639129-349

View detailed technical data, stock status, and sourcing information for: 639129-349
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-455-2554

Item Name Code

06657

Assigment Date

04/25/1969 (57 years ago)

flat countersunk head style, 0.324 inches minimum and 0.417 inches maximum thread length, 2a thread class, 0.469 inches minimum and 0.500 inches maximum fastener length, right-hand thread direction

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: 0.324 inches minimum and 0.417 inches maximum
Fastener Length: 0.469 inches minimum and 0.500 inches maximum
Head Style: flat countersunk
Head Diameter: 0.244 inches minimum and 0.279 inches maximum
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.138 inches
Thread Quantity Per Inch: 32
Minimum Tensile Strength: 80000 pounds per square inch
Countersink Angle: 80.0 degrees minimum and 82.0 degrees maximum
Screw Material: steel corrosion resisting or steel
Screw Material Document And Classification: qq-s-763,300 series fed spec 1st material response or 66,300 series fed std 1st material response or comp 16-18 or 18-8 assn std 2nd material response
Screw Surface Treatment: oxide
Screw Surface Treatment Document And Classification: mil-c-13924,cl 4 mil spec single treatment response
Thread Series Designator: unc
Nondefinitive Spec/Std Data: 3 type and 2c style
Departure From Cited Designator: as modified by finish

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5305-00-459-0902	No Name Available	07/02/1970

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
0211-2030	Machine Screw
10125309	Machine Screw
418331-30	Machine Screw
639129-349	Machine Screw
MS51959-30B	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-00-455-2554?

The FSCG of the NSN 5305-00-455-2554 is 5305

Does the NSN 5305-00-455-2554 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-455-2554 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 5305-00-455-2554 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-455-2554 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 5305-00-455-2554 was assigned to the Federal Catalog?

It was assigned 57 years ago, on Fri, Apr 25, 1969