5305-01-391-0334

Find complete technical information, availability, and procurement data for: 5305-01-391-0334
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-391-0334

Item Name Code

06657

Assigment Date

06/02/1994 (32 years ago)

An externally threaded device whose threaded portion is of one nominal diameter with or without a head and having a cup, cone, or other type of machined point designed to prevent or restrict relative movement of parts and designed to be driven with either a wrench or inserted driver. A locking feature may be incorporated in the design of the head or threads.

3a thread class, right-hand thread direction, pan no. 2 head style, 0.656 inches minimum thread length, 0.688 inches minimum and 0.735 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: 3a
Thread Direction: right-hand
Thread Length: 0.656 inches minimum
Fastener Length: 0.688 inches minimum and 0.735 inches maximum
Head Style: pan no. 2
Head Diameter: 0.838 inches minimum and 0.861 inches maximum
Head Height: 0.286 inches minimum and 0.304 inches maximum
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.438 inches
Thread Quantity Per Inch: 20
Minimum Tensile Strength: 125000 pounds per square inch
Hardness Rating: 26.0 rockwell c minimum and 32.0 rockwell c maximum
Screw Material: steel comp 8630 or steel comp 4130
Screw Material Document And Classification: mil-s-6050 mil spec 1st material response or mil-s-6758 mil spec 2nd material response
Screw Surface Treatment: cadmium and chromate
Screw Surface Treatment Document And Classification: qq-p-416 ty 2 cl 2 fed spec all treatment responses
Thread Series Designator: unf

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
MS27039-7-10	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-01-391-0334?

The FSCG of the NSN 5305-01-391-0334 is 5305

Does the NSN 5305-01-391-0334 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-391-0334 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 5305-01-391-0334 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-391-0334 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 5305-01-391-0334 was assigned to the Federal Catalog?

It was assigned 32 years ago, on Thu, Jun 2, 1994