5305-01-258-8478

Find complete technical information, availability, and procurement data for: 5305-01-258-8478
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-258-8478

Item Name Code

06657

Assigment Date

07/09/1987 (39 years ago)

0.886 inches minimum and 0.916 inches maximum fastener length, 2a thread class, right-hand thread direction, pan head style, 0.251 inches minimum and 0.301 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: 2a
Thread Direction: right-hand
Thread Length: 0.251 inches minimum and 0.301 inches maximum
Fastener Length: 0.886 inches minimum and 0.916 inches maximum
Head Style: pan
Head Diameter: 0.256 inches minimum and 0.270 inches maximum
Head Height: 0.087 inches minimum and 0.097 inches maximum
Internal Drive Style: torque set
Nominal Thread Diameter: 0.138 inches
Thread Quantity Per Inch: 32
Minimum Tensile Strength: 160000 pounds per square inch
Screw Material: steel comp e4340 or steel comp 4140 or steel comp 8740 or steel comp 8735 or steel comp 6150
Screw Surface Treatment Document And Classification: qq-p-416,type 2 class 2 fed spec single treatment response
Thread Series Designator: unc
Specification/Standard Data: 80205-nas1631 professional/industrial association standard

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
NAS1631-10	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-01-258-8478?

The FSCG of the NSN 5305-01-258-8478 is 5305

Does the NSN 5305-01-258-8478 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-258-8478 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 5305-01-258-8478 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-258-8478 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 5305-01-258-8478 was assigned to the Federal Catalog?

It was assigned 39 years ago, on Thu, Jul 9, 1987