639146-268

View detailed technical data, stock status, and sourcing information for: 639146-268
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-945-0506

Item Name Code

06657

Assigment Date

03/04/1966 (60 years ago)

fillister head style, 0.388 inches minimum and 0.438 inches maximum thread length, 0.438 inches nominal fastener length, right-hand thread direction, 2a thread class

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: 0.388 inches minimum and 0.438 inches maximum
Fastener Length: 0.438 inches nominal
Head Style: fillister
Head Diameter: 0.166 inches minimum and 0.183 inches maximum
Head Height: 0.072 inches minimum and 0.079 inches maximum
Hole Diameter: 0.037 inches nominal
Internal Drive Style: slot
Nominal Thread Diameter: 0.112 inches
Hole Quantity: 1
Thread Quantity Per Inch: 40
Minimum Tensile Strength: 80000 pounds per square inch
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: qq-p-35 fed spec single treatment response
Head Hole Configuration Style: round
Thread Series Designator: unc

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5305-00-022-4697	No Name Available	03/30/1967
5305-00-068-5816	No Name Available	11/01/1976
5305-00-207-1617	No Name Available	03/08/1968
5305-00-207-6676	No Name Available	09/21/1966
5305-00-282-4429	No Name Available	06/01/2002
5305-00-462-5182	No Name Available	11/01/1980
5305-00-582-6995	No Name Available	10/01/1982
5305-00-592-8085	No Name Available	12/01/1982
5305-00-800-0414	No Name Available	10/01/1982
5305-00-837-8090	No Name Available	01/01/1983

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:

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10114721	Machine Screw
112-0784-016	Machine Screw
16445ADX	Machine Screw
35275-216	Machine Screw
5305PL0912473	Machine Screw
639146-268	Machine Screw
819004-014	Machine Screw
91047-216	Machine Screw
M153-116	Machine Screw
MS35275-216	Machine Screw
WC1054-016	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-00-945-0506?

The FSCG of the NSN 5305-00-945-0506 is 5305

Does the NSN 5305-00-945-0506 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-945-0506 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 5305-00-945-0506 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-945-0506 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 5305-00-945-0506 was assigned to the Federal Catalog?

It was assigned 60 years ago, on Fri, Mar 4, 1966