639122-246

View detailed technical data, stock status, and sourcing information for: 639122-246
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-220-2574

Item Name Code

06657

Assigment Date

02/12/1969 (57 years ago)

0.245 inches minimum and 0.312 inches maximum thread length, 2a thread class, 0.281 inches minimum and 0.312 inches maximum fastener length, pan head style, 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: 0.245 inches minimum and 0.312 inches maximum
Fastener Length: 0.281 inches minimum and 0.312 inches maximum
Head Style: pan
Head Diameter: 0.180 inches minimum and 0.193 inches maximum
Head Height: 0.062 inches minimum and 0.071 inches maximum
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.099 inches
Thread Quantity Per Inch: 56
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
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
103760-0004	Machine Screw
281-1176	Machine Screw
639122-246	Machine Screw
9167345	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-00-220-2574?

The FSCG of the NSN 5305-00-220-2574 is 5305

Does the NSN 5305-00-220-2574 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-220-2574 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 5305-00-220-2574 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-220-2574 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 5305-00-220-2574 was assigned to the Federal Catalog?

It was assigned 57 years ago, on Wed, Feb 12, 1969