5305-01-390-6498

Find complete technical information, availability, and procurement data for: 5305-01-390-6498
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-390-6498

Item Name Code

29294

Assigment Date

05/24/1994 (32 years ago)

3.341 inches minimum and 3.371 inches maximum fastener length, 3a thread class, 0.981 inches nominal thread 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: 0.981 inches nominal
Fastener Length: 3.341 inches minimum and 3.371 inches maximum
Head Style: flat countersunk
Head Diameter: 0.852 inches minimum and 0.933 inches maximum
Grip Diameter: 0.623 inches minimum and 0.624 inches maximum
Internal Drive Style: offset cruciform (torque set)
Nominal Thread Diameter: 0.625 inches
Grip Length: 2.365 inches minimum and 2.385 inches maximum
Thread Quantity Per Inch: 18
Minimum Tensile Strength: 160000 pounds per square inch
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Material: steel comp 4140 or steel comp 4340 or steel comp 8740 overall
Material Document And Classification: mil-s-5626 mil spec 1st material response or mil-s-5000 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, type ii, class 2 fed spec all treatment responses overall
Thread Series Designator: unjf
Specification/Standard Data: 80205-nas1581 professional/industrial association standard

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
NAS1581A10T38	Close Tolerance Screw
NAS1581F10T38	Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-01-390-6498?

The FSCG of the NSN 5305-01-390-6498 is 5305

Does the NSN 5305-01-390-6498 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-390-6498 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 5305-01-390-6498 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-390-6498 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 5305-01-390-6498 was assigned to the Federal Catalog?

It was assigned 32 years ago, on Tue, May 24, 1994