5305-01-078-8039

Find complete technical information, availability, and procurement data for: 5305-01-078-8039
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-078-8039

Item Name Code

06657

Assigment Date

06/20/1979 (47 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter, no. 10 (0.190 in.) (5 mm) or larger. It is designed with an internal socket or internal multiple spline for use with an internal driver. The head is beveled (conical) or cylindrical in shape. Items with cylindrical shaped heads must have an externally relieved body. A locking feature may be incorporated in the design of the head or threads. See also screw, cap, socket head. Excludes:setscrew; screw, shoulder; bolt, shoulder; screw, externally relieved body; bolt, externally relieved body; and screw, machine.

0.282 inches minimum and 0.312 inches maximum thread length, right-hand thread direction, 0.282 inches minimum and 0.312 inches maximum fastener length, 2a thread class, 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: 2a
Thread Direction: right-hand
Thread Length: 0.282 inches minimum and 0.312 inches maximum
Fastener Length: 0.282 inches minimum and 0.312 inches maximum
Head Style: pan
Head Diameter: 0.241 inches minimum and 0.257 inches maximum
Head Height: 0.059 inches minimum and 0.069 inches maximum
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.112 inches
Thread Quantity Per Inch: 40
Screw Material: steel corrosion resisting
Screw Surface Treatment: passivate and oxide
Screw Surface Treatment Document And Classification: qq-p-35 fed spec 1st treatment response and mil-c-13924 cl3 mil spec 2nd treatment response
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
A320A216-102	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-01-078-8039?

The FSCG of the NSN 5305-01-078-8039 is 5305

Does the NSN 5305-01-078-8039 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-078-8039 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 5305-01-078-8039 contain precious materials?

Precious metal content is unknown

Does NSN 5305-01-078-8039 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 5305-01-078-8039 was assigned to the Federal Catalog?

It was assigned 47 years ago, on Wed, Jun 20, 1979