5305-01-406-8660

Find complete technical information, availability, and procurement data for: 5305-01-406-8660
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-406-8660

Item Name Code

06657

Assigment Date

01/13/1995 (31 years ago)

A nonmetallic circular item with an aperature, having a solid round cross-section. They are used primarily for sealing. For items with other than round cross section, see packing,preformed. For noncircular items with a round cross-section, see seal,nonmetallic round section and rubber,round section.

right-hand thread direction, 2a thread class, flat countersunk head style, 0.443 inches maximum thread length, 0.470 inches minimum and 0.500 inches maximum fastener 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: 2a
Thread Direction: right-hand
Thread Length: 0.443 inches maximum
Fastener Length: 0.470 inches minimum and 0.500 inches maximum
Head Style: flat countersunk
Head Diameter: 0.238 inches minimum and 0.279 inches maximum
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.138 inches
Thread Quantity Per Inch: 32
Minimum Tensile Strength: 80000 pounds per square inch
Countersink Angle: 100.0 degrees nominal
Screw Material: steel comp 302 or steel comp 303 or steel comp 304 or steel comp 305 or steel comp 316
Screw Material Document And Classification: 66 fed std all material responses
Screw Surface Treatment: passivate
Screw Surface Treatment Document And Classification: mil-s-5002 mil spec single treatment response
Special Features: epoxy color coat head, mil-e-15090, ty iii, cl 2; or color grey 26307, fed-std-595
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
5265829-005	Machine Screw
FH6C8CP-S01GY	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-01-406-8660?

The FSCG of the NSN 5305-01-406-8660 is 5305

Does the NSN 5305-01-406-8660 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-406-8660 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 5305-01-406-8660 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-406-8660 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 5305-01-406-8660 was assigned to the Federal Catalog?

It was assigned 31 years ago, on Fri, Jan 13, 1995