5305-01-398-8785

Find complete technical information, availability, and procurement data for: 5305-01-398-8785
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-398-8785

Item Name Code

06657

Assigment Date

11/10/1994 (31 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes:items with bevel (conical) heads. See bolt, internal wrenching. Excludes:screw, shoulder; and screw, machine.

right-hand thread direction, 2a thread class, pan head style, 0.375 inches nominal thread length, 0.375 inches nominal 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: 0.375 inches nominal
Fastener Length: 0.375 inches nominal
Head Style: pan
Head Diameter: 0.473 inches minimum and 0.492 inches maximum
Head Height: 0.162 inches minimum and 0.175 inches maximum
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.250 inches
Thread Quantity Per Inch: 20
Screw Material: steel comp 302 or steel comp 303 or steel comp 304 or steel comp 305 or steel comp 316
Screw Surface Treatment: oxide
Screw Surface Treatment Document And Classification: mil-c-13924 cl4 mil spec single treatment response
Color: black
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
MS51957-77B	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-01-398-8785?

The FSCG of the NSN 5305-01-398-8785 is 5305

Does the NSN 5305-01-398-8785 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-398-8785 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 5305-01-398-8785 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-398-8785 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 5305-01-398-8785 was assigned to the Federal Catalog?

It was assigned 31 years ago, on Thu, Nov 10, 1994