5305-00-767-2620

Find complete technical information, availability, and procurement data for: 5305-00-767-2620
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-767-2620

Item Name Code

29294

Assigment Date

10/07/1972 (53 years ago)

0.250 inches minimum and 0.317 inches maximum thread length, 3a thread class, 0.510 inches minimum and 0.557 inches maximum fastener length, right-hand thread direction, flat countersunk 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: 3a
Thread Direction: right-hand
Thread Length: 0.250 inches minimum and 0.317 inches maximum
Fastener Length: 0.510 inches minimum and 0.557 inches maximum
Head Style: flat countersunk
Head Diameter: 0.329 inches minimum and 0.337 inches maximum
Grip Diameter: 0.1625 inches minimum and 0.1635 inches maximum
Internal Drive Style: offset cruciform (torque set)
Nominal Thread Diameter: 0.164 inches
Grip Length: 0.240 inches minimum and 0.260 inches maximum
Thread Quantity Per Inch: 32
Minimum Tensile Strength: 180000 pounds per square inch
Hardness Rating: 39.0 rockwell c minimum and 43.0 rockwell c maximum overall
Countersink Angle: 100.0 degrees nominal
Surface Finish: 32.0 microinches grip
Material: steel comp 4340 or steel comp 4140 or steel comp 8740 overall
Material Document And Classification: mil-s-8844 mil spec 1st material response or mil-s-5626 mil spec 2nd material response or mil-s-6049 mil spec 3rd material response overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416 ty 2 cl 2 fed spec single treatment response overall
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
51B332-4	Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-00-767-2620?

The FSCG of the NSN 5305-00-767-2620 is 5305

Does the NSN 5305-00-767-2620 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-767-2620 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 5305-00-767-2620 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-767-2620 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 5305-00-767-2620 was assigned to the Federal Catalog?

It was assigned 53 years ago, on Sat, Oct 7, 1972