 1984